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Worm.PS1.LEMONDUCK.YPAE-A

June 17, 2020
 Analysis by: Mc Justine De Guzman
 PLATFORM:

Windows

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 DISTRIBUTION POTENTIAL:
 REPORTED INFECTION:
 INFORMATION EXPOSURE:

  • Threat Type: Worm

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Dropped by other malware, Downloaded from the Internet, Propagates via software vulnerabilities


This Worm arrives by connecting affected removable drives to a system. It arrives by accessing affected shared networks. It arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites. It may be downloaded from remote sites by other malware.

It takes advantage of software vulnerabilities to propagate across networks.

  TECHNICAL DETAILS

File Size:

188,536 bytes

File Type:

PS1

Memory Resident:

Yes

Initial Samples Received Date:

05 May 2020

Payload:

Exploits vulnerability, Disables services, Terminates processes, Steals information

Arrival Details

This Worm arrives by connecting affected removable drives to a system.

It arrives by accessing affected shared networks.

It arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

It may be downloaded from remote site(s) by the following malware:

Installation

This Worm drops the following files:

  • {Removable/Network Drive name}\Dblue3.lnk
  • {Removable/Network Drive name}\Eblue3.lnk
  • {Removable/Network Drive name}\Fblue3.lnk
  • {Removable/Network Drive name}\Gblue3.lnk
  • {Removable/Network Drive name}\Hblue3.lnk
  • {Removable/Network Drive name}\Iblue3.lnk
  • {Removable/Network Drive name}\Jblue3.lnk
  • {Removable/Network Drive name}\Dblue6.lnk
  • {Removable/Network Drive name}\Eblue6.lnk
  • {Removable/Network Drive name}\Fblue6.lnk
  • {Removable/Network Drive name}\Gblue6.lnk
  • {Removable/Network Drive name}\Hblue6.lnk
  • {Removable/Network Drive name}\Iblue6.lnk
  • {Removable/Network Drive name}\Jblue6.lnk
  • {Removable/Network Drive name}\readme.js -> detected as Trojan.JS.LEMONDUCK.MC
  • {Removable/Network Drive name}\UTFsync\inf_data - serves as infection marker
  • {Removable/Network Drive name}\Kblue6.lnk – detected as Trojan.Win64.SHELMA.SMB1
  • %Temp%\mimi.dat - detected as HackTool.Win64.MIMIKATZ.AL.component
  • %Temp%\m6.bin - detected as Trojan.PS1.LEMONDUCK.D
  • {Removable/Network Drive name}\Kblue3.lnk – detected as Trojan.Win32.POWLOAD.CMPNPD

It adds the following processes:

  • "%System%\NETSTAT.EXE" -anop TCP
  • "%System%\ipconfig.exe" /all
  • "%System%\ipconfig.exe" /displaydns
  • "%System%\NETSTAT.EXE" -ano

(Note: %System% is the Windows system folder, where it usually is C:\Windows\System32 on all Windows operating system versions.)

It creates the following folders:

  • {Removable Drive}:\UTFsync

Propagation

This Worm takes advantage of the following software vulnerabilities to propagate across networks:

Process Termination

This Worm terminates the following services if found on the affected system:

  • .Net CLR
  • 360rTys
  • \gm
  • ALGM
  • aspnet_staters
  • AxInstSV
  • ClipBooks
  • CLR
  • clr_optimization
  • DNS Server
  • ExpressVNService
  • IPSECS
  • lsass
  • Microsoft
  • Microsoft Telemetry
  • MpeSvc
  • mssecsvc2.0
  • mssecsvc2.1
  • Natimmonal
  • Nationaaal
  • National
  • Nationalaie
  • Nationalmll
  • Nationaloll
  • Nationalwpi
  • NetMsmqActiv Media NVIDIA
  • Oracleupdate
  • RpcEptManger
  • Samserver
  • Serhiez
  • Sncryption Media Playeq
  • Sougoudl
  • SRDSL
  • SuperProServer
  • SvcNlauser
  • SVSHost
  • SxS
  • sysmgt
  • system
  • taskmgr1
  • WebServers
  • WifiService
  • Windows Managers
  • Windows_Update
  • WinHasdadelp32
  • WinHasdelp32
  • WinHelp32
  • WinHelp64
  • WinHelpSvcs
  • WinSvc
  • WinVaultSvc
  • WissssssnHelp32
  • WmdnPnSN
  • wmiApServs
  • wmiApSrvs
  • WWW.DDOS.CN.COM
  • Xtfy
  • Xtfya
  • Xtfyxxx
  • xWinWpdSrv
  • Zational

It terminates processes or services that contain any of the following strings if found running in the affected system's memory:

  • 360
  • 8866
  • 9696
  • 9797
  • 9966
  • auto-upgeade
  • Avira
  • Calligrap
  • cara
  • Carbon
  • carss
  • cohernece
  • conhoste
  • csrsc
  • DW20
  • explores
  • Galligrp
  • gxdrv
  • Imaging
  • javaupd
  • lsmosee
  • minerd
  • MinerGate
  • msinfo
  • ress
  • SC
  • SearchIndex
  • secuams
  • service
  • Setring
  • Setting
  • Sqlceqp
  • SQLEXPRESS_X64_86
  • SQLforwin
  • svchosti
  • svshost
  • SystemIIS
  • SystemIISSec
  • taskegr
  • taskmgr1
  • Terms.EXE
  • Uninsta
  • update
  • upgeade
  • WerFault
  • WerMgr
  • win
  • WindowsDefender
  • WindowsUpdater
  • Workstation
  • xig
  • XMR
  • xmrig
  • yamm1

Dropping Routine

This Worm takes advantage of the following software vulnerabilities to drop malicious files:

Information Theft

This Worm gathers the following data:

  • Computer Name
  • Computer Uptime
  • Computer Username
  • Domain Information
  • Graphics Card Information
  • GUID
  • MAC Address
  • OS Information

Other Details

This Worm does the following:

  • It deletes the following scheduled tasks:
    • AdobeFlashPlayer
    • Bluetooths
    • Credentials
    • Ddrivers
    • DNS
    • DNS2
    • DnsCore
    • DnsCore
    • DnsScan
    • ECDnsCore
    • Flash
    • FlashPlayer1
    • FlashPlayer2
    • FlashPlayer3
    • gm
    • GooglePingConfigs
    • HispDemorn
    • HomeGroupProvider
    • IIS
    • LimeRAT-Admin
    • Microsoft Telemetry
    • Miscfost
    • MiscfostNsi
    • my1
    • Mysa
    • Mysa1
    • Mysa2
    • Mysa3
    • Netframework
    • ngm
    • ok
    • Oracle Java
    • Oracle Java Update
    • Oracle Products Reporter
    • RavTask
    • skycmd
    • Sorry
    • Spooler SubSystem Service
    • SYSTEM
    • System Log Security Check
    • SYSTEMa
    • TablteInputout
    • Update
    • Update service for products
    • Update service for Windows Service
    • Update1
    • Update2
    • Update3
    • Update4
    • Update_windows
    • WebServers
    • werclpsyport
    • Windows_Update
    • WindowsLogTasks
    • WindowsUpdate1
    • WindowsUpdate2
    • WindowsUpdate3
    • WwANsvc
  • It terminates the processes that contain the following strings in its command line:
    • --max-cpu-usage
    • -donate-level
    • -p x
    • blazepool
    • blockmasters
    • blockmasterscoins
    • bohemianpool
    • cryptmonero
    • crypto-pool
    • cryptonight
    • dwarfpool
    • hashrefinery
    • hashvault.pro
    • iwanttoearn.money
    • mine.bz
    • minercircle.com
    • minergate
    • miners.pro
    • mineXMR
    • mineXMR
    • mineXMR
    • mineXMR
    • miningpoolhubcoins
    • mixpools.org
    • mixpools.org
    • monero
    • monero.lindon-pool.win
    • moriaxmr.com
    • mypool.online
    • nanopool.org
    • nicehash
    • onero
    • pool.electroneum.hashvau
    • pool.monero.hashvault.pr
    • pool.xmr
    • poolto.be
    • prohash
    • prohash.net
    • ratchetmining.com
    • slushpool
    • stratum+
    • suprnova.cc
    • teracycle.net
    • usxmrpool
    • viaxmr.com
    • xmrpool
    • yiimp
    • zergpool
    • zergpoolcoins
    • zpool
  • It is capable of propagating in the local network via the following means:
    • SMB Exploit (MS17-010)
    • MSSQL Brute forcing
    • Dumping Windows Domain Credentials using any of the following techniques/tools:
      • Mimikatz
      • Pass-The-Hash

  • It is capable of performing RDP Brute Force Attack using the following credentials:
    • Username
      • Administrator
    • Password
      • !@#$%^&*
      • 000000
      • 1
      • 1111
      • 111111
      • 111111111
      • 112233
      • 11223344
      • 12
      • 121212
      • 123
      • 123
      • 123
      • 123!@#qwe
      • 123.com
      • 123123123
      • 123321
      • 1234
      • 12345
      • 123456
      • 123456
      • 1234567
      • 12345678
      • 123456789
      • 1234567890
      • 123456789a
      • 123456a
      • 123@abc
      • 123qwe
      • 123qwe!@#
      • 1q2w3e4r
      • 1q2w3e4r5t
      • 1qaz!QAZ
      • 1qaz2wsx
      • 1qaz@WSX
      • 21
      • 321
      • 5201314
      • 55
      • 5555
      • 654321
      • 666666
      • 7222222
      • 888888
      • 88888888
      • 987654321
      • 999999
      • A123456
      • A123456
      • a123456789
      • Aa
      • aa123456
      • Aa123456.
      • Aa12345678
      • aaaaaa
      • Ab123
      • abc
      • abc123
      • abc123
      • abc@123
      • ABCabc123
      • abcd1234
      • abcd@1234
      • abcdefg
      • admin
      • Admin123
      • admin888
      • Admin@123
      • Admin@123
      • administrator
      • administrator
      • asdf
      • baseball
      • charlie
      • dragon
      • dubsmash
      • football
      • fuckyou
      • g_czechout
      • golden
      • hello
      • homelesspa
      • Huawei@123
      • iloveyou
      • login
      • love
      • master
      • monkey
      • P@SSW0RD
      • P@SSW0RD
      • P@SSW0RD
      • P@SSWORD
      • P@SSWORD
      • P@SSWORD
      • P@w0rd
      • P@word
      • pass
      • passw0rd
      • passw0rd
      • PASSWORD
      • PASSWORD
      • password1
      • princess
      • qazwsx
      • qwe123
      • qwe1234
      • qwe1234a
      • qwe1234a
      • qwer12345
      • qwerty
      • qwertyuiop
      • sa
      • sa123
      • sa2008
      • saadmin
      • sapassword
      • sasa
      • sql2005
      • sql2008
      • sqlpassword
      • sunshine
      • superman
      • test1
      • welcome
      • zinch
      • zxcvbn
    • NTLM Hashes
      • 00AFFD88FA323B00D4560BF9FEF0EC2F
      • 066DDFD4EF0E9CD7C256FE77191EF43C
      • 0D757AD173D2FC249CE19364FD64C8EC
      • 0E032B9D51A580AC6CDFABAD8BC97A38
      • 13B29964CC2480B4EF454C59562E675C
      • 152EFBCFAFEB22EABDA8FC5E68697A41
      • 161CFF084477FE596A5DB81874498A24
      • 162E829BE112225FEDF856E38E1C65FE
      • 1C4ECC8938FB93812779077127E97662
      • 209C6174DA490CAEB422F3FA5A7AE634
      • 259745CB123A52AA2E693AAACCA2DB52
      • 2D20D252A479F485CDF5E171D93985BF
      • 2D7F1A5A61D3A96FB5159B5EEF17ADC6
      • 2E4DBF83AA056289935DAEA328977B20
      • 2F2D544C53B3031F24D63402EA7FB4F9
      • 30FCAA8AD9A496B3E17F7FBFACC72993
      • 31FC0DC8F7DFAD0E8BD7CCC3842F2CE9
      • 320A78179516C385E35A93FFA0B1C4AC
      • 328727B81CA05805A68EF26ACB252039
      • 32ED87BDB5FDC5E9CBA88547376818D4
      • 36AA83BDCAB3C9FDAF321CA42A31C3FC
      • 3DBDE697D71690A769204BEB12283678
      • 3F9F5F112DA330AC4C20BE279C6ADDFA
      • 3FA45A060BD2693AE4C05B601D05CA0C
      • 4057B60B514C5402DDE3D29A1845C366
      • 41630ABB825CA50DA31CE1FAC1E9F54D
      • 47BF8039A8506CD67C524A03FF84BA4E
      • 4ED91524CB54EAACC17A185646FB7491
      • 570A9A65DB8FBA761C1008A51D4C95AB
      • 579110C49145015C47ECD267657D3174
      • 579DA618CFBFA85247ACF1F800A280A4
      • 5835048CE94AD0564E29A924A03510EF
      • 588FEB889288FB953B5F094D47D1565C
      • 5AE7B89B3AFEA28D448ED31B5C704289
      • 648AFF3A042261BAB4978076DE2C6B8C
      • 674E48B68C5CD0EFD8F7E5FAA87B3D1E
      • 6920C58D0DF184D829189C44FAFB7ECE
      • 69943C5E63B4D2C104DBBCC15138B72B
      • 6AA8BC1D5018300D54E51C9860FA961C
      • 6D3986E540A63647454A50E26477EF94
      • 6F12C0AB327E099821BD938F39FAAB0D
      • 71C5391067DE41FAD6F3063162E5EEFF
      • 72F5CFA80F07819CCBCFB72FEB9EB9B7
      • 73F5D97549F033374FA6D9F9CE247FFD
      • 7A21990FCD3D759941E45C490F143D5F
      • 7B592E4F8178B4C75788531B2E747687
      • 7CE21F17C0AEE7FB9CEBA532D0546AD6
      • 81E5F1ADC94DD08B1A072F9C1AE3DD3F
      • 85DEEEC2D12F917783B689AE94990716
      • 8846F7EAEE8FB117AD06BDD830B7586C
      • A4141712F19E9DD5ADF16919BB38A95C
      • A80C9CC3F8439ADA25AF064A874EFE2D
      • A836EF24F0A529688BE2AF1479A95411
      • A87F3A337D73085C45F9416BE5787D86
      • AA647B916A1FAD374DF9C30711D58A7A
      • AACD12D27C87CAC8FC0B8538AED6F058
      • ACB98FD0478427CD18949050C5E87B47
      • AD70819C5BC807280974D80F45982011
      • AF27EFB60C7B238910EFE2A7E0676A39
      • AFFFEBA176210FAD4628F0524BFE1942
      • B3EC3E03E2A202CBD54FD104B8504FEF
      • B963C57010F218EDC2CC3C229B5E4D0F
      • B9ACFD3C52ED0D6988BED8EB9AC636D6
      • B9F917853E3DBF6E6831ECCE60725930
      • BA07BA35933E5BF42DEA4AF8ADD09D1E
      • BC007082D32777855E253FD4DEFE70EE
      • BCDF115FD9BA99336C31E176EE34B304
      • C1790553DBB8362FA7F16D564585B4D1
      • C22B315C040AE6E0EFEE3518D830362B
      • D144986C6122B1B1654BA39932465528
      • D30C2EF8389AC9E8516BAACB29463B7B
      • DE26CCE0356891A4A020E7C4957AFC72
      • DF54DE3F3438343202C1DD523D0265BE
      • E19CCF75EE54E06B06A5907AF13CEF42
      • E1A692BD23BDE99B327756E59308B4F8
      • E45A314C664D40A227F9540121D1A29D
      • E5810F3C99AE2ABB2232ED8458A61309
      • E5AE562DDFAA6B446C32764AB1EBF3ED
      • E6BD4CDB1E447131B60418F31D0B81D6
      • E7380AE8EF85AE55BDCEAA59E418BD06
      • E84D037613721532E6B6D84D215854B6
      • E8CD0E4A9E89EAB931DC5338FCBEC54A
      • F1351AC828428D74F6DA2968089FC91F
      • F2477A144DFF4F216AB81F2AC3E3207D
      • F4BB18C1165A89248F9E853B269A8995
      • F56A8399599F1BE040128B1DD9623C29
      • F67F5E3F66EFD7298BE6ACD32EEEB27C
      • F9E37E83B83C47A93C2F09F66408631B
  • It terminates any process found to be connected to the following ports:
    • 1111
    • 13333
    • 14433
    • 14444
    • 16633
    • 16666
    • 2222
    • 3333
    • 4444
    • 45560
    • 55335
    • 5555
    • 65333
    • 6633
    • 6666
    • 7777
    • 8888
    • 9980
    • 9999

  SOLUTION

Minimum Scan Engine:

9.850

FIRST VSAPI PATTERN FILE:

15.850.02

FIRST VSAPI PATTERN DATE:

05 May 2020

VSAPI OPR PATTERN File:

15.851.00

VSAPI OPR PATTERN Date:

06 May 2020

Step 1

Before doing any scans, Windows 7, Windows 8, Windows 8.1, and Windows 10 users must disable System Restore to allow full scanning of their computers.

Step 2

Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.

Step 3

Restart in Safe Mode

[ Learn More ]

Step 4

Search and delete this folder

[ Learn More ]
Please make sure you check the Search Hidden Files and Folders checkbox in the More advanced options option to include all hidden folders in the search result.
  • {Removable/Network Drive name}\UTFsync

Step 5

Search and delete these files

[ Learn More ]
There may be some files that are hidden. Please make sure you check the Search Hidden Files and Folders checkbox in the "More advanced options" option to include all hidden files and folders in the search result.
  • {Removable/Network Drive name}\Dblue3.lnk
  • {Removable/Network Drive name}\Eblue3.lnk
  • {Removable/Network Drive name}\Fblue3.lnk
  • {Removable/Network Drive name}\Gblue3.lnk
  • {Removable/Network Drive name}\Hblue3.lnk
  • {Removable/Network Drive name}\Iblue3.lnk
  • {Removable/Network Drive name}\Jblue3.lnk
  • {Removable/Network Drive name}\Kblue3.lnk
  • {Removable/Network Drive name}\Dblue6.lnk
  • {Removable/Network Drive name}\Eblue6.lnk
  • {Removable/Network Drive name}\Fblue6.lnk
  • {Removable/Network Drive name}\Gblue6.lnk
  • {Removable/Network Drive name}\Hblue6.lnk
  • {Removable/Network Drive name}\Iblue6.lnk
  • {Removable/Network Drive name}\Jblue6.lnk
  • {Removable/Network Drive name}\Kblue6.lnk
  • {Removable/Network Drive name}\readme.js
  • {Removable/Network Drive name}\UTFsync\inf_data

Step 6

Restart in normal mode and scan your computer with your Trend Micro product for files detected as Worm.PS1.LEMONDUCK.YPAE-A. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check this Knowledge Base page for more information.


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