Ransom.Win32.WHITERABBIT.YPEDG

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

It encrypts files with specific file extensions. It drops files as ransom note. It avoids encrypting files with the following file extensions.

Arrival Details

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

Installation

This Ransomware drops the following files:

• {Malware Directory}\{Filename from argument} → If '-l' was used.

It adds the following processes:

• cmd /c choice /t 9 /d y & attrib -h {Malware File Path}\{Malware File Name} & copy %systemroot%\regedit.exe {Malware File Path}\{Malware File Name} /y & del {Malware File Path}\{Malware File Name}
• powershell.exe -NoExit -Command -

It adds the following mutexes to ensure that only one of its copies runs at any one time:

• Global\{GUID}

Process Termination

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

• msexchange*
• msex-change*
• vss
• sql
• svc$
• memtas
• mepocs
• sophos
• veeam
• backup
• gxvss
• gxblr
• gxfwd
• gxcvd
• gxcimgr
• defwatch
• ccevtmgr
• ccsetm
• grsavroam
• rtvscan
• qbfcservice
• qbidpservice
• intuit.quickbooks.fcs
• qbcfmonitorservice
• yoobackup
• yooit
• zhudongfangyu
• stc _ raw _ agent
• vsnapvss
• veeamtransportsvc
• veeamdeploymentservice
• veeamnfssvc
• pdvfsservice
• backupexecvssprovider
• backupexeca-gentaccelerator
• backupexecagentbrowser
• backupexecdivecimediaservice
• backupexecjobengine
• backupexecmanagementservice
• backupexecrpcservice
• acrsch2svc
• acronisagent
• casad2dwebsvc
• caarcupdatesvc
• vmwp
• back
• xchange
• ackup
• acronis
• enterprise
• acrsch
• antivirus
• bedbg
• dcagent
• epsecurity
• epupdate
• eraser
• esgshkernel
• fa_scheduler
• iisadmin
• imap4
• mbam
• endpoint
• afee
• mcshield
• task
• mfemms
• mfevtp
• mms
• msdts
• exchange
• ntrt
• pdvf
• pop3
• report
• resvc
• sacsvr
• savadmin
• sams
• sdrsvc
• sepmaster
• monitor
• smcinst
• smcservice
• smtp
• snac
• swi_
• ccsf
• truekey
• tmlisten
• ui0detect
• w3swrsvc
• netmsmq
• ekrn
• ehttpsrv
• vss
• sql
• svc$
• memtas
• mepocs
• sophos
• veeam
• backup
• gxvss
• gxblr
• gxfwd
• gxcvd
• gxcimgr
• defwatch
• ccevtmgr
• ccsetmgr
• savroam
• rtvscan
• qbfcservice
• qbidpservice
• intuit.quickbooks.fcs
• qbcfmonitorservice
• yoobackup
• yooit
• zhudongfangyu
• sophos
• stc_raw_agent
• vsnapvss
• veeamtransportsvc
• veeamdeploymentservice
• veeamnfssvc
• veeam
• pdvfsservice
• backupexecvssprovider
• backupexecagentaccelerator
• backupexecagentbrowser
• backupexecdivecimediaservice
• backupexecjobengine
• backupexecmanagementservice
• backupexecrpcservice
• acrsch2svc
• acronisagent
• casad2dwebsvc
• caarcupdatesvc

It terminates the following processes if found running in the affected system's memory:

• mysql*
• *sqlserver*
• sql*
• msdtc
• vmcompute
• vmms
• vmwp
• vmsp
• outlook
• oracle
• ocssd
• dbsnmp
• synctime
• agntsvc
• isqlplussvc
• xfssvccon
• mydesktopservice
• ocautoupds
• encsvc
• firefox
• tbirdconfig
• mydesktopqos
• ocomm
• dbeng50
• sqbcoreser-vice
• excel
• infopath
• msaccess
• mspub
• onenote
• powerpnt
• steam
• thebat
• thunderbird
• visio
• winword
• wordpad
• notepad
• virtual
• vmcomp
• veeam
• backup
• xchange
• dbeng
• sofos
• calc
• ekrn
• zoolz
• firefoxconfig
• mydesktop
• sqbcoreservice
• word
• tmlisten
• pccntmon
• cntaosmgr
• ntrtscan
• mbamtray
• eshasrv
• avp
• klnagent
• wbengine
• kavf
• mfefire

Other Details

This Ransomware does the following:

• It requires to be executed with the password/passphrase in order to proceed with its malicious routine:
  • Brooklyn8473
• It will encrypt files found in the following set of drives in the affected system:
  • Fixed Drives
  • Removable Drives
  • Network Drives and Resources

It accepts the following parameters:

• -p {password/passphrase}
• -f {file to encrypt}
• -l {logfile}
• -t {day}-{month}-{year} {hour}:{minute} → Use 24 Hour Format and 2 Digits

Ransomware Routine

This Ransomware encrypts files with the following extensions:

• *.txt
• *.csv
• *.rtf
• *.stl
• *.dwg
• *.sldprt
• *.step
• *.edrw
• *.prt
• *.sldasm
• *.slddrw
• *.sldprt
• *.smdot
• *.3mf
• *.amf
• *.prt
• *.sat
• *.ste
• *.sym
• *.log
• *.msg
• *.ps1
• *.bat
• *.vbs
• *.html
• *.c
• *.py
• *.cpp
• *.asm

It avoids encrypting files with the following strings in their file name:

• *\How To Restore Your Files.txt
• *\!!READ_ME!!.txt
• *\desktop.ini
• *\ntuser.dat
• *\bootsect.bak
• *\bootmgr
• *\bootmgr.efi
• *\bootmgfw.efi
• *\autorun.inf
• *\boot.ini
• *\bootfont.ini
• *\iconcache.db
• *\ntldr
• *\ntuser.dat.log
• *\ntuser.ini
• *\Thumbs.db
• *\ntuser.dat.log
• *\bootsect.bak
• *\autorun.inf
• *\autoexec.bat
• *\dumpstack.log.tmp
• *\excel.xlsx
• *\pdf.pdf
• *\text.txt
• *\word.docx
• *\Login Data

It avoids encrypting files with the following strings in their file path:

• C:\Windows\*
• *:\windows\*
• *:\program files (x86)\*
• *:\program files (x64)\*
• C:\Users\DYITUS~1\AppData\Local\Temp\*
• *:\program files\*
• *:\programdata\*
• *\Windows.old
• *\Tor Browser\*
• *\Internet Explorer\*
• *\Google\*
• *\Opera\*
• *\Opera Software\*
• *\Mozilla\*
• *\Mozilla Firefox\*
• *:\Share\Honeypot\*
• $Recycle.Bin
• *\Themes\*
• *:\users\all users\*
• *:\utenti\Pubblica\*
• *:\utenti\Default\*
• *:\$Secure\*

It appends the following extension to the file name of the encrypted files:

• It modifies the extension of the encrypted files by appending an underscore '_'.

It drops the following file(s) as ransom note:

• {Encrypted Directory}\!!READ_ME!!.txt
  

It avoids encrypting files with the following file extensions:

• *.lnk
• *.iso
• *.exe
• *.dll
• *.msi
• *.sys
• *.inf
• *.dll
• *.cynet
• *.mario
• *.lmario
• *.emario
• *.nmario