Coinminer.Win64.MALXMR.SMF

February 17, 2020
 ALIASES:

Trojan-Ransom.Win32.PornoAsset.dghh (Kaspersky); Trojan.Win32.Generic!BT (Sunbelt)

 PLATFORM:

Windows

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 REPORTED INFECTION:

  • Threat Type: Coinminer

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

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

  TECHNICAL DETAILS

File Size:

3,063,517 bytes

File Type:

EXE

Memory Resident:

Yes

Initial Samples Received Date:

17 Feb 2020

Arrival Details

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

Other System Modifications

This Coinminer modifies the following file(s):

  • %System Root%\Email and Password List.htm
  • %System Root%\Email and Password List.vbs
  • %System Root%\$Recycle.Bin\S-1-5-21-2407829820-1079796033-203259571-500\$IC8HJH8.zip
  • %System Root%\Email and Password List.txt
  • %System Root%\$Recycle.Bin\S-1-5-21-2407829820-1079796033-203259571-500\$IROWNQH.exe
  • %System Root%\Email and Password List.js
  • %System Root%\AVScanner.ini

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

Dropping Routine

This Coinminer drops the following files:

  • %System Root%\Email and Password List.htm
  • %System Root%\Email and Password List.vbs.exe
  • %System Root%\Email and Password List.txt.exe
  • %System Root%\$Recycle.Bin\S-1-5-21-2407829820-1079796033-203259571-1000\desktop.ini
  • A:\Install.exe
  • A:\autorun.inf
  • %System Root%\$Recycle.Bin\S-1-5-21-2407829820-1079796033-203259571-500\$IROWNQH.exe.exe
  • D:\autorun.inf
  • %System Root%\$Recycle.Bin\S-1-5-21-2407829820-1079796033-203259571-500\desktop.ini
  • A:\Installer.exe
  • %System Root%\$Recycle.Bin\S-1-5-21-2407829820-1079796033-203259571-500\desktop.ini.exe
  • %System Root%\Email and Password List.htm.exe
  • %System Root%\Email and Password List.vbs
  • %System Root%\$Recycle.Bin\S-1-5-21-2407829820-1079796033-203259571-500\$IC8HJH8.zip
  • %System Root%\$Recycle.Bin\S-1-5-21-2407829820-1079796033-203259571-500\$IC8HJH8.zip.exe
  • %System Root%\AVScanner.ini.exe
  • D:\Installer.exe
  • %System Root%\Email and Password List.txt
  • A:\Setup.exe
  • %System Root%\Email and Password List.js
  • D:\Install.exe
  • D:\Setup.exe
  • %System Root%\$Recycle.Bin\S-1-5-21-2407829820-1079796033-203259571-1000\desktop.ini.exe
  • A:\USBDriver.exe
  • D:\USBDriver.exe
  • %System Root%\$Recycle.Bin\S-1-5-21-2407829820-1079796033-203259571-500\$IROWNQH.exe
  • F:\autorun.inf
  • %System Root%\AVScanner.ini
  • %System Root%\Email and Password List.js.exe
  • F:\Setup.exe
  • F:\USBDriver.exe
  • F:\Installer.exe
  • F:\Install.exe

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

Other Details

This Coinminer connects to the following possibly malicious URL:

  • http://enoyq5{BLOCKED}xy70oq.{BLOCKED}x.pipedream.net
  • http://lSbbiiiNT.{BLOCKED}ket.com
  • http://{BLOCKED}ket.org
  • http://qac.{BLOCKED}ket.com
  • http://xITuPCgZvYroMq.{BLOCKED}ket.com
  • http://efL.{BLOCKED}ket.com
  • http://QcplNq.{BLOCKED}ket.com
  • http://C.{BLOCKED}ket.com
  • http://EGwCTyINkp.{BLOCKED}ket.com
  • http://ZgcSjwMjM.{BLOCKED}ket.com
  • http://{BLOCKED}a.nz
  • http://codeload.{BLOCKED}b.com
  • http://raw.{BLOCKED}usercontent.com
  • http://www.{BLOCKED}s.edu
  • http://{BLOCKED}er.com
  • http://bQLrsXhyDgCSSh.{BLOCKED}ket.com
  • http://WxfEChoFlaNqB.{BLOCKED}ket.com
  • http://JhrFNbJtVkp.{BLOCKED}ket.com
  • http://QNCFjFEQae.{BLOCKED}ket.com
  • http://UADGMfJxaBkWy.{BLOCKED}ket.com
  • http://www.{BLOCKED}x.com
  • http://IEAZO.{BLOCKED}ket.com
  • http://dnaonlqWwEuuW.{BLOCKED}ket.com
  • http://ESzD.{BLOCKED}ket.com
  • http://rzVsdljyAZzny.{BLOCKED}ket.com
  • http://CQtDZcwnVZX.{BLOCKED}ket.com
  • http://eFejeDZ.{BLOCKED}ket.com
  • http://PkiDnx.{BLOCKED}ket.com
  • http://ie.{BLOCKED}vzdthsaslksxts.readme.io
  • http://sloet.{BLOCKED}egkeijnbvirsap.readme.io
  • http://n.{BLOCKED}fngztwlwxebdtz.readme.io
  • http://ernokyzd.{BLOCKED}kcfzdhpctzqefz.readme.io
  • http://xddobncxvf.{BLOCKED}lciibnafnbflqh.readme.io
  • http://se.{BLOCKED}ptsyqsmdvuaejb.readme.io
  • http://{BLOCKED}n.net
  • http://www.{BLOCKED}c.com
  • http://Khgc.{BLOCKED}ket.com
  • http://CcqJ.{BLOCKED}ket.com
  • http://ZtrVVmI.{BLOCKED}ket.com
  • http://Cqkt.{BLOCKED}ket.com
  • http://qHbb.{BLOCKED}ket.com
  • http://www.{BLOCKED}ror.com
  • http://Uh.{BLOCKED}ket.com
  • http://jmbvmwp.{BLOCKED}7.com
  • http://Kgl.{BLOCKED}ket.com
  • http://xGyiRHihXI.{BLOCKED}ket.com
  • http://LWwd.{BLOCKED}ket.com
  • http://sHSXzsRMHMsRY.{BLOCKED}ket.com
  • http://FR.{BLOCKED}ket.com
  • http://MTw.{BLOCKED}ket.com
  • http://owjpCnC.{BLOCKED}ket.com
  • http://jggbbnngbv.{BLOCKED}yuwoishkngnoxw.readme.io
  • http://aqkw.{BLOCKED}geykqfijqznnkk.readme.io
  • http://zN.{BLOCKED}ket.com
  • http://xVyyAlggLdlEv.{BLOCKED}ket.com
  • http://EFeLFYESC.{BLOCKED}ket.com
  • http://IGdPt.{BLOCKED}ket.com
  • http://ckXdjBAHI.{BLOCKED}ket.com
  • http://Txz.{BLOCKED}ket.com
  • http://ekpWTnHeOhhvl.{BLOCKED}ket.com
  • http://tzpatuqtIpIrD.{BLOCKED}ket.com
  • http://zHLSogqPF.{BLOCKED}ket.com
  • http://id{BLOCKED}mercial.{BLOCKED}m.br
  • http://ruEAWTW.{BLOCKED}ket.com
  • http://id.{BLOCKED}ket.com
  • http://szvmOfuVNtgX.{BLOCKED}ket.com
  • http://jKqvDczGKOIzlB.{BLOCKED}ket.com
  • http://zbrIQewEoH.{BLOCKED}ket.com
  • http://EsSHAT.{BLOCKED}ket.com
  • http://drive.{BLOCKED}e.com
  • http://yRiqcLS.{BLOCKED}ket.com
  • http://nPBn.{BLOCKED}ket.com
  • http://tzuCLSglWTaeqU.{BLOCKED}ket.com
  • http://AMlTVXMvOub.{BLOCKED}ket.com
  • http://BdnNDJ.{BLOCKED}ket.com
  • http://kOHP.{BLOCKED}ket.com
  • http://uiqdpnfehgfe.{BLOCKED}nzqfqalrfeqopr.readme.io
  • http://v.{BLOCKED}wfyakndlsesgll.readme.io
  • http://kguei.{BLOCKED}dnpabndoyrgfpy.readme.io
  • http://h.{BLOCKED}mxlqkhklyravet.readme.io
  • http://nRtmp.{BLOCKED}ket.com
  • http://lwYNjXXtQsV.{BLOCKED}ket.com
  • http://PQdBk.{BLOCKED}ket.com
  • http://ZcCKTVIFfmEAUC.{BLOCKED}ket.com
  • http://zAnehUafPsHGlk.{BLOCKED}ket.com
  • http://uXhfiwShwoTPu.{BLOCKED}ket.com
  • http://XZRIgtPFAruPv.{BLOCKED}ket.com
  • http://iwDrRJWdVFb.{BLOCKED}ket.com
  • http://ogThdyLZHPdVL.{BLOCKED}ket.com
  • http://cAITEhcdUglZTn.{BLOCKED}ket.com
  • http://Zz.{BLOCKED}ket.com
  • http://xDfwaHR.{BLOCKED}ket.com
  • http://{BLOCKED}lsnow.com
  • http://rxpwpnhxbj.{BLOCKED}vatqqlaapgydbq.readme.io
  • http://xdo.{BLOCKED}kpjqomtbxkmdxa.readme.io
  • http://GWUgvH.{BLOCKED}ket.com
  • http://AjtfQApFKO.{BLOCKED}ket.com
  • {BLOCKED}.248.16

This report is generated via an automated analysis system.

  SOLUTION

Minimum Scan Engine:

9.850

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

Search and delete these components

[ Learn More ]
There may be some components 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.
  • %System Root%\Email and Password List.htm
  • %System Root%\Email and Password List.vbs.exe
  • %System Root%\Email and Password List.txt.exe
  • %System Root%\$Recycle.Bin\S-1-5-21-2407829820-1079796033-203259571-1000\desktop.ini
  • A:\Install.exe
  • A:\autorun.inf
  • %System Root%\$Recycle.Bin\S-1-5-21-2407829820-1079796033-203259571-500\$IROWNQH.exe.exe
  • D:\autorun.inf
  • %System Root%\$Recycle.Bin\S-1-5-21-2407829820-1079796033-203259571-500\desktop.ini
  • A:\Installer.exe
  • %System Root%\$Recycle.Bin\S-1-5-21-2407829820-1079796033-203259571-500\desktop.ini.exe
  • %System Root%\Email and Password List.htm.exe
  • %System Root%\Email and Password List.vbs
  • %System Root%\$Recycle.Bin\S-1-5-21-2407829820-1079796033-203259571-500\$IC8HJH8.zip
  • %System Root%\$Recycle.Bin\S-1-5-21-2407829820-1079796033-203259571-500\$IC8HJH8.zip.exe
  • %System Root%\AVScanner.ini.exe
  • D:\Installer.exe
  • %System Root%\Email and Password List.txt
  • A:\Setup.exe
  • %System Root%\Email and Password List.js
  • D:\Install.exe
  • D:\Setup.exe
  • %System Root%\$Recycle.Bin\S-1-5-21-2407829820-1079796033-203259571-1000\desktop.ini.exe
  • A:\USBDriver.exe
  • D:\USBDriver.exe
  • %System Root%\$Recycle.Bin\S-1-5-21-2407829820-1079796033-203259571-500\$IROWNQH.exe
  • F:\autorun.inf
  • %System Root%\AVScanner.ini
  • %System Root%\Email and Password List.js.exe
  • F:\Setup.exe
  • F:\USBDriver.exe
  • F:\Installer.exe
  • F:\Install.exe

Step 3

Scan your computer with your Trend Micro product to delete files detected as Coinminer.Win64.MALXMR.SMF. 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 the following Trend Micro Support pages for more information:

Step 4

Restore deleted/modified files and/or registry entries from backup

*Note: Only Microsoft-related files/keys/values will be restored. If this malware/grayware also deleted registry keys/values related to programs that are not from Microsoft, please reinstall those programs on your computer.

    • %System Root%\Email and Password List.htm
    • %System Root%\Email and Password List.vbs
    • %System Root%\$Recycle.Bin\S-1-5-21-2407829820-1079796033-203259571-500\$IC8HJH8.zip
    • %System Root%\Email and Password List.txt
    • %System Root%\$Recycle.Bin\S-1-5-21-2407829820-1079796033-203259571-500\$IROWNQH.exe
    • %System Root%\Email and Password List.js
    • %System Root%\AVScanner.ini


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