Overview

overview

10

Static

static

5

ក្ម�...��.exe

windows10-2004-x64

10

ក្ម�...��.exe

windows11-ltsc_2024-x64

10

$PLUGINSDI...ec.dll

windows10-2004-x64

3

$PLUGINSDI...ec.dll

windows11-ltsc_2024-x64

3

TGFile.exe

windows10-2004-x64

1

TGFile.exe

windows11-ltsc_2024-x64

1

libepsbase.dll

windows10-2004-x64

1

libepsbase.dll

windows11-ltsc_2024-x64

1

lua51.dll

windows10-2004-x64

1

lua51.dll

windows11-ltsc_2024-x64

1

msvcr100.dll

windows10-2004-x64

1

msvcr100.dll

windows11-ltsc_2024-x64

1

vcruntime140.dll

windows10-2004-x64

1

vcruntime140.dll

windows11-ltsc_2024-x64

1

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General

  • Target
    26254f46ae07808cb0623890db27ed9ae7bd4b0e396162f61a61218fb6c866a4
  • Size 1.4MB
  • Sample260802-jsmsrsfc96
  • SHA256 26254f46ae07808cb0623890db27ed9ae7bd4b0e396162f61a61218fb6c866a4
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
valleyrat_s2backdoordiscoveryexecution

Malware Config

Targets

    • Target
      ក្មេងស្រីត្រូវបានរំលោភដោយមនុស្សជាច្រើន_វីដេអូអំពើហិង្សា.exe
    • Size 1.4MB
    • SHA256 7436fc8a7b768a162f3b785404beb61843358bfa43ca86904240c861ad772fff
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    backdoordiscoveryexecutionvalleyrat_s2

    • Detects ValleyRAT payload

    • Family: ValleyRat

      ValleyRat stage2 is a backdoor written in C++.

      backdoorvalleyrat_s2

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

      execution

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    behavioral1behavioral2
    • Target
      $PLUGINSDIR/nsExec.dll
    • Size 7KB
    • SHA256 b121689861b506dbc9c3797b49bc8a90d555cb7db58cb959165cc758391c00bb
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    discovery
    behavioral3behavioral4
    • Target
      TGFile.exe
    • Size 27KB
    • SHA256 09cd30b1b25da3ff6661be589d5c31460e51e9ee8e7925df37826456bb8da2bc
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    behavioral5behavioral6
    • Target
      libepsbase.dll
    • Size 262KB
    • SHA256 5a2fdc4111ce15f24e9283eb6b135046fdf47b14b193646b61798b72ce3c687c
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    behavioral7behavioral8
    • Target
      lua51.dll
    • Size 476KB
    • SHA256 355e34c71f6b3178092862529382566088aa80abeba67eb09fdf47852889b612
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    behavioral10behavioral9
    • Target
      msvcr100.dll
    • Size 809KB
    • SHA256 1d1a1ae540ba132f998d60d3622f0297b6e86ae399332c3b47462d7c0f560a36
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    behavioral11behavioral12
    • Target
      vcruntime140.dll
    • Size 121KB
    • SHA256 d5e4d9a3e835fa679450145d6a7d94e36573a509317111904d9b3712c30d9066
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    behavioral13behavioral14

MITRE ATT&CK Enterprise v16

Tasks