Analysis

  • max time kernel
    187s
  • max time network
    192s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 13:44

General

  • Target

    894e3644929bec7530458bf5e71b3d4fc1f2cae8fa9ea17880644c9a8b09a523.exe

  • Size

    1.4MB

  • MD5

    60a9c28e01b11254b21a765021a5c047

  • SHA1

    6b070320d8fd5f062884ff97d6fa0914c25ca497

  • SHA256

    894e3644929bec7530458bf5e71b3d4fc1f2cae8fa9ea17880644c9a8b09a523

  • SHA512

    65b1d35ee737fb86f61632ec9411927cd693ea74d51aa3db2aa2048ec9924ca96d2c4f58f86c79b8a309a3345ab251c8c26ae37473ae9636ba52488c97cc9be9

  • SSDEEP

    12288:EmG3KzGqLHIZ9wivE7hBeZ7AJhVGAQhHPq3Ycat4WUujROpDdn6mh/k+lNhI2r:bG65IZ9wivgBetuGAQhvcWLgCmFkcLr

Malware Config

Extracted

Family

darkcomet

Botnet

WIRE

C2

munachim.linkpc.net:1605

Mutex

DCMIN_MUTEX-MSP77U0

Attributes
  • InstallPath

    DCSCMIN\IMDCSC.exe

  • gencode

    mor58pndC03T

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • reg_key

    DarkComet RAT

Signatures

  • Darkcomet

    DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 31 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\894e3644929bec7530458bf5e71b3d4fc1f2cae8fa9ea17880644c9a8b09a523.exe
    "C:\Users\Admin\AppData\Local\Temp\894e3644929bec7530458bf5e71b3d4fc1f2cae8fa9ea17880644c9a8b09a523.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4532
    • C:\Users\Admin\AppData\Local\Temp\894e3644929bec7530458bf5e71b3d4fc1f2cae8fa9ea17880644c9a8b09a523.exe
      "C:\Users\Admin\AppData\Local\Temp\894e3644929bec7530458bf5e71b3d4fc1f2cae8fa9ea17880644c9a8b09a523.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1672
      • C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe
        "C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2008
        • C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe
          "C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:4940

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe

    Filesize

    1.4MB

    MD5

    60a9c28e01b11254b21a765021a5c047

    SHA1

    6b070320d8fd5f062884ff97d6fa0914c25ca497

    SHA256

    894e3644929bec7530458bf5e71b3d4fc1f2cae8fa9ea17880644c9a8b09a523

    SHA512

    65b1d35ee737fb86f61632ec9411927cd693ea74d51aa3db2aa2048ec9924ca96d2c4f58f86c79b8a309a3345ab251c8c26ae37473ae9636ba52488c97cc9be9

  • C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe

    Filesize

    1.4MB

    MD5

    60a9c28e01b11254b21a765021a5c047

    SHA1

    6b070320d8fd5f062884ff97d6fa0914c25ca497

    SHA256

    894e3644929bec7530458bf5e71b3d4fc1f2cae8fa9ea17880644c9a8b09a523

    SHA512

    65b1d35ee737fb86f61632ec9411927cd693ea74d51aa3db2aa2048ec9924ca96d2c4f58f86c79b8a309a3345ab251c8c26ae37473ae9636ba52488c97cc9be9

  • C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe

    Filesize

    1.4MB

    MD5

    60a9c28e01b11254b21a765021a5c047

    SHA1

    6b070320d8fd5f062884ff97d6fa0914c25ca497

    SHA256

    894e3644929bec7530458bf5e71b3d4fc1f2cae8fa9ea17880644c9a8b09a523

    SHA512

    65b1d35ee737fb86f61632ec9411927cd693ea74d51aa3db2aa2048ec9924ca96d2c4f58f86c79b8a309a3345ab251c8c26ae37473ae9636ba52488c97cc9be9

  • memory/1672-135-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/1672-137-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/1672-134-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/1672-133-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/1672-132-0x0000000000000000-mapping.dmp

  • memory/2008-136-0x0000000000000000-mapping.dmp

  • memory/4940-140-0x0000000000000000-mapping.dmp

  • memory/4940-144-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/4940-145-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/4940-146-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB