Analysis

  • max time kernel
    152s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-12-2022 22:13

General

  • Target

    91ed988a44af275b7d49d8542494a448fec80cb3d31bb05a78b3994158e44323.exe

  • Size

    1.4MB

  • MD5

    ce11858d4c29894d66a3e125d2ab60d6

  • SHA1

    c4685c4e59290f6402437812887819ec736e1cf8

  • SHA256

    91ed988a44af275b7d49d8542494a448fec80cb3d31bb05a78b3994158e44323

  • SHA512

    d8245539cae562a12c6910a67546f03be6f40e3d4c1b33f8e935eacad33d39ff7635c9ef8a041ba9aa451756ddb0c00880b1195cc626e900bb1c3fb7d9ecebaa

  • SSDEEP

    24576:fthEVaPqLTx3gMjfkJ9qPRZJydg2kIBIfOkbMHUBosmN:jEVUcTZg8s3sZJIgqBIfOqM01mN

Malware Config

Extracted

Family

darkcomet

Botnet

punjul20

C2

wra.sytes.net:5150

Mutex

DC_MUTEX-72CRM4X

Attributes
  • gencode

    cjY2mWhsp2tD

  • install

    false

  • offline_keylogger

    true

  • password

    wra

  • persistence

    false

Signatures

  • Darkcomet

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

  • UPX packed file 3 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • AutoIT Executable 2 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 24 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 27 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\91ed988a44af275b7d49d8542494a448fec80cb3d31bb05a78b3994158e44323.exe
    "C:\Users\Admin\AppData\Local\Temp\91ed988a44af275b7d49d8542494a448fec80cb3d31bb05a78b3994158e44323.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:5048
    • C:\Users\Admin\AppData\Local\Temp\91ed988a44af275b7d49d8542494a448fec80cb3d31bb05a78b3994158e44323.exe
      C:\Windows\SysWOW64\notepad.exe
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:860
      • C:\Windows\SysWOW64\notepad.exe
        notepad
        3⤵
          PID:920

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Persistence

    Registry Run Keys / Startup Folder

    1
    T1060

    Defense Evasion

    Modify Registry

    1
    T1112

    Discovery

    System Information Discovery

    1
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/860-133-0x0000000000000000-mapping.dmp
    • memory/860-134-0x00000000000D0000-0x0000000000182000-memory.dmp
      Filesize

      712KB

    • memory/860-135-0x00000000000D0000-0x0000000000182000-memory.dmp
      Filesize

      712KB

    • memory/860-138-0x00000000000D0000-0x0000000000182000-memory.dmp
      Filesize

      712KB

    • memory/860-139-0x00000000000D0000-0x0000000000182000-memory.dmp
      Filesize

      712KB

    • memory/860-141-0x00000000000D0000-0x0000000000182000-memory.dmp
      Filesize

      712KB

    • memory/920-140-0x0000000000000000-mapping.dmp
    • memory/5048-132-0x0000000000400000-0x000000000056B000-memory.dmp
      Filesize

      1.4MB

    • memory/5048-136-0x0000000000400000-0x000000000056B000-memory.dmp
      Filesize

      1.4MB

    • memory/5048-137-0x0000000000400000-0x000000000056B000-memory.dmp
      Filesize

      1.4MB