Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-12-2024 13:03

General

  • Target

    d72d4fa102e2e46cc1a3153f68eae4f7_JaffaCakes118.exe

  • Size

    812KB

  • MD5

    d72d4fa102e2e46cc1a3153f68eae4f7

  • SHA1

    a43588d0cf65fe5a1c18edd8223485d0f9d093f2

  • SHA256

    c961504e0161888d7a137cc6ff8a609c8477711b5e6c70614867345a91184451

  • SHA512

    a6a6370cb3f602b52213aa8cc6e6f919e507190436611c25806909b28cb2b1925ce190a8945d3973a7bc353c39387b3d013ed0ffb7665e17106f30a066ef2ba5

  • SSDEEP

    12288:kaAchpWsuVTv7ItY8XljyypHP7cOLBev03hlULsmWZ++09ZcKDVsgdT:VAEENIq8XwyVPQclDq/+WnpsS

Malware Config

Signatures

  • Darkcomet

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

  • Darkcomet family
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Modifies security service 2 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Windows security modification 2 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Checks processor information in registry 2 TTPs 8 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies registry class 1 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d72d4fa102e2e46cc1a3153f68eae4f7_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\d72d4fa102e2e46cc1a3153f68eae4f7_JaffaCakes118.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Checks BIOS information in registry
    • Checks computer location settings
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Enumerates system info in registry
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2408
    • C:\Windupdt\winupdate.exe
      "C:\Windupdt\winupdate.exe"
      2⤵
      • Modifies security service
      • Windows security bypass
      • Checks BIOS information in registry
      • Executes dropped EXE
      • Windows security modification
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      • Enumerates system info in registry
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:4528
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\_dcsc_.bat" "
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:376
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 2
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:3176

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\_dcsc_.bat

    Filesize

    119B

    MD5

    0c2b6f7a64d9b748f1e4083b24f4abf6

    SHA1

    6260c71cf0e35b3b22ecd889ef395726dfd093dd

    SHA256

    545e869284a4697adf020b232f4c35fcba29cf56184f8b4ddc9158924093a66b

    SHA512

    d98f6410b7a95e0579683fcd93db8f865565456e3abba14bb72e93a272fd4b673f05b7194abd7f4e21006652e3ff18cea048c75201ddf0be68515a6b3259348b

  • C:\Windupdt\winupdate.exe

    Filesize

    812KB

    MD5

    d72d4fa102e2e46cc1a3153f68eae4f7

    SHA1

    a43588d0cf65fe5a1c18edd8223485d0f9d093f2

    SHA256

    c961504e0161888d7a137cc6ff8a609c8477711b5e6c70614867345a91184451

    SHA512

    a6a6370cb3f602b52213aa8cc6e6f919e507190436611c25806909b28cb2b1925ce190a8945d3973a7bc353c39387b3d013ed0ffb7665e17106f30a066ef2ba5

  • memory/2408-0-0x00000000022E0000-0x00000000022E1000-memory.dmp

    Filesize

    4KB

  • memory/2408-38-0x0000000000400000-0x00000000004D9000-memory.dmp

    Filesize

    868KB

  • memory/4528-43-0x0000000000400000-0x00000000004D9000-memory.dmp

    Filesize

    868KB

  • memory/4528-46-0x0000000000400000-0x00000000004D9000-memory.dmp

    Filesize

    868KB

  • memory/4528-41-0x0000000000400000-0x00000000004D9000-memory.dmp

    Filesize

    868KB

  • memory/4528-42-0x0000000000400000-0x00000000004D9000-memory.dmp

    Filesize

    868KB

  • memory/4528-35-0x0000000002570000-0x0000000002571000-memory.dmp

    Filesize

    4KB

  • memory/4528-44-0x0000000000400000-0x00000000004D9000-memory.dmp

    Filesize

    868KB

  • memory/4528-45-0x0000000000400000-0x00000000004D9000-memory.dmp

    Filesize

    868KB

  • memory/4528-40-0x0000000000400000-0x00000000004D9000-memory.dmp

    Filesize

    868KB

  • memory/4528-47-0x0000000000400000-0x00000000004D9000-memory.dmp

    Filesize

    868KB

  • memory/4528-48-0x0000000000400000-0x00000000004D9000-memory.dmp

    Filesize

    868KB

  • memory/4528-49-0x0000000000400000-0x00000000004D9000-memory.dmp

    Filesize

    868KB

  • memory/4528-50-0x0000000000400000-0x00000000004D9000-memory.dmp

    Filesize

    868KB

  • memory/4528-51-0x0000000000400000-0x00000000004D9000-memory.dmp

    Filesize

    868KB

  • memory/4528-52-0x0000000000400000-0x00000000004D9000-memory.dmp

    Filesize

    868KB

  • memory/4528-53-0x0000000000400000-0x00000000004D9000-memory.dmp

    Filesize

    868KB