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Analysis

  • max time kernel
    150s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    02/01/2025, 22:50

General

  • Target

    JaffaCakes118_68b1ba65d78fa7a547fe1eb195560b30.exe

  • Size

    232KB

  • MD5

    68b1ba65d78fa7a547fe1eb195560b30

  • SHA1

    b2924db0b90a7cd1357ab37c011b0650f7cf6885

  • SHA256

    bd1a81e8a0505d314e1b2fa261db9ff554a76c4c783b863c8e6694bd6a2521fb

  • SHA512

    b6ee89144500df4a6d0a9961338fe91ab4a42bf14d61d6aad2faf9574b991feec3554c5b425a00c27bc343af7f30789a695d35d0aa6a8459e6488f0a3322cb5a

  • SSDEEP

    6144:3jFy93LU92VxOtVflFud4TnxcpPTASCmqMorHwMEoS:zFy9bPQZlFjrG0ZmYbwVoS

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16_min

C2

127.0.0.1:1604

Mutex

DCMIN_MUTEX-3W8LA5W

Attributes
  • InstallPath

    DCSCMIN\Ixcdfsf.exe

  • gencode

    ASYwHtlVyVXN

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • reg_key

    mgfhnfgh

Signatures

  • Darkcomet

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

  • Darkcomet family
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • UPX packed file 9 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_68b1ba65d78fa7a547fe1eb195560b30.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_68b1ba65d78fa7a547fe1eb195560b30.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Loads dropped DLL
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2536
    • C:\Users\Admin\Documents\DCSCMIN\Ixcdfsf.exe
      "C:\Users\Admin\Documents\DCSCMIN\Ixcdfsf.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2532

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\Documents\DCSCMIN\Ixcdfsf.exe

    Filesize

    232KB

    MD5

    68b1ba65d78fa7a547fe1eb195560b30

    SHA1

    b2924db0b90a7cd1357ab37c011b0650f7cf6885

    SHA256

    bd1a81e8a0505d314e1b2fa261db9ff554a76c4c783b863c8e6694bd6a2521fb

    SHA512

    b6ee89144500df4a6d0a9961338fe91ab4a42bf14d61d6aad2faf9574b991feec3554c5b425a00c27bc343af7f30789a695d35d0aa6a8459e6488f0a3322cb5a

  • memory/2532-19-0x0000000000260000-0x0000000000261000-memory.dmp

    Filesize

    4KB

  • memory/2532-13-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2532-14-0x0000000000260000-0x0000000000261000-memory.dmp

    Filesize

    4KB

  • memory/2532-17-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2532-22-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2532-28-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2532-29-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2536-1-0x0000000000270000-0x0000000000271000-memory.dmp

    Filesize

    4KB

  • memory/2536-10-0x0000000003730000-0x00000000037E7000-memory.dmp

    Filesize

    732KB

  • memory/2536-11-0x0000000003730000-0x00000000037E7000-memory.dmp

    Filesize

    732KB

  • memory/2536-16-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2536-0-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB