Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250314-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/03/2025, 18:55

General

  • Target

    JaffaCakes118_931fd2df25c735a9fe6281aca92d154e.exe

  • Size

    1.4MB

  • MD5

    931fd2df25c735a9fe6281aca92d154e

  • SHA1

    b9cd9f2daa8ed036dfb28a586c7361946db65b49

  • SHA256

    fd24ebf0579e4a7913ef3cbf447f761044368083c12d622e111512141f340f0f

  • SHA512

    32182cc3a4376507a8c60898d601130e3109ae16fee5aa3ebf6e9d50d0b4e3cd670d2d54c8e627b23a1a8604098d20caefaa255261f9c0494f9216f122389be3

  • SSDEEP

    24576:1mv86/nmFmu9FujCXCedRVioC8/77sNLgHu9uwsVx7IRUzJkTTX4JkTTX:1Rwn9pCSWXiU/729uRxPl2c2

Malware Config

Extracted

Family

darkcomet

C2

absolute2011.no-ip.org:1604

Mutex

DC_MUTEX-H9KARFD

Attributes
  • gencode

    GfqXgvhYAhD-

  • install

    false

  • offline_keylogger

    false

  • persistence

    false

rc4.plain

Signatures

  • Darkcomet

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

  • Darkcomet family
  • 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
  • Suspicious use of SetThreadContext 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 2 IoCs

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

  • 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
  • Suspicious use of AdjustPrivilegeToken 49 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_931fd2df25c735a9fe6281aca92d154e.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_931fd2df25c735a9fe6281aca92d154e.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5116
    • C:\Users\Admin\AppData\Local\Temp\tmp9FDA.tmp.exe
      "C:\Users\Admin\AppData\Local\Temp\tmp9FDA.tmp.exe"
      2⤵
      • Checks BIOS information in registry
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      • Enumerates system info in registry
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1404
      • C:\Windows\SysWOW64\explorer.exe
        "C:\Windows\SysWOW64\explorer.exe"
        3⤵
        • Checks BIOS information in registry
        • System Location Discovery: System Language Discovery
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious use of AdjustPrivilegeToken
        PID:5964

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp9FDA.tmp.exe

    Filesize

    1.0MB

    MD5

    4798ffd2ab4c7f0807d2fc12a790b1cf

    SHA1

    b1efebfe3b6638adf2a9fa84f96ac6864733f136

    SHA256

    7685e8909609d9b317d7044fefb1bf646127d6f22cef416ddeb13260b29d8482

    SHA512

    83fd71f51cf15444d8f89f1df3407855b1635396d0f7751ab5235779ed0de4faf0550bce9ef9719f3bca138311a4e579402b26830c9c53663986d643900a89a2

  • memory/1404-20-0x0000000013140000-0x0000000013256000-memory.dmp

    Filesize

    1.1MB

  • memory/1404-14-0x0000000002240000-0x0000000002241000-memory.dmp

    Filesize

    4KB

  • memory/5116-4-0x00007FFF94670000-0x00007FFF95011000-memory.dmp

    Filesize

    9.6MB

  • memory/5116-0-0x00007FFF94925000-0x00007FFF94926000-memory.dmp

    Filesize

    4KB

  • memory/5116-13-0x00007FFF94670000-0x00007FFF95011000-memory.dmp

    Filesize

    9.6MB

  • memory/5116-2-0x00007FFF94670000-0x00007FFF95011000-memory.dmp

    Filesize

    9.6MB

  • memory/5116-1-0x000000001BAA0000-0x000000001BB46000-memory.dmp

    Filesize

    664KB

  • memory/5964-16-0x0000000013140000-0x0000000013256000-memory.dmp

    Filesize

    1.1MB

  • memory/5964-17-0x0000000013140000-0x0000000013256000-memory.dmp

    Filesize

    1.1MB

  • memory/5964-18-0x0000000013140000-0x0000000013256000-memory.dmp

    Filesize

    1.1MB

  • memory/5964-19-0x0000000013140000-0x0000000013256000-memory.dmp

    Filesize

    1.1MB

  • memory/5964-22-0x0000000013140000-0x0000000013256000-memory.dmp

    Filesize

    1.1MB

  • memory/5964-21-0x0000000013140000-0x0000000013256000-memory.dmp

    Filesize

    1.1MB

  • memory/5964-23-0x0000000013140000-0x0000000013256000-memory.dmp

    Filesize

    1.1MB