Analysis

  • max time kernel
    134s
  • max time network
    157s
  • 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, 19:02

General

  • Target

    JaffaCakes118_93869c018a3ede86220ff1f99340b5e1.exe

  • Size

    550KB

  • MD5

    93869c018a3ede86220ff1f99340b5e1

  • SHA1

    046cae802afe26f8b52ad5c26bf7b585b7fed288

  • SHA256

    5e4c596fc043671c97a3dd9b8c52e577df180ccfcb43c6b4832b866fd4bc25d8

  • SHA512

    7689b950d1fc92fe79913cbd97f8dae5c8c09feb9f548cb5712a1b9e73ab8dd59a22337f9f29cc45f7910ee7e19086714e2c0ad5bc31578e7fe4c70241ed0de2

  • SSDEEP

    12288:5HUJ4HzMCu3TZHXsHPvGuFNosu1FV9Za9WbSOAp69w:50JuRujtChos0SPp6a

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

86.120.144.30:1604

Mutex

DC_MUTEX-CU201X0

Attributes
  • gencode

    E4J3J=HuBX8S

  • install

    false

  • offline_keylogger

    true

  • persistence

    false

rc4.plain

Signatures

  • Darkcomet

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

  • Darkcomet family
  • Modifies firewall policy service 3 TTPs 3 IoCs
  • Modifies security service 2 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 2 IoCs
  • Disables RegEdit via registry modification 1 IoCs
  • Checks BIOS information in registry 2 TTPs 1 IoCs

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

  • Windows security modification 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • 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 4 IoCs

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

  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 25 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • System policy modification 1 TTPs 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_93869c018a3ede86220ff1f99340b5e1.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_93869c018a3ede86220ff1f99340b5e1.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3340
    • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_93869c018a3ede86220ff1f99340b5e1.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_93869c018a3ede86220ff1f99340b5e1.exe"
      2⤵
      • Modifies firewall policy service
      • Modifies security service
      • Windows security bypass
      • Disables RegEdit via registry modification
      • Checks BIOS information in registry
      • 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
      • System policy modification
      PID:3784

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/3340-0-0x0000000074D82000-0x0000000074D83000-memory.dmp

    Filesize

    4KB

  • memory/3340-1-0x0000000074D80000-0x0000000075331000-memory.dmp

    Filesize

    5.7MB

  • memory/3340-2-0x0000000074D80000-0x0000000075331000-memory.dmp

    Filesize

    5.7MB

  • memory/3340-14-0x0000000074D80000-0x0000000075331000-memory.dmp

    Filesize

    5.7MB

  • memory/3784-7-0x0000000000400000-0x00000000004D9000-memory.dmp

    Filesize

    868KB

  • memory/3784-6-0x0000000000400000-0x00000000004D9000-memory.dmp

    Filesize

    868KB

  • memory/3784-4-0x0000000000400000-0x00000000004D9000-memory.dmp

    Filesize

    868KB

  • memory/3784-9-0x0000000000400000-0x00000000004D9000-memory.dmp

    Filesize

    868KB

  • memory/3784-13-0x0000000000400000-0x00000000004D9000-memory.dmp

    Filesize

    868KB

  • memory/3784-12-0x0000000000400000-0x00000000004D9000-memory.dmp

    Filesize

    868KB

  • memory/3784-3-0x0000000000400000-0x00000000004D9000-memory.dmp

    Filesize

    868KB

  • memory/3784-11-0x0000000000400000-0x00000000004D9000-memory.dmp

    Filesize

    868KB

  • memory/3784-10-0x0000000000400000-0x00000000004D9000-memory.dmp

    Filesize

    868KB

  • memory/3784-8-0x00000000007C0000-0x00000000007C1000-memory.dmp

    Filesize

    4KB

  • memory/3784-15-0x0000000000400000-0x00000000004D9000-memory.dmp

    Filesize

    868KB