Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20250207-en
  • resource tags

    arch:x64arch:x86image:win7-20250207-enlocale:en-usos:windows7-x64system
  • submitted
    16/02/2025, 03:44

General

  • Target

    JaffaCakes118_ff279548cab424e57cda1f37d6572365.exe

  • Size

    418KB

  • MD5

    ff279548cab424e57cda1f37d6572365

  • SHA1

    07e7a3d79b361650da06101b56a0bf896ce83aac

  • SHA256

    4fc11d9c75ff22a30cd8f4d7464f6b9382e1a7be6f73708e0a5b120b7f1a4d60

  • SHA512

    4919913eab6e81ebdb6b948d4c957cc7ab9e767321f10e648a77c0d8c29f5b939c1aabec8597d5bce9bf3d55c950b82c7f094fd22d15b4b1663a99869fd012c9

  • SSDEEP

    6144:sTUcONNgYccDj1n7FInjR4FOccSB140AlxgnB7kI7UVAiXEE3VJoZSLd2EJ:sTPYccP1n7Fwt4cccI2PSVrkLUE

Malware Config

Extracted

Family

darkcomet

Botnet

I4I - Inception

C2

r3c0n.no-ip.org:2744

Mutex

DC_MUTEX-KL0WYVV

Attributes
  • InstallPath

    Microsoft\jusched.exe

  • gencode

    w./4G9G6�lKU

  • install

    true

  • offline_keylogger

    true

  • password

    daniel1994

  • persistence

    true

  • reg_key

    Windows Registry Editor

rc4.plain

Signatures

  • Darkcomet

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

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

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

  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • UPX packed file 32 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 6 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
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ff279548cab424e57cda1f37d6572365.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ff279548cab424e57cda1f37d6572365.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1968
    • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ff279548cab424e57cda1f37d6572365.exe
      C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ff279548cab424e57cda1f37d6572365.exe
      2⤵
      • Modifies WinLogon for persistence
      • Checks BIOS information in registry
      • Loads dropped DLL
      • Adds Run key to start application
      • 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:2328
      • C:\Users\Admin\AppData\Roaming\Microsoft\jusched.exe
        "C:\Users\Admin\AppData\Roaming\Microsoft\jusched.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2304
        • C:\Users\Admin\AppData\Roaming\Microsoft\jusched.exe
          C:\Users\Admin\AppData\Roaming\Microsoft\jusched.exe
          4⤵
          • Checks BIOS information in registry
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Checks processor information in registry
          • Enumerates system info in registry
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:2528
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\_dcsc_.bat" "
        3⤵
        • Deletes itself
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2952
        • C:\Windows\SysWOW64\PING.EXE
          ping 127.0.0.1 -n 2
          4⤵
          • System Location Discovery: System Language Discovery
          • System Network Configuration Discovery: Internet Connection Discovery
          • Runs ping.exe
          PID:2316

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    119B

    MD5

    6a5850832c91c59a98674f31968053c1

    SHA1

    fa69be6981ad8fbb37382bf009732e2c0d0e2c4f

    SHA256

    8d1e9d7da417fa8cc01095f4b7350546075872538f5c90b040a853f854a4dd79

    SHA512

    b940aca30fc9c7617aad3c67e809b7720ef7f5fb13b13499a41b22fc9e752ea2a6c25964cdb05f7bff1fb0f92588fd4ea7ea93e56da36d59294ba7da09bf8663

  • C:\Users\Admin\AppData\Roaming\Microsoft\jusched.exe

    Filesize

    418KB

    MD5

    ff279548cab424e57cda1f37d6572365

    SHA1

    07e7a3d79b361650da06101b56a0bf896ce83aac

    SHA256

    4fc11d9c75ff22a30cd8f4d7464f6b9382e1a7be6f73708e0a5b120b7f1a4d60

    SHA512

    4919913eab6e81ebdb6b948d4c957cc7ab9e767321f10e648a77c0d8c29f5b939c1aabec8597d5bce9bf3d55c950b82c7f094fd22d15b4b1663a99869fd012c9

  • memory/1968-0-0x0000000000400000-0x000000000046C000-memory.dmp

    Filesize

    432KB

  • memory/1968-2-0x0000000000220000-0x000000000028C000-memory.dmp

    Filesize

    432KB

  • memory/1968-7-0x0000000000400000-0x000000000046C000-memory.dmp

    Filesize

    432KB

  • memory/2304-48-0x0000000000400000-0x000000000046C000-memory.dmp

    Filesize

    432KB

  • memory/2328-12-0x0000000000400000-0x00000000004C6000-memory.dmp

    Filesize

    792KB

  • memory/2328-1-0x0000000000400000-0x00000000004C6000-memory.dmp

    Filesize

    792KB

  • memory/2328-6-0x0000000000400000-0x00000000004C6000-memory.dmp

    Filesize

    792KB

  • memory/2328-10-0x0000000000400000-0x00000000004C6000-memory.dmp

    Filesize

    792KB

  • memory/2328-5-0x0000000000400000-0x00000000004C6000-memory.dmp

    Filesize

    792KB

  • memory/2328-11-0x0000000000400000-0x00000000004C6000-memory.dmp

    Filesize

    792KB

  • memory/2328-13-0x00000000002F0000-0x00000000002F1000-memory.dmp

    Filesize

    4KB

  • memory/2328-14-0x0000000000400000-0x00000000004C6000-memory.dmp

    Filesize

    792KB

  • memory/2328-9-0x0000000000400000-0x00000000004C6000-memory.dmp

    Filesize

    792KB

  • memory/2328-26-0x0000000004060000-0x00000000040CC000-memory.dmp

    Filesize

    432KB

  • memory/2328-38-0x0000000000400000-0x00000000004C6000-memory.dmp

    Filesize

    792KB

  • memory/2328-8-0x0000000000400000-0x00000000004C6000-memory.dmp

    Filesize

    792KB

  • memory/2328-4-0x0000000000400000-0x00000000004C6000-memory.dmp

    Filesize

    792KB

  • memory/2528-55-0x0000000000400000-0x00000000004C6000-memory.dmp

    Filesize

    792KB

  • memory/2528-61-0x0000000000400000-0x00000000004C6000-memory.dmp

    Filesize

    792KB

  • memory/2528-52-0x0000000000400000-0x00000000004C6000-memory.dmp

    Filesize

    792KB

  • memory/2528-56-0x0000000000400000-0x00000000004C6000-memory.dmp

    Filesize

    792KB

  • memory/2528-51-0x0000000000400000-0x00000000004C6000-memory.dmp

    Filesize

    792KB

  • memory/2528-54-0x0000000000400000-0x00000000004C6000-memory.dmp

    Filesize

    792KB

  • memory/2528-53-0x0000000000400000-0x00000000004C6000-memory.dmp

    Filesize

    792KB

  • memory/2528-57-0x0000000000400000-0x00000000004C6000-memory.dmp

    Filesize

    792KB

  • memory/2528-58-0x0000000000400000-0x00000000004C6000-memory.dmp

    Filesize

    792KB

  • memory/2528-59-0x0000000000400000-0x00000000004C6000-memory.dmp

    Filesize

    792KB

  • memory/2528-60-0x0000000000400000-0x00000000004C6000-memory.dmp

    Filesize

    792KB

  • memory/2528-50-0x0000000000400000-0x00000000004C6000-memory.dmp

    Filesize

    792KB

  • memory/2528-62-0x0000000000400000-0x00000000004C6000-memory.dmp

    Filesize

    792KB

  • memory/2528-63-0x0000000000400000-0x00000000004C6000-memory.dmp

    Filesize

    792KB

  • memory/2528-64-0x0000000000400000-0x00000000004C6000-memory.dmp

    Filesize

    792KB

  • memory/2528-65-0x0000000000400000-0x00000000004C6000-memory.dmp

    Filesize

    792KB

  • memory/2528-66-0x0000000000400000-0x00000000004C6000-memory.dmp

    Filesize

    792KB

  • memory/2528-67-0x0000000000400000-0x00000000004C6000-memory.dmp

    Filesize

    792KB

  • memory/2528-68-0x0000000000400000-0x00000000004C6000-memory.dmp

    Filesize

    792KB

  • memory/2528-69-0x0000000000400000-0x00000000004C6000-memory.dmp

    Filesize

    792KB

  • memory/2528-70-0x0000000000400000-0x00000000004C6000-memory.dmp

    Filesize

    792KB

  • memory/2528-71-0x0000000000400000-0x00000000004C6000-memory.dmp

    Filesize

    792KB