Analysis

  • max time kernel
    150s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-01-2025 19:10

General

  • Target

    JaffaCakes118_6ee5e5fa6edc14543aaa4042e157c16b.exe

  • Size

    5.6MB

  • MD5

    6ee5e5fa6edc14543aaa4042e157c16b

  • SHA1

    a127e133ba348a900b8fe03c6559caaf44f5cc0d

  • SHA256

    f30327b72bed055f5db63a2f91399bdc58f604ef6783f0ac63ae1255cdbe4a78

  • SHA512

    b7a5e223a0becfa468e2c1a4b8c22d2d11ebd241e4d498994d60e143c776f9d3bfdf8b734453e21ebec7cbffac77c2f4d35e85fa37b20af692aba15f8829c01f

  • SSDEEP

    98304:tGT1UbpwmSMM8WqZxi6bvXhHNPcN9RcbqL84MqvozfXzw0N:tGVoNLXhHFIPYqw/qvozfXzw0N

Malware Config

Extracted

Family

darkcomet

Botnet

Vectim

C2

leader.no-ip.org:1604

hiden-3.no-ip.org:1604

Mutex

DC_MUTEX-2HP4MZW

Attributes
  • InstallPath

    AppData\explorer.exe

  • gencode

    xjjHUPgowC9o

  • install

    true

  • offline_keylogger

    true

  • password

    987654321

  • persistence

    true

  • reg_key

    MicroUpdate

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 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
  • Sets file to hidden 1 TTPs 2 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

  • Checks computer location settings 2 TTPs 1 IoCs

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

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

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

  • System Location Discovery: System Language Discovery 1 TTPs 10 IoCs

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

  • Modifies registry class 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • System policy modification 1 TTPs 3 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6ee5e5fa6edc14543aaa4042e157c16b.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6ee5e5fa6edc14543aaa4042e157c16b.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3636
    • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6ee5e5fa6edc14543aaa4042e157c16b.exe
      C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6ee5e5fa6edc14543aaa4042e157c16b.exe
      2⤵
      • Modifies WinLogon for persistence
      • Checks computer location settings
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:208
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6ee5e5fa6edc14543aaa4042e157c16b.exe" +s +h
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3060
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6ee5e5fa6edc14543aaa4042e157c16b.exe" +s +h
          4⤵
          • Sets file to hidden
          • System Location Discovery: System Language Discovery
          • Views/modifies file attributes
          PID:1984
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1960
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
          4⤵
          • Sets file to hidden
          • System Location Discovery: System Language Discovery
          • Views/modifies file attributes
          PID:1532
      • C:\Windows\SysWOW64\notepad.exe
        notepad
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4832
      • C:\ProgramData\Microsoft\Windows\Start Menu\Programs\AppData\explorer.exe
        "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\AppData\explorer.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2788
        • C:\ProgramData\Microsoft\Windows\Start Menu\Programs\AppData\explorer.exe
          "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\AppData\explorer.exe"
          4⤵
          • Modifies firewall policy service
          • Modifies security service
          • Windows security bypass
          • Disables RegEdit via registry modification
          • Executes dropped EXE
          • Windows security modification
          • Adds Run key to start application
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          • System policy modification
          PID:1496
          • C:\Windows\SysWOW64\notepad.exe
            notepad
            5⤵
            • System Location Discovery: System Language Discovery
            PID:452

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\Microsoft\Windows\Start Menu\Programs\AppData\explorer.exe

    Filesize

    5.6MB

    MD5

    6ee5e5fa6edc14543aaa4042e157c16b

    SHA1

    a127e133ba348a900b8fe03c6559caaf44f5cc0d

    SHA256

    f30327b72bed055f5db63a2f91399bdc58f604ef6783f0ac63ae1255cdbe4a78

    SHA512

    b7a5e223a0becfa468e2c1a4b8c22d2d11ebd241e4d498994d60e143c776f9d3bfdf8b734453e21ebec7cbffac77c2f4d35e85fa37b20af692aba15f8829c01f

  • memory/208-3-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/208-8-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/208-11-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/208-12-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/208-13-0x0000000000560000-0x0000000000561000-memory.dmp

    Filesize

    4KB

  • memory/208-50-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/208-1-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/208-9-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/208-5-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/208-2-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/208-7-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/452-63-0x00000000007E0000-0x00000000007E1000-memory.dmp

    Filesize

    4KB

  • memory/1496-62-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/1496-89-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/1496-61-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/1496-102-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/1496-65-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/1496-64-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/1496-99-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/1496-96-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/1496-92-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/1496-69-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/1496-72-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/1496-75-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/1496-78-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/1496-81-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/1496-84-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/1496-87-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2788-67-0x0000000000400000-0x00000000009A3000-memory.dmp

    Filesize

    5.6MB

  • memory/3636-51-0x0000000002740000-0x0000000002741000-memory.dmp

    Filesize

    4KB

  • memory/3636-66-0x0000000000400000-0x00000000009A3000-memory.dmp

    Filesize

    5.6MB

  • memory/3636-0-0x0000000002740000-0x0000000002741000-memory.dmp

    Filesize

    4KB

  • memory/4832-17-0x0000000000D00000-0x0000000000D01000-memory.dmp

    Filesize

    4KB