Analysis

  • max time kernel
    150s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/01/2025, 12:44

General

  • Target

    JaffaCakes118_0dbb6ef7a68ce7dc9010894aed7527ce.exe

  • Size

    380KB

  • MD5

    0dbb6ef7a68ce7dc9010894aed7527ce

  • SHA1

    66ecae1a4b3cd438c467dd629d677f7f058c8b9d

  • SHA256

    a44036993ff912ae1903077a19169358e16ad522c4c63421f95b21f8cc372721

  • SHA512

    73168e198ab106ffa97b93b205232fc553fefc4188c98e48a99634308ab6daa61683ac60a8f39c8f8acc3ad25c62b816dcb0e12fd4a827e0e6a97b4da07790bb

  • SSDEEP

    6144:Eo09S1sX1mQZnW8YYO5AnCo7+bzay9lzKQyHnUBbNBeciYW04N9v+t9:EoAS1sFmwYYO5ACo7+bzaybzFDRBecLB

Malware Config

Extracted

Family

darkcomet

Botnet

Sp-52F-xd-07

C2

xdemia.no-ip.org:1604

xdemia.no-ip.org:81

xdemia.no-ip.org:82

xdemia.no-ip.org:1705

xdemia.no-ip.org:53

Mutex

MUTEX-WM97N8X

Attributes
  • InstallPath

    Windows\svchost.exe

  • gencode

    dnSWjmFeW48u

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    svchost

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
  • 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
  • UPX packed file 29 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 9 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 3 IoCs
  • Suspicious use of WriteProcessMemory 53 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0dbb6ef7a68ce7dc9010894aed7527ce.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0dbb6ef7a68ce7dc9010894aed7527ce.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1956
    • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0dbb6ef7a68ce7dc9010894aed7527ce.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0dbb6ef7a68ce7dc9010894aed7527ce.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:3056
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0dbb6ef7a68ce7dc9010894aed7527ce.exe" +s +h
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4556
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0dbb6ef7a68ce7dc9010894aed7527ce.exe" +s +h
          4⤵
          • Sets file to hidden
          • System Location Discovery: System Language Discovery
          • Views/modifies file attributes
          PID:3692
      • 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:4036
        • 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:1816
      • C:\Users\Admin\AppData\Roaming\Windows\svchost.exe
        "C:\Users\Admin\AppData\Roaming\Windows\svchost.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:4516
        • C:\Users\Admin\AppData\Roaming\Windows\svchost.exe
          "C:\Users\Admin\AppData\Roaming\Windows\svchost.exe"
          4⤵
          • Modifies firewall policy service
          • Modifies security service
          • Windows security bypass
          • 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
          PID:2504
          • C:\Windows\SysWOW64\notepad.exe
            notepad
            5⤵
            • System Location Discovery: System Language Discovery
            PID:1520

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\Windows\svchost.exe

    Filesize

    380KB

    MD5

    0dbb6ef7a68ce7dc9010894aed7527ce

    SHA1

    66ecae1a4b3cd438c467dd629d677f7f058c8b9d

    SHA256

    a44036993ff912ae1903077a19169358e16ad522c4c63421f95b21f8cc372721

    SHA512

    73168e198ab106ffa97b93b205232fc553fefc4188c98e48a99634308ab6daa61683ac60a8f39c8f8acc3ad25c62b816dcb0e12fd4a827e0e6a97b4da07790bb

  • memory/1520-82-0x00000000008E0000-0x00000000008E1000-memory.dmp

    Filesize

    4KB

  • memory/2504-90-0x0000000000400000-0x00000000004B9000-memory.dmp

    Filesize

    740KB

  • memory/2504-93-0x0000000000400000-0x00000000004B9000-memory.dmp

    Filesize

    740KB

  • memory/2504-99-0x0000000000400000-0x00000000004B9000-memory.dmp

    Filesize

    740KB

  • memory/2504-98-0x0000000000400000-0x00000000004B9000-memory.dmp

    Filesize

    740KB

  • memory/2504-97-0x0000000000400000-0x00000000004B9000-memory.dmp

    Filesize

    740KB

  • memory/2504-96-0x0000000000400000-0x00000000004B9000-memory.dmp

    Filesize

    740KB

  • memory/2504-78-0x0000000000400000-0x00000000004B9000-memory.dmp

    Filesize

    740KB

  • memory/2504-79-0x0000000000400000-0x00000000004B9000-memory.dmp

    Filesize

    740KB

  • memory/2504-77-0x0000000000400000-0x00000000004B9000-memory.dmp

    Filesize

    740KB

  • memory/2504-81-0x0000000000400000-0x00000000004B9000-memory.dmp

    Filesize

    740KB

  • memory/2504-84-0x0000000000400000-0x00000000004B9000-memory.dmp

    Filesize

    740KB

  • memory/2504-83-0x0000000000400000-0x00000000004B9000-memory.dmp

    Filesize

    740KB

  • memory/2504-95-0x0000000000400000-0x00000000004B9000-memory.dmp

    Filesize

    740KB

  • memory/2504-80-0x0000000000400000-0x00000000004B9000-memory.dmp

    Filesize

    740KB

  • memory/2504-94-0x0000000000400000-0x00000000004B9000-memory.dmp

    Filesize

    740KB

  • memory/2504-87-0x0000000000400000-0x00000000004B9000-memory.dmp

    Filesize

    740KB

  • memory/2504-85-0x0000000000400000-0x00000000004B9000-memory.dmp

    Filesize

    740KB

  • memory/2504-88-0x0000000000400000-0x00000000004B9000-memory.dmp

    Filesize

    740KB

  • memory/2504-89-0x0000000000400000-0x00000000004B9000-memory.dmp

    Filesize

    740KB

  • memory/2504-86-0x0000000000400000-0x00000000004B9000-memory.dmp

    Filesize

    740KB

  • memory/2504-91-0x0000000000400000-0x00000000004B9000-memory.dmp

    Filesize

    740KB

  • memory/2504-92-0x0000000000400000-0x00000000004B9000-memory.dmp

    Filesize

    740KB

  • memory/3056-2-0x0000000000400000-0x00000000004B9000-memory.dmp

    Filesize

    740KB

  • memory/3056-6-0x0000000000400000-0x00000000004B9000-memory.dmp

    Filesize

    740KB

  • memory/3056-4-0x0000000000400000-0x00000000004B9000-memory.dmp

    Filesize

    740KB

  • memory/3056-73-0x0000000000400000-0x00000000004B9000-memory.dmp

    Filesize

    740KB

  • memory/3056-5-0x0000000000400000-0x00000000004B9000-memory.dmp

    Filesize

    740KB

  • memory/3056-8-0x0000000000400000-0x00000000004B9000-memory.dmp

    Filesize

    740KB

  • memory/3056-7-0x0000000000400000-0x00000000004B9000-memory.dmp

    Filesize

    740KB