Analysis

  • max time kernel
    150s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20241023-en
  • resource tags

    arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
  • submitted
    11/12/2024, 11:20

General

  • Target

    e13b4122e9fe0b01964fc5c281faca9c_JaffaCakes118.exe

  • Size

    760KB

  • MD5

    e13b4122e9fe0b01964fc5c281faca9c

  • SHA1

    c7f59eb73110a5fb23d30184f58d56e550f4a01a

  • SHA256

    a9b06c582a33077f022a158526d7b740b45634df15e049d85c484283585be2f7

  • SHA512

    4708bc369a4f4d4ce8f61ca23fe82aebd6c6bd9a62a7f22747556c87b1cda3c8bf60e437181ac2bbdb3b1c5eccef95395ab0397ab4c5ce2545f5592104232e8b

  • SSDEEP

    12288:B3OpvNW4a76S/Ddon/m09bbYlIaaMcE2YGhq3vo1RnfAvIESJgoE26yc/Rmr:dOA4aWNn/m09fKIaaBEtWq3A1Ov8JgbY

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

darkcomat.no-ip.biz:64444

Mutex

DC_MUTEX-C273N2N

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    eV70zLgXTwTa

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • 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
  • Disables Task Manager via registry modification
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Windows security modification 2 TTPs 2 IoCs
  • Adds Run key to start application 2 TTPs 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 3 IoCs

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

  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 27 IoCs
  • System policy modification 1 TTPs 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e13b4122e9fe0b01964fc5c281faca9c_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\e13b4122e9fe0b01964fc5c281faca9c_JaffaCakes118.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Loads dropped DLL
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1736
    • C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
      "C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe"
      2⤵
      • Modifies firewall policy service
      • Modifies security service
      • Windows security bypass
      • Disables RegEdit via registry modification
      • Executes dropped EXE
      • Windows security modification
      • 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:2008
      • C:\Windows\SysWOW64\notepad.exe
        notepad
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2440

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe

    Filesize

    760KB

    MD5

    e13b4122e9fe0b01964fc5c281faca9c

    SHA1

    c7f59eb73110a5fb23d30184f58d56e550f4a01a

    SHA256

    a9b06c582a33077f022a158526d7b740b45634df15e049d85c484283585be2f7

    SHA512

    4708bc369a4f4d4ce8f61ca23fe82aebd6c6bd9a62a7f22747556c87b1cda3c8bf60e437181ac2bbdb3b1c5eccef95395ab0397ab4c5ce2545f5592104232e8b

  • memory/1736-51-0x0000000000400000-0x00000000004CD000-memory.dmp

    Filesize

    820KB

  • memory/1736-0-0x0000000000260000-0x0000000000261000-memory.dmp

    Filesize

    4KB

  • memory/2008-55-0x0000000000400000-0x00000000004CD000-memory.dmp

    Filesize

    820KB

  • memory/2008-57-0x0000000000400000-0x00000000004CD000-memory.dmp

    Filesize

    820KB

  • memory/2008-52-0x0000000000400000-0x00000000004CD000-memory.dmp

    Filesize

    820KB

  • memory/2008-53-0x0000000000400000-0x00000000004CD000-memory.dmp

    Filesize

    820KB

  • memory/2008-54-0x0000000000400000-0x00000000004CD000-memory.dmp

    Filesize

    820KB

  • memory/2008-65-0x0000000000400000-0x00000000004CD000-memory.dmp

    Filesize

    820KB

  • memory/2008-56-0x0000000000400000-0x00000000004CD000-memory.dmp

    Filesize

    820KB

  • memory/2008-64-0x0000000000400000-0x00000000004CD000-memory.dmp

    Filesize

    820KB

  • memory/2008-58-0x0000000000400000-0x00000000004CD000-memory.dmp

    Filesize

    820KB

  • memory/2008-59-0x0000000000400000-0x00000000004CD000-memory.dmp

    Filesize

    820KB

  • memory/2008-60-0x0000000000400000-0x00000000004CD000-memory.dmp

    Filesize

    820KB

  • memory/2008-61-0x0000000000400000-0x00000000004CD000-memory.dmp

    Filesize

    820KB

  • memory/2008-62-0x0000000000400000-0x00000000004CD000-memory.dmp

    Filesize

    820KB

  • memory/2008-63-0x0000000000400000-0x00000000004CD000-memory.dmp

    Filesize

    820KB

  • memory/2440-50-0x00000000001E0000-0x00000000001E1000-memory.dmp

    Filesize

    4KB

  • memory/2440-12-0x0000000000080000-0x0000000000081000-memory.dmp

    Filesize

    4KB