Analysis

  • max time kernel
    149s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    02-01-2025 06:58

General

  • Target

    JaffaCakes118_6362d63c9c4c72682c59aa47678de600.exe

  • Size

    690KB

  • MD5

    6362d63c9c4c72682c59aa47678de600

  • SHA1

    ae701f9038fd4c579dbfd5c7ad759388b3924db3

  • SHA256

    d97683cdad0e427bea3e835be08c61924915dbac045ea3ad4fbd9c29f80b8112

  • SHA512

    33e2ea27b10f82eb210be3fa8407ddbeb028edba0a8ac306e85fcc7c0080671413db066f652770865cab622bef01fe8d06b2828e69264d4b2dc76c6d0fdcd7a4

  • SSDEEP

    12288:G9HMeUmcufrvA3kb445UEJ2jsWiD4EvFuu4cNgZhCiZKD/XdyFdh:iiBIGkbxqEcjsWiDxguehC2SQ

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

dezzanad.zapto.org:1604

Mutex

DC_MUTEX-FLNZPS6

Attributes
  • InstallPath

    MSDCSC\Updata.exe

  • gencode

    VNNz0USuNjjj

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • reg_key

    Update

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.

  • 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 6 IoCs

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

  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs
  • System policy modification 1 TTPs 3 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6362d63c9c4c72682c59aa47678de600.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6362d63c9c4c72682c59aa47678de600.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:2664
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6362d63c9c4c72682c59aa47678de600.exe" +s +h
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2896
      • C:\Windows\SysWOW64\attrib.exe
        attrib "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6362d63c9c4c72682c59aa47678de600.exe" +s +h
        3⤵
        • Sets file to hidden
        • System Location Discovery: System Language Discovery
        • Views/modifies file attributes
        PID:2224
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2884
      • C:\Windows\SysWOW64\attrib.exe
        attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
        3⤵
        • Sets file to hidden
        • System Location Discovery: System Language Discovery
        • Views/modifies file attributes
        PID:2528
    • C:\Users\Admin\Documents\MSDCSC\Updata.exe
      "C:\Users\Admin\Documents\MSDCSC\Updata.exe"
      2⤵
      • Modifies firewall policy service
      • Modifies security service
      • Windows security bypass
      • Executes dropped EXE
      • Windows security modification
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • System policy modification
      PID:2660

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\Documents\MSDCSC\Updata.exe

    Filesize

    690KB

    MD5

    6362d63c9c4c72682c59aa47678de600

    SHA1

    ae701f9038fd4c579dbfd5c7ad759388b3924db3

    SHA256

    d97683cdad0e427bea3e835be08c61924915dbac045ea3ad4fbd9c29f80b8112

    SHA512

    33e2ea27b10f82eb210be3fa8407ddbeb028edba0a8ac306e85fcc7c0080671413db066f652770865cab622bef01fe8d06b2828e69264d4b2dc76c6d0fdcd7a4

  • memory/2660-18-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2660-17-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2660-13-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2660-14-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2660-19-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2660-16-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2660-26-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2660-25-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2660-15-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2660-20-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2660-21-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2660-22-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2660-23-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2660-24-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2664-0-0x0000000000260000-0x0000000000261000-memory.dmp

    Filesize

    4KB

  • memory/2664-12-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB