Analysis

  • max time kernel
    150s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    29-11-2024 18:25

General

  • Target

    b30d655aefc52618b2a7e6e3e13de11f_JaffaCakes118.exe

  • Size

    894KB

  • MD5

    b30d655aefc52618b2a7e6e3e13de11f

  • SHA1

    4ed6181c465ee67cc86af3abbfd8f98aa4be009b

  • SHA256

    131b8c954a6dda5275a42067ad1c60e71b0c9c192281eb81b11ef68865f08a75

  • SHA512

    58909a6ecb983ef4bcfff1598986a03cacc157f0b1e83d5222fa9cc5afdb2b214cde9ce04af3f655c1f28c7860a2b967df326c655459e7d331a5d3919f51272f

  • SSDEEP

    12288:89HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hK3cwgBb:QZ1xuVVjfFoynPaVBUR8f+kN10EBvv

Malware Config

Extracted

Family

darkcomet

Botnet

windowscvtrell

C2

anonymedeskype81.zapto.org:1500

Mutex

DC_MUTEX-BU1D65U

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    2HVjF5Bcnmu5

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • reg_key

    windowscvtrell

Extracted

Family

latentbot

C2

anonymedeskype81.zapto.org

Signatures

  • Darkcomet

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

  • Darkcomet family
  • LatentBot

    Modular trojan written in Delphi which has been in-the-wild since 2013.

  • Latentbot family
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 1 IoCs
  • Sets file to hidden 1 TTPs 2 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Windows security modification 2 TTPs 1 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 8 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 61 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b30d655aefc52618b2a7e6e3e13de11f_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\b30d655aefc52618b2a7e6e3e13de11f_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:2528
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\b30d655aefc52618b2a7e6e3e13de11f_JaffaCakes118.exe" +s +h
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1536
      • C:\Windows\SysWOW64\attrib.exe
        attrib "C:\Users\Admin\AppData\Local\Temp\b30d655aefc52618b2a7e6e3e13de11f_JaffaCakes118.exe" +s +h
        3⤵
        • Sets file to hidden
        • System Location Discovery: System Language Discovery
        • Views/modifies file attributes
        PID:2684
    • 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:1400
      • 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:2676
    • C:\Windows\SysWOW64\notepad.exe
      notepad
      2⤵
      • Deletes itself
      • System Location Discovery: System Language Discovery
      PID:2452
    • C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\msdcsc.exe
      "C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\msdcsc.exe"
      2⤵
      • Windows security bypass
      • 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
      PID:2716
      • C:\Windows\SysWOW64\notepad.exe
        notepad
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2768

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\msdcsc.exe

    Filesize

    894KB

    MD5

    b30d655aefc52618b2a7e6e3e13de11f

    SHA1

    4ed6181c465ee67cc86af3abbfd8f98aa4be009b

    SHA256

    131b8c954a6dda5275a42067ad1c60e71b0c9c192281eb81b11ef68865f08a75

    SHA512

    58909a6ecb983ef4bcfff1598986a03cacc157f0b1e83d5222fa9cc5afdb2b214cde9ce04af3f655c1f28c7860a2b967df326c655459e7d331a5d3919f51272f

  • memory/2452-18-0x0000000000190000-0x0000000000191000-memory.dmp

    Filesize

    4KB

  • memory/2452-3-0x0000000000080000-0x0000000000081000-memory.dmp

    Filesize

    4KB

  • memory/2528-67-0x0000000000400000-0x00000000004ED000-memory.dmp

    Filesize

    948KB

  • memory/2528-0-0x00000000001F0000-0x00000000001F1000-memory.dmp

    Filesize

    4KB

  • memory/2716-69-0x0000000000400000-0x00000000004ED000-memory.dmp

    Filesize

    948KB

  • memory/2716-70-0x0000000000400000-0x00000000004ED000-memory.dmp

    Filesize

    948KB

  • memory/2716-71-0x0000000000400000-0x00000000004ED000-memory.dmp

    Filesize

    948KB

  • memory/2716-72-0x0000000000400000-0x00000000004ED000-memory.dmp

    Filesize

    948KB

  • memory/2716-73-0x0000000000400000-0x00000000004ED000-memory.dmp

    Filesize

    948KB

  • memory/2716-74-0x0000000000400000-0x00000000004ED000-memory.dmp

    Filesize

    948KB

  • memory/2716-75-0x0000000000400000-0x00000000004ED000-memory.dmp

    Filesize

    948KB

  • memory/2768-66-0x0000000000220000-0x0000000000221000-memory.dmp

    Filesize

    4KB