Analysis

  • max time kernel
    150s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-08-2024 22:55

General

  • Target

    83e0ddac12acdb27da50f5dced06226f_JaffaCakes118.exe

  • Size

    350KB

  • MD5

    83e0ddac12acdb27da50f5dced06226f

  • SHA1

    e3dd811dbc691b529b84fa9b6cc053f04373e217

  • SHA256

    61e7b3bb8058709bee55672ac85b66b083baeae7235d5016fcddeed5c6917db9

  • SHA512

    2bbbc70c1ad09b339cd060b0e33321f9d79c391cda58ba5e5d60078a66359c74de33cd1a6592122e4129102567c18ac9361ca046e4a914966cb1edf0ed1a15a9

  • SSDEEP

    6144:xBJVqu5jxRl+t6Ge0qw0kw9+Ks9a8/7z6lntXnZa0:xtqwjxRl+t6GfL7zcdng

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

abod12345.no-ip.info:999

Mutex

DC_MUTEX-VJQ8V8D

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    3VJFaguAC0JG

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • reg_key

    MicroUpdate

Signatures

  • Darkcomet

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

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • UPX packed file 18 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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 2 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 use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\83e0ddac12acdb27da50f5dced06226f_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\83e0ddac12acdb27da50f5dced06226f_JaffaCakes118.exe"
    1⤵
    • 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:2596
    • C:\Users\Admin\Desktop\MSDCSC\msdcsc.exe
      "C:\Users\Admin\Desktop\MSDCSC\msdcsc.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:4112

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\Desktop\MSDCSC\msdcsc.exe

    Filesize

    350KB

    MD5

    83e0ddac12acdb27da50f5dced06226f

    SHA1

    e3dd811dbc691b529b84fa9b6cc053f04373e217

    SHA256

    61e7b3bb8058709bee55672ac85b66b083baeae7235d5016fcddeed5c6917db9

    SHA512

    2bbbc70c1ad09b339cd060b0e33321f9d79c391cda58ba5e5d60078a66359c74de33cd1a6592122e4129102567c18ac9361ca046e4a914966cb1edf0ed1a15a9

  • memory/2596-63-0x0000000000400000-0x00000000004EB000-memory.dmp

    Filesize

    940KB

  • memory/2596-1-0x00000000022B0000-0x00000000022B1000-memory.dmp

    Filesize

    4KB

  • memory/2596-0-0x0000000000400000-0x00000000004EB000-memory.dmp

    Filesize

    940KB

  • memory/4112-69-0x0000000000400000-0x00000000004EB000-memory.dmp

    Filesize

    940KB

  • memory/4112-70-0x0000000000400000-0x00000000004EB000-memory.dmp

    Filesize

    940KB

  • memory/4112-65-0x0000000000400000-0x00000000004EB000-memory.dmp

    Filesize

    940KB

  • memory/4112-66-0x0000000000400000-0x00000000004EB000-memory.dmp

    Filesize

    940KB

  • memory/4112-67-0x0000000000400000-0x00000000004EB000-memory.dmp

    Filesize

    940KB

  • memory/4112-68-0x0000000000400000-0x00000000004EB000-memory.dmp

    Filesize

    940KB

  • memory/4112-62-0x00000000006A0000-0x00000000006A1000-memory.dmp

    Filesize

    4KB

  • memory/4112-64-0x0000000000400000-0x00000000004EB000-memory.dmp

    Filesize

    940KB

  • memory/4112-71-0x0000000000400000-0x00000000004EB000-memory.dmp

    Filesize

    940KB

  • memory/4112-72-0x0000000000400000-0x00000000004EB000-memory.dmp

    Filesize

    940KB

  • memory/4112-73-0x0000000000400000-0x00000000004EB000-memory.dmp

    Filesize

    940KB

  • memory/4112-74-0x0000000000400000-0x00000000004EB000-memory.dmp

    Filesize

    940KB

  • memory/4112-75-0x0000000000400000-0x00000000004EB000-memory.dmp

    Filesize

    940KB

  • memory/4112-76-0x0000000000400000-0x00000000004EB000-memory.dmp

    Filesize

    940KB

  • memory/4112-77-0x0000000000400000-0x00000000004EB000-memory.dmp

    Filesize

    940KB

  • memory/4112-78-0x0000000000400000-0x00000000004EB000-memory.dmp

    Filesize

    940KB