Overview

overview

10

Static

static

3

JaffaCakes...18.exe

windows7-x64

10

JaffaCakes...18.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    17/03/2025, 03:54

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General

  • Target

    JaffaCakes118_7cc8c2f33bc298c9f83d2d32742c2018.exe

  • Size

    869KB

  • MD5

    7cc8c2f33bc298c9f83d2d32742c2018

  • SHA1

    075a07d76f3a4489f5f07a9f724ef230ad249110

  • SHA256

    451a02b69262853fb285e4ce0a07e13cc48a161ef84634ab38f27eef44974ad3

  • SHA512

    56bb6e7a62dc3a1d6bd192d53529f7b620968209b2f9ba8a905deb04f977476ab41285ac25d18a610e11d4b0e2c42151ff94bb75db0e0fe57d43b46d5f57725e

  • SSDEEP

    24576:FNlEmHpqig4M+Ul9EXypsOjPxIQpnG1Pcr6SN74:FNlEmJ0z7lKCpzjuQFG5gLNU

Score
10/10
darkcometguest16discoverypersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

dudu2011.no-ip.org:1604

Mutex

DC_MUTEX-F54S21D

Attributes
  • InstallPath

    Windupdt\winupdate.exe

  • gencode

    a5KD-sAPLHGv

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    winupdater

rc4.plain

Signatures

  • Darkcomet

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

    trojanratdarkcomet
  • Darkcomet family
    darkcomet
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
    persistence
  • Checks BIOS information in registry 2 TTPs 1 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 5 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • 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.

    discovery
  • Checks processor information in registry 2 TTPs 4 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 23 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7cc8c2f33bc298c9f83d2d32742c2018.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7cc8c2f33bc298c9f83d2d32742c2018.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Checks BIOS information in registry
    • Loads dropped DLL
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2248
    • C:\Users\Admin\AppData\Local\Temp\REGISTRATOR.EXE
      "C:\Users\Admin\AppData\Local\Temp\REGISTRATOR.EXE"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:1924
    • C:\Windupdt\winupdate.exe
      "C:\Windupdt\winupdate.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:2172

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\jI82l\PCGWIN32.LI5
    Filesize

    2KB

    MD5

    8cc935116cdec92c1819cdac83de9952

    SHA1

    ae0ea47967b9e923bc03a2e441ea053c9acac6ff

    SHA256

    7a47ea0cf8b110e3a6d9049c4feb7ca4ff12b420343d9048addada32316e5352

    SHA512

    cd3efa3df5daeefec06b311bfcca0c79dd774786bf4728714136ca23137f9747db5b34ffbd55871350193d301003569ce791d2a86398654c4df1f8e9164971e4

    Download Submit

  • C:\ProgramData\jI82l\PCGWIN32.LI5
    Filesize

    2KB

    MD5

    7bc93ae3ff774abbd7b24959138822e3

    SHA1

    b2b678d623ab16cbc17ccbb338e0d669c9c334e7

    SHA256

    7785d34cc9fa6dce3ae47da7875aa4fc4e8264a3b488c989c4c3a50ec1171ae3

    SHA512

    dbdcdd02fd3f4d4f7a45745334036fdd45b983babc248af1354bcb155f23e100930048a0e060d26892f98ebd5a98336bde72c74e80dc297d2400221b4c179068

    Download Submit

  • \Users\Admin\AppData\Local\Temp\REGISTRATOR.EXE
    Filesize

    55KB

    MD5

    0a107bbf138aaac2daeac73cb56f1e00

    SHA1

    f69675daf2c67688036ec60cf8170bab993b67f7

    SHA256

    71894e21a2d7ecd52ed8ee06c8634b5565cbe2cd7ca16305772c00af3a4e7efb

    SHA512

    67c5a09d14f36d7ee2d84ede5442a6555e8ccddfc2f20ed3978a5d977d6a0467cb1c215a1ea92f4b7508029d1cd20a20a1c847e4f2e520fe9059ed4b18d16099

    Download Submit

  • \Windupdt\winupdate.exe
    Filesize

    869KB

    MD5

    7cc8c2f33bc298c9f83d2d32742c2018

    SHA1

    075a07d76f3a4489f5f07a9f724ef230ad249110

    SHA256

    451a02b69262853fb285e4ce0a07e13cc48a161ef84634ab38f27eef44974ad3

    SHA512

    56bb6e7a62dc3a1d6bd192d53529f7b620968209b2f9ba8a905deb04f977476ab41285ac25d18a610e11d4b0e2c42151ff94bb75db0e0fe57d43b46d5f57725e

    Download Submit

  • memory/2172-28-0x0000000000400000-0x00000000004E7000-memory.dmp

    Filesize

    924KB

    Download

  • memory/2172-35-0x0000000000230000-0x0000000000317000-memory.dmp

    Filesize

    924KB

    Download

  • memory/2172-48-0x0000000000400000-0x00000000004E7000-memory.dmp

    Filesize

    924KB

    Download

  • memory/2248-0-0x0000000000400000-0x00000000004E7000-memory.dmp

    Filesize

    924KB

    Download

  • memory/2248-12-0x0000000000370000-0x0000000000371000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2248-25-0x00000000042A0000-0x0000000004387000-memory.dmp

    Filesize

    924KB

    Download

  • memory/2248-31-0x0000000000400000-0x00000000004E7000-memory.dmp

    Filesize

    924KB

    Download