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Overview

overview

10

Static

static

10

JaffaCakes...b0.exe

windows7-x64

10

JaffaCakes...b0.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/01/2025, 05:02

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General

  • Target

    JaffaCakes118_481941160ae79c2c2b1dc4e7b0ea03b0.exe

  • Size

    690KB

  • MD5

    481941160ae79c2c2b1dc4e7b0ea03b0

  • SHA1

    571fb0b36eaf8337d87616bd7ff32fcdd9bc1f8b

  • SHA256

    dc7076f7ba617070a45a95afa525081be04c16ded1891e9a7f9f9d62821bf92b

  • SHA512

    59c52738709a8b6ac27305c09d9263b401359e06febc06e3c40c300460b3cfe00b9a7e8996a5ed4d3013a9332d6759651ad05f7af31cd6cccd2970caa4fb3a63

  • SSDEEP

    12288:J9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hxd:TZ1xuVVjfFoynPaVBUR8f+kN10EBR

Score
10/10
darkcometessai modifdiscoveryevasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

essai modif

C2

64.251.22.13:1604

Mutex

DC_MUTEX-K52KM0N

Attributes
  • InstallPath

    msdcsc.exe

  • gencode

    PpkduD0BNJak

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    Microsoft

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
  • Modifies security service 2 TTPs 1 IoCs
    evasion
  • Windows security bypass 2 TTPs 1 IoCs
    evasiontrojan
  • Sets file to hidden 1 TTPs 2 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

    evasion
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Windows security modification 2 TTPs 1 IoCs
    evasiontrojan
  • Adds Run key to start application 2 TTPs 2 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 6 IoCs

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

    discovery
  • Modifies registry class 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs
  • System policy modification 1 TTPs 3 IoCs
    evasion
  • Views/modifies file attributes 1 TTPs 2 IoCs
    evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_481941160ae79c2c2b1dc4e7b0ea03b0.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_481941160ae79c2c2b1dc4e7b0ea03b0.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:4912
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_481941160ae79c2c2b1dc4e7b0ea03b0.exe" +s +h
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3272
      • C:\Windows\SysWOW64\attrib.exe
        attrib "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_481941160ae79c2c2b1dc4e7b0ea03b0.exe" +s +h
        3⤵
        • Sets file to hidden
        • System Location Discovery: System Language Discovery
        • Views/modifies file attributes
        PID:5044
    • 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:3548
      • 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:316
    • C:\msdcsc.exe
      "C:\msdcsc.exe"
      2⤵
      • Modifies security service
      • Windows security bypass
      • Executes dropped EXE
      • Windows security modification
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • System policy modification
      PID:3108

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Defense Evasion

Hide Artifacts

2
T1564

Hidden Files and Directories

2
T1564.001

Impair Defenses

2
T1562

Disable or Modify Tools

2
T1562.001

Modify Registry

6
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

  • C:\msdcsc.exe
    Filesize

    690KB

    MD5

    481941160ae79c2c2b1dc4e7b0ea03b0

    SHA1

    571fb0b36eaf8337d87616bd7ff32fcdd9bc1f8b

    SHA256

    dc7076f7ba617070a45a95afa525081be04c16ded1891e9a7f9f9d62821bf92b

    SHA512

    59c52738709a8b6ac27305c09d9263b401359e06febc06e3c40c300460b3cfe00b9a7e8996a5ed4d3013a9332d6759651ad05f7af31cd6cccd2970caa4fb3a63

    Download Submit

  • memory/3108-62-0x00000000006C0000-0x00000000006C1000-memory.dmp

    Filesize

    4KB

    Download

  • memory/3108-64-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

    Download

  • memory/3108-66-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

    Download

  • memory/4912-0-0x0000000002280000-0x0000000002281000-memory.dmp

    Filesize

    4KB

    Download

  • memory/4912-63-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

    Download