Overview

overview

10

Static

static

3

JaffaCakes...c6.exe

windows10-2004-x64

10

JaffaCakes...c6.exe

windows11-21h2-x64

10

Sharing

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General

  • Target

    JaffaCakes118_bc5e9d6c42c4a7a8f3e399628b35edc6

  • Size

    792KB

  • Sample

    250418-dzxnnasrx2

  • MD5

    bc5e9d6c42c4a7a8f3e399628b35edc6

  • SHA1

    89467555b70aa69a09f2a9b6068d851bc6da3730

  • SHA256

    37f71d92f06d6db3a5660d2029e0828277f5970942554372c0405eeb5daec278

  • SHA512

    f85ba3ccf4a76412a53d286b8dd6ab02feca4736c27e2b5a6ed6b158543bf5780ceef3c213613727f0b9ddeb267bb5ad1bb79fc70ecc5c2610c7b0ec9624d5ff

  • SSDEEP

    24576:XlvYrG9qagUztjgUVWdxfYEbKQZ87bqeA4L9j/A:eK9qagUO2wO7bXA4

Score
10/10
darkcometmooosedefense_evasiondiscoverypersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Mooose

C2

masha.zapto.org:1604

Mutex

DC_MUTEX-9HH2WSZ

Attributes
  • InstallPath

    Windupdt\winupdate.exe

  • gencode

    iUjv.BRt=lEN

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    winupdater

rc4.plain

Targets

    • Target

      JaffaCakes118_bc5e9d6c42c4a7a8f3e399628b35edc6

    • Size

      792KB

    • MD5

      bc5e9d6c42c4a7a8f3e399628b35edc6

    • SHA1

      89467555b70aa69a09f2a9b6068d851bc6da3730

    • SHA256

      37f71d92f06d6db3a5660d2029e0828277f5970942554372c0405eeb5daec278

    • SHA512

      f85ba3ccf4a76412a53d286b8dd6ab02feca4736c27e2b5a6ed6b158543bf5780ceef3c213613727f0b9ddeb267bb5ad1bb79fc70ecc5c2610c7b0ec9624d5ff

    • SSDEEP

      24576:XlvYrG9qagUztjgUVWdxfYEbKQZ87bqeA4L9j/A:eK9qagUO2wO7bXA4

    Score
    10/10
    darkcometmooosedefense_evasiondiscoverypersistencerattrojan

    • Darkcomet

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

      trojanratdarkcomet

    • Darkcomet family

      darkcomet

    • Modifies WinLogon for persistence

      persistence

    • Modifies firewall policy service

      defense_evasion

    • Windows security bypass

      defense_evasiontrojan

    • Checks BIOS information in registry

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

    • Checks computer location settings

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

    • Executes dropped EXE

    • Windows security modification

      defense_evasiontrojan

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

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

Impair Defenses

3
T1562

Disable or Modify System Firewall

1
T1562.004

Disable or Modify Tools

2
T1562.001

Modify Registry

5
T1112

Credential Access

Discovery

Query Registry

4
T1012

Remote System Discovery

1
T1018

System Information Discovery

5
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

System Network Configuration Discovery

1
T1016

Internet Connection Discovery

1
T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks