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Overview

overview

10

Static

static

10

JaffaCakes...bf.exe

windows7-x64

10

JaffaCakes...bf.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    JaffaCakes118_725c97535899b28b78bfdf93a0e65abf

  • Size

    814KB

  • Sample

    250313-23lbssvwhw

  • MD5

    725c97535899b28b78bfdf93a0e65abf

  • SHA1

    492f43610cfe7ba2fcd8d6ef05ee7ce85e1ee330

  • SHA256

    9f73e18acffefb0bb5b42ee96af56e8828ef09a6a7ef25d55ddd6264ebdb5025

  • SHA512

    e55f8ba0c6ffb85290df8139107de7f839c7db61cb03b88421340a711d9f598ba95105b3ef0cd8776d4fa969cc60e00edfcc18bfebf0935600be9dda449ef181

  • SSDEEP

    12288:2aAchpWsuVtDnBsBDJIcynnC90levX4CuYf2D82T3s99+VHuNKGgx:nAEE3uBDhynCylQgi63O9+VuNS

Score
10/10
darkcometguest16defense_evasiondiscoverypersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

hammatov.no-ip.org:1604

Mutex

DC_MUTEX-F54S21D

Attributes
  • InstallPath

    Windupdt\winupdate.exe

  • gencode

    QgilUHdq8msD

  • install

    true

  • offline_keylogger

    false

  • persistence

    false

  • reg_key

    winupdater

rc4.plain

Targets

    • Target

      JaffaCakes118_725c97535899b28b78bfdf93a0e65abf

    • Size

      814KB

    • MD5

      725c97535899b28b78bfdf93a0e65abf

    • SHA1

      492f43610cfe7ba2fcd8d6ef05ee7ce85e1ee330

    • SHA256

      9f73e18acffefb0bb5b42ee96af56e8828ef09a6a7ef25d55ddd6264ebdb5025

    • SHA512

      e55f8ba0c6ffb85290df8139107de7f839c7db61cb03b88421340a711d9f598ba95105b3ef0cd8776d4fa969cc60e00edfcc18bfebf0935600be9dda449ef181

    • SSDEEP

      12288:2aAchpWsuVtDnBsBDJIcynnC90levX4CuYf2D82T3s99+VHuNKGgx:nAEE3uBDhynCylQgi63O9+VuNS

    Score
    10/10
    darkcometguest16defense_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

    • Modifies security service

      defense_evasion

    • Windows security bypass

      defense_evasiontrojan

    • Disables RegEdit via registry modification

      defense_evasion

    • Disables Task Manager via registry modification

      defense_evasion

    • 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

    • Loads dropped DLL

    • Windows security modification

      defense_evasiontrojan

    • Adds Run key to start application

      persistence
    behavioral1behavioral2

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

2
T1543

Windows Service

2
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

2
T1543

Windows Service

2
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

7
T1112

Credential Access

Discovery

Query Registry

4
T1012

System Information Discovery

5
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks