Overview

overview

10

Static

static

3

JaffaCakes...52.exe

windows7-x64

10

JaffaCakes...52.exe

windows10-2004-x64

10

Sharing

Copy URL
Twitter E-mail

General

  • Target

    JaffaCakes118_ea8b87801bb8b0f57c091264a1e92152

  • Size

    691KB

  • Sample

    250211-1jf3asspbr

  • MD5

    ea8b87801bb8b0f57c091264a1e92152

  • SHA1

    31a8d44f2babcf54dcc64335f69de3a5c543f4a7

  • SHA256

    66b290bd6e0e5c86115f902a522bcf392c74439ee501cfbcbcfd177c3b6e1ac0

  • SHA512

    640813afa9e4a60ea4ffca18751dab92f3512beb6d161e42646651b1fd7480ac91db4314ffafa1617b2237df28ef2a521371c9aedc014a3be457520f0c1cbacb

  • SSDEEP

    12288:vGfWXLjuau1NGcCd5VpJslcXIPbdH7Ojtfuju+YzXDy0dIhKpk:vRXLTu1Nudl6IIPbB7q

Score
10/10
darkcomethijackdefense_evasiondiscoverypersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Hijack

C2

abcdgl.mooo.com:1604

winrarsfx.linkpc.net:1604

glhacker.zapto.org:1604

winrarsfx.zapto.org:1604
Mutex

DC_MUTEX-7HFL2F5

Attributes
  • InstallPath

    Microsoft\msdcsc.exe

  • gencode

    BwrRwkSkXJa3

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

rc4.plain

Extracted

Family

darkcomet

Attributes
  • gencode

  • install

    false

  • offline_keylogger

    false

  • persistence

    false

rc4.plain

Targets

    • Target

      JaffaCakes118_ea8b87801bb8b0f57c091264a1e92152

    • Size

      691KB

    • MD5

      ea8b87801bb8b0f57c091264a1e92152

    • SHA1

      31a8d44f2babcf54dcc64335f69de3a5c543f4a7

    • SHA256

      66b290bd6e0e5c86115f902a522bcf392c74439ee501cfbcbcfd177c3b6e1ac0

    • SHA512

      640813afa9e4a60ea4ffca18751dab92f3512beb6d161e42646651b1fd7480ac91db4314ffafa1617b2237df28ef2a521371c9aedc014a3be457520f0c1cbacb

    • SSDEEP

      12288:vGfWXLjuau1NGcCd5VpJslcXIPbdH7Ojtfuju+YzXDy0dIhKpk:vRXLTu1Nudl6IIPbB7q

    Score
    10/10
    darkcomethijackdefense_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

    • Downloads MZ/PE file

    • Sets file to hidden

      Modifies file attributes to stop it showing in Explorer etc.

      defense_evasion

    • Checks computer location settings

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

    • Deletes itself

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    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

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

1
T1562

Disable or Modify System Firewall

1
T1562.004

Modify Registry

3
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
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