Overview

overview

10

Static

static

3

JaffaCakes...3e.exe

windows7-x64

10

JaffaCakes...3e.exe

windows10-2004-x64

10

Sharing

Copy URL
Twitter E-mail

General

  • Target

    JaffaCakes118_76820646e34735e5c96dc6a213721e3e

  • Size

    679KB

  • Sample

    250104-ahyb3stkal

  • MD5

    76820646e34735e5c96dc6a213721e3e

  • SHA1

    a686538a25ddbd0bd80034ccee2e2e81d16e8bf3

  • SHA256

    e350b3b114a4de8395368a5a333ce71a2037aaa9685eae8f0c946c2d461e5f9f

  • SHA512

    5ee7dbd8f9e1aa1b68fe5005d35a6e7a1ec064da1baf695a8459660a5d49943acf7d208be2646dd2d8a7a20b0fe57932db33484e87b7ea28180a46dbaff01f7b

  • SSDEEP

    12288:24av+00DAsSQvZ+6pocqQIcyvjSiyjRCmCwrLD+BEsK4HY9YNVzYKj86syB05Nl:24ZDAGv/ocqQIVjyjTrL6uCvNpYOcl

Score
10/10
darkcometbootkitdiscoveryevasionpersistencerattrojan

Malware Config

Targets

    • Target

      JaffaCakes118_76820646e34735e5c96dc6a213721e3e

    • Size

      679KB

    • MD5

      76820646e34735e5c96dc6a213721e3e

    • SHA1

      a686538a25ddbd0bd80034ccee2e2e81d16e8bf3

    • SHA256

      e350b3b114a4de8395368a5a333ce71a2037aaa9685eae8f0c946c2d461e5f9f

    • SHA512

      5ee7dbd8f9e1aa1b68fe5005d35a6e7a1ec064da1baf695a8459660a5d49943acf7d208be2646dd2d8a7a20b0fe57932db33484e87b7ea28180a46dbaff01f7b

    • SSDEEP

      12288:24av+00DAsSQvZ+6pocqQIcyvjSiyjRCmCwrLD+BEsK4HY9YNVzYKj86syB05Nl:24ZDAGv/ocqQIVjyjTrL6uCvNpYOcl

    Score
    10/10
    darkcometbootkitdiscoveryevasionpersistencerattrojan

    • Darkcomet

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

      trojanratdarkcomet

    • Darkcomet family

      darkcomet

    • Modifies WinLogon for persistence

      persistence

    • Sets file to hidden

      Modifies file attributes to stop it showing in Explorer etc.

      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

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

      bootkitpersistence

    • 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

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Defense Evasion

Hide Artifacts

2
T1564

Hidden Files and Directories

2
T1564.001

Modify Registry

2
T1112

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Credential Access

Discovery

Query Registry

1
T1012

Remote System Discovery

1
T1018

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