Overview

overview

10

Static

static

3

1b92a5cabb...18.exe

windows7-x64

10

1b92a5cabb...18.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    1b92a5cabb819c864f03ca18d3428165_JaffaCakes118

  • Size

    1.1MB

  • Sample

    240701-rbzp1avhje

  • MD5

    1b92a5cabb819c864f03ca18d3428165

  • SHA1

    a56bdc7707ccdf5dfcf6e9769bb98e825020cb77

  • SHA256

    9212306dc1b5e72d9c1a4b582a31b14e083147a106d69b93758ddcba7b5f5a84

  • SHA512

    9b7ddd59436ae58eb0db59ac6169890a3f5b95d11c7ecf6caf8c3e295efac351154fdd495ec4ce0009651e862935731919b6185f4691f865f77365e74402a472

  • SSDEEP

    24576:EeOnGK9VFU+RbTuTXaq5vAzr3TGqSv7Gu57m+zV5ML:cn11TuTXb5Azr3TGLn566ML

Score
10/10
darkcometbootkitpersistencerattrojan

Malware Config

Targets

    • Target

      1b92a5cabb819c864f03ca18d3428165_JaffaCakes118

    • Size

      1.1MB

    • MD5

      1b92a5cabb819c864f03ca18d3428165

    • SHA1

      a56bdc7707ccdf5dfcf6e9769bb98e825020cb77

    • SHA256

      9212306dc1b5e72d9c1a4b582a31b14e083147a106d69b93758ddcba7b5f5a84

    • SHA512

      9b7ddd59436ae58eb0db59ac6169890a3f5b95d11c7ecf6caf8c3e295efac351154fdd495ec4ce0009651e862935731919b6185f4691f865f77365e74402a472

    • SSDEEP

      24576:EeOnGK9VFU+RbTuTXaq5vAzr3TGqSv7Gu57m+zV5ML:cn11TuTXb5Azr3TGLn566ML

    Score
    10/10
    darkcometbootkitpersistencerattrojan

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • Checks computer location settings

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

    • Executes dropped EXE

    • 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

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

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

Modify Registry

2
T1112

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Remote System Discovery

1
T1018

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks