Overview

overview

10

Static

static

10

4873d23065...81.exe

windows7_x64

10

4873d23065...81.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    4873d23065574c318aa28955737d7d0a74372453ffa950f97da3acc8a2d60481

  • Size

    756KB

  • Sample

    220520-2jbcgsfde4

  • MD5

    86498e5016ff2cb3f0a84f0e03612858

  • SHA1

    4f35692e54c22730b0601a9c3048c7baadf57939

  • SHA256

    4873d23065574c318aa28955737d7d0a74372453ffa950f97da3acc8a2d60481

  • SHA512

    fbe48fb5e8d351a80363dc0de57d970cabed1228e20560df4cd02d75c42b219a70d46057af9c581fcb364751cca315d866b8fcfe46630be72c49e8aecf46453f

Score
10/10
darkcomettacticgevasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

TacticG

C2

192.168.1.113:1604

Mutex

DC_MUTEX-H293GMA

Attributes
  • InstallPath

    windows\RealBoss.exe

  • gencode

    kYG8AAeQRp04

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • reg_key

    RealBoss.exe

Targets

    • Target

      4873d23065574c318aa28955737d7d0a74372453ffa950f97da3acc8a2d60481

    • Size

      756KB

    • MD5

      86498e5016ff2cb3f0a84f0e03612858

    • SHA1

      4f35692e54c22730b0601a9c3048c7baadf57939

    • SHA256

      4873d23065574c318aa28955737d7d0a74372453ffa950f97da3acc8a2d60481

    • SHA512

      fbe48fb5e8d351a80363dc0de57d970cabed1228e20560df4cd02d75c42b219a70d46057af9c581fcb364751cca315d866b8fcfe46630be72c49e8aecf46453f

    Score
    10/10
    darkcomettacticgevasionpersistencerattrojan

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • Disables Task Manager via registry modification

      evasion

    • Executes dropped EXE

    • 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.

    • Loads dropped DLL

    • Adds Run key to start application

      persistence
    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1
T1004

Hidden Files and Directories

2
T1158

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

2
T1112

Hidden Files and Directories

2
T1158

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks