Overview

overview

10

Static

static

f39cf76bea...15.exe

windows7_x64

10

f39cf76bea...15.exe

windows10_x64

10

Sharing

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General

  • Target

    f39cf76bea672912a70974a84cf6ce37188014dc1013ad00ad1fdefb8e7d9b15

  • Size

    1018KB

  • Sample

    210830-ztmwdgk33j

  • MD5

    6f9819c9917076a9c47781971ab914e4

  • SHA1

    69b3110f529e725bbaf3fe7c014c10826ef93a33

  • SHA256

    f39cf76bea672912a70974a84cf6ce37188014dc1013ad00ad1fdefb8e7d9b15

  • SHA512

    337b3cf95e8ac687d630b54817919727c1ea18f0b83d45e8fb82f960ca7542c87fd3203afb9726bbbae5babac9b21f13c0d23df392a94147111b7dce881b27fe

Score
10/10
darkcometguest16persistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

radyom.duckdns.org:1604

Mutex

DC_MUTEX-WJQYLQF

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    fKsi9oKEtUJS

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target

      f39cf76bea672912a70974a84cf6ce37188014dc1013ad00ad1fdefb8e7d9b15

    • Size

      1018KB

    • MD5

      6f9819c9917076a9c47781971ab914e4

    • SHA1

      69b3110f529e725bbaf3fe7c014c10826ef93a33

    • SHA256

      f39cf76bea672912a70974a84cf6ce37188014dc1013ad00ad1fdefb8e7d9b15

    • SHA512

      337b3cf95e8ac687d630b54817919727c1ea18f0b83d45e8fb82f960ca7542c87fd3203afb9726bbbae5babac9b21f13c0d23df392a94147111b7dce881b27fe

    Score
    10/10
    darkcometguest16persistencerattrojan

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1
T1004

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

2
T1112

Credential Access

Discovery

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks