Overview

overview

10

Static

static

cb2ba9ccdb...f8.exe

windows7-x64

10

cb2ba9ccdb...f8.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    cb2ba9ccdb9029771747844d79baa1cffdf68239a25396f9641b70eb52f1ddf8

  • Size

    825KB

  • Sample

    221202-v6ymzahd97

  • MD5

    8ee96064220b9576479c458e2ad51411

  • SHA1

    ef27c1347df38df970d6d0ac9c3330c60d032dbb

  • SHA256

    cb2ba9ccdb9029771747844d79baa1cffdf68239a25396f9641b70eb52f1ddf8

  • SHA512

    74658cad0d8b38191e90e068e3e7bb7429e7e3a41555a5fadf33b6118ac36e8f4f1b8e5de20c17a340985285e7899c104d1eb5f5e8074c5dc193b934dc016f8a

  • SSDEEP

    12288:GPcF55DQMSjPaiibTKQZEHi3usCJbGwVHxxhqW+yeGUqG2RKSC:GPGUVPanKMZ35CJCw3rY41n

Score
10/10
darkcometevasionpersistencerattrojan

Malware Config

Targets

    • Target

      cb2ba9ccdb9029771747844d79baa1cffdf68239a25396f9641b70eb52f1ddf8

    • Size

      825KB

    • MD5

      8ee96064220b9576479c458e2ad51411

    • SHA1

      ef27c1347df38df970d6d0ac9c3330c60d032dbb

    • SHA256

      cb2ba9ccdb9029771747844d79baa1cffdf68239a25396f9641b70eb52f1ddf8

    • SHA512

      74658cad0d8b38191e90e068e3e7bb7429e7e3a41555a5fadf33b6118ac36e8f4f1b8e5de20c17a340985285e7899c104d1eb5f5e8074c5dc193b934dc016f8a

    • SSDEEP

      12288:GPcF55DQMSjPaiibTKQZEHi3usCJbGwVHxxhqW+yeGUqG2RKSC:GPGUVPanKMZ35CJCw3rY41n

    Score
    10/10
    darkcometevasionpersistencerattrojan

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • Executes dropped EXE

    • Sets file to hidden

      Modifies file attributes to stop it showing in Explorer etc.

      evasion

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    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

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks