Overview

overview

10

Static

static

8

a20873c234...c4.exe

windows7_x64

10

a20873c234...c4.exe

windows10_x64

10

Sharing

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General

  • Target

    a20873c234b2d2c5af626ff4e1f4c6c4

  • Size

    252KB

  • Sample

    201117-b7vd9t4xnx

  • MD5

    0a6d39443f4e9faebb2675ff08435bc7

  • SHA1

    6a70c0db2a49e608b456e615cbf734d6df93a5dd

  • SHA256

    dc659e2a3ae9c87215da2d9ad649553c5471987a7b4e143226a8142fb934f52d

  • SHA512

    68d7271a822d2b1307bba0ab80a8eace0c56f33195bdef076bcbcac44eaaf3459b71da832cad49f1512516b862b536cce6a8c2ee50700bbba6ecc100e358ab5a

Score
10/10
darkcometguest16persistencerattrojanupx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

ximer2020.ddns.net:1604

Mutex

DC_MUTEX-4U0HFC0

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    aDFqoxfKfrcR

  • install

    true

  • offline_keylogger

    true

  • password

    82121020202222

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target

      a20873c234b2d2c5af626ff4e1f4c6c4

    • Size

      252KB

    • MD5

      0a6d39443f4e9faebb2675ff08435bc7

    • SHA1

      6a70c0db2a49e608b456e615cbf734d6df93a5dd

    • SHA256

      dc659e2a3ae9c87215da2d9ad649553c5471987a7b4e143226a8142fb934f52d

    • SHA512

      68d7271a822d2b1307bba0ab80a8eace0c56f33195bdef076bcbcac44eaaf3459b71da832cad49f1512516b862b536cce6a8c2ee50700bbba6ecc100e358ab5a

    Score
    10/10
    darkcometguest16persistencerattrojanupx

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • Executes dropped EXE

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

      upx

    • Checks computer location settings

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

    • Deletes itself

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • 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

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks