Overview

overview

10

Static

static

10

8644f9c0bd...b5.exe

windows7_x64

10

8644f9c0bd...b5.exe

windows10_x64

10

Sharing

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General

  • Target

    8644f9c0bdda59237eddd3272a41a41633abaeff3668ddcd71a54610456288b5

  • Size

    658KB

  • Sample

    210515-1zpwgh39c6

  • MD5

    f979bb14551c7b5166c2564f0cb81b17

  • SHA1

    8ee1be6c76d7a2a1179564bd0e12bb94a603402c

  • SHA256

    8644f9c0bdda59237eddd3272a41a41633abaeff3668ddcd71a54610456288b5

  • SHA512

    232f74ea88561f67e5a3095b83681e4f35e49e5c877e81c23cf9b04994a299e8fd981e2efae97297e6f4226ad7d7f49bd2ee4eb4d0d9a4162f22dd2749e8af23

Score
10/10
darkcometallevasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

All

C2

192.168.0.102:1604

192.168.0.102:81
Mutex

DC_MUTEX-GRA2N0X

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    jqHg0YaebT2u

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target

      8644f9c0bdda59237eddd3272a41a41633abaeff3668ddcd71a54610456288b5

    • Size

      658KB

    • MD5

      f979bb14551c7b5166c2564f0cb81b17

    • SHA1

      8ee1be6c76d7a2a1179564bd0e12bb94a603402c

    • SHA256

      8644f9c0bdda59237eddd3272a41a41633abaeff3668ddcd71a54610456288b5

    • SHA512

      232f74ea88561f67e5a3095b83681e4f35e49e5c877e81c23cf9b04994a299e8fd981e2efae97297e6f4226ad7d7f49bd2ee4eb4d0d9a4162f22dd2749e8af23

    Score
    10/10
    darkcometallevasionpersistencerattrojan

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • Disables RegEdit via registry modification

      evasion

    • 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