Overview

overview

10

Static

static

10

8cf4b09c01...47.exe

windows7_x64

10

8cf4b09c01...47.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    8cf4b09c013b583515894483ee4677831da9abdd031215b7129994170108bf47

  • Size

    658KB

  • Sample

    220417-sqjsrshcak

  • MD5

    8899aa46145889974270e7e2077d36b8

  • SHA1

    ccd586872274f37bd9c612594719f83124a26071

  • SHA256

    8cf4b09c013b583515894483ee4677831da9abdd031215b7129994170108bf47

  • SHA512

    6747a2f7874b711cdc41a2dd76ed3073508cb104cd7f8f7e4a215966ad820417786ace600fff62fa98018b4d8af87d0325ab864519221d71dd0bf958e8d7e3d6

Score
10/10
darkcometsazanevasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Sazan

C2

esxcatty.duckdns.org:1604

Mutex

DC_MUTEX-8SPQRNE

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    s8oBWPt7xvyh

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target

      8cf4b09c013b583515894483ee4677831da9abdd031215b7129994170108bf47

    • Size

      658KB

    • MD5

      8899aa46145889974270e7e2077d36b8

    • SHA1

      ccd586872274f37bd9c612594719f83124a26071

    • SHA256

      8cf4b09c013b583515894483ee4677831da9abdd031215b7129994170108bf47

    • SHA512

      6747a2f7874b711cdc41a2dd76ed3073508cb104cd7f8f7e4a215966ad820417786ace600fff62fa98018b4d8af87d0325ab864519221d71dd0bf958e8d7e3d6

    Score
    10/10
    darkcometsazanevasionpersistencerattrojan

    • 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

    • 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