Overview

overview

10

Static

static

10

a03f3f9f48...6b.exe

windows7_x64

10

a03f3f9f48...6b.exe

windows10_x64

10

Sharing

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General

  • Target

    a03f3f9f48a88f30a6826f42bff8e45565d2c058abed4a83725af7db272b216b

  • Size

    659KB

  • Sample

    210924-gx7mmagadn

  • MD5

    1d8488e1531d6a0b880347ac3c90aa55

  • SHA1

    1240d4284b9a4d30b573cf3530a70cc109426051

  • SHA256

    a03f3f9f48a88f30a6826f42bff8e45565d2c058abed4a83725af7db272b216b

  • SHA512

    765a2a9d7f365ebc9c9082ea24ab9c5256b1bc44aa13596fec69c082cf0ac4a320f05ee78d7cd3df43237ac1246719dfc01d571bdf34d272141a5fb572e6388a

Score
10/10
darkcometsazanevasionpersistenceratsuricatatrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Sazan

C2

carbonkarlduckdns.org:1604

Mutex

DC_MUTEX-A82WM2C

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    AYz297gj1pvL

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • reg_key

    MicroUpdate

Targets

    • Target

      a03f3f9f48a88f30a6826f42bff8e45565d2c058abed4a83725af7db272b216b

    • Size

      659KB

    • MD5

      1d8488e1531d6a0b880347ac3c90aa55

    • SHA1

      1240d4284b9a4d30b573cf3530a70cc109426051

    • SHA256

      a03f3f9f48a88f30a6826f42bff8e45565d2c058abed4a83725af7db272b216b

    • SHA512

      765a2a9d7f365ebc9c9082ea24ab9c5256b1bc44aa13596fec69c082cf0ac4a320f05ee78d7cd3df43237ac1246719dfc01d571bdf34d272141a5fb572e6388a

    Score
    10/10
    darkcometsazanevasionpersistencerattrojansuricata

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • Modifies firewall policy service

      evasion

    • Windows security bypass

      evasiontrojan

    • suricata: ET MALWARE Zeus GameOver Possible DGA NXDOMAIN Responses

      suricata: ET MALWARE Zeus GameOver Possible DGA NXDOMAIN Responses

      suricata

    • Executes dropped EXE

    • Checks computer location settings

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

    • Loads dropped DLL

    • Windows security modification

      evasiontrojan

    • Adds Run key to start application

      persistence
    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1
T1004

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

5
T1112

Disabling Security Tools

2
T1089

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks