Overview

overview

10

Static

static

4dffb06a8c...d1.exe

windows7-x64

10

4dffb06a8c...d1.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    4dffb06a8cca8786e380f010f82e7727aae168b9cf8bb15922af965115878dd1

  • Size

    871KB

  • Sample

    220720-xqmxmsgcgm

  • MD5

    8a90747b88537f92f59090e5ee75c487

  • SHA1

    0f3a2978f861e69c00f97599113eeede93940248

  • SHA256

    4dffb06a8cca8786e380f010f82e7727aae168b9cf8bb15922af965115878dd1

  • SHA512

    da1668c3c62f18412f3c460f17d6aa3b51a3602d360f1b9fbbace661002453729a80729065de253566a7cb8196ef9bae6419c7eb6430782b08ad39c63839005b

Score
10/10
darkcometo_oevasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

O_O

C2

sker.no-ip.biz:1604

Mutex

DC_MUTEX-0AZXCTR

Attributes
  • InstallPath

    MSDCSC\Wiin32.exe

  • gencode

    cNf5nFUW9lLU

  • install

    true

  • offline_keylogger

    true

  • password

    DEFACING1

  • persistence

    true

  • reg_key

    WMicroUpdate

Targets

    • Target

      4dffb06a8cca8786e380f010f82e7727aae168b9cf8bb15922af965115878dd1

    • Size

      871KB

    • MD5

      8a90747b88537f92f59090e5ee75c487

    • SHA1

      0f3a2978f861e69c00f97599113eeede93940248

    • SHA256

      4dffb06a8cca8786e380f010f82e7727aae168b9cf8bb15922af965115878dd1

    • SHA512

      da1668c3c62f18412f3c460f17d6aa3b51a3602d360f1b9fbbace661002453729a80729065de253566a7cb8196ef9bae6419c7eb6430782b08ad39c63839005b

    Score
    10/10
    darkcometo_oevasionpersistencerattrojan

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • Windows security bypass

      evasiontrojan

    • Disables RegEdit 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

    • Windows security modification

      evasiontrojan

    • 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

Hidden Files and Directories

2
T1158

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

4
T1112

Disabling Security Tools

2
T1089

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