Overview

overview

10

Static

static

8

9b82aa17d4...05.exe

windows7-x64

10

9b82aa17d4...05.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    9b82aa17d4bf5cbeb90702eb219fc0c845abfe8a4e00826d67ac60f6129f9905

  • Size

    337KB

  • Sample

    220724-qx8z5aeaf9

  • MD5

    4f8e31356bf04b080c5ba8e47756c50f

  • SHA1

    3b5eb07249e213865f1f0f4e779b2db126346c2b

  • SHA256

    9b82aa17d4bf5cbeb90702eb219fc0c845abfe8a4e00826d67ac60f6129f9905

  • SHA512

    2c93d7ffad05bea58635a2445aab9b2a5d050b41c7c940bf74a066b2f4db8e4ecda110c7145a7b7de98904b40f3e8251d9a142cc1aaf4308c653aec26759a71f

Score
10/10
darkcometramnitguest16bankerevasionpersistenceratspywarestealertrojanupxworm

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

globalgarus.bounceme.net:5552

Mutex

DC_MUTEX-1A53RNC

Attributes
  • InstallPath

    MSDCSC\testinform.exe

  • gencode

    qQc4wjtBrTS4

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target

      9b82aa17d4bf5cbeb90702eb219fc0c845abfe8a4e00826d67ac60f6129f9905

    • Size

      337KB

    • MD5

      4f8e31356bf04b080c5ba8e47756c50f

    • SHA1

      3b5eb07249e213865f1f0f4e779b2db126346c2b

    • SHA256

      9b82aa17d4bf5cbeb90702eb219fc0c845abfe8a4e00826d67ac60f6129f9905

    • SHA512

      2c93d7ffad05bea58635a2445aab9b2a5d050b41c7c940bf74a066b2f4db8e4ecda110c7145a7b7de98904b40f3e8251d9a142cc1aaf4308c653aec26759a71f

    Score
    10/10
    darkcometramnitguest16bankerevasionpersistenceratspywarestealertrojanupxworm

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • Modifies firewall policy service

      evasion

    • Modifies security service

      evasion

    • Ramnit

      Ramnit is a versatile family that holds viruses, worms, and Trojans.

      trojanspywarestealerwormbankerramnit

    • 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

    • 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

    • 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

Modify Existing Service

2
T1031

Hidden Files and Directories

2
T1158

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

8
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