Overview

overview

10

Static

static

14dc1c330f...6a.exe

windows7-x64

10

14dc1c330f...6a.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    14dc1c330f5e4b976d09b6b0e8c740cac85a1e4ccca18089f9ae693de988996a

  • Size

    601KB

  • Sample

    221125-kpt84shh5t

  • MD5

    ac916695fe810d70b17bf78c9474aa4e

  • SHA1

    36d871bd8f2bbd050f5218ad994fbe04d1cfe759

  • SHA256

    14dc1c330f5e4b976d09b6b0e8c740cac85a1e4ccca18089f9ae693de988996a

  • SHA512

    21821fb26a4a3c820f0497d3ed56de66cba7915eb76845e1d1829cff20065ff5909a065e81c6ba44406710d315bd9f1988cb06076047fa5a562ff49a7590730f

  • SSDEEP

    12288:wgxy4jZZ8vDc6h3iUhFbAsUMdzxP0V2t5fI44FPTZFyd:1xy4jZ+vDc05hFXxxEIfhe7yd

Score
10/10
quasarvenomrathackedevasionpersistenceratrootkitspywarestealertrojan

Malware Config

Extracted

Family

quasar

Version

2.1.0.0

Botnet

hacked

C2

23.105.131.178:7812

Mutex

VNM_MUTEX_0Ae9WwC7TPO9smz3BJ

Attributes
  • encryption_key

    jCEkwlvO5Scyan0S8vZo

  • install_name

    Windows Security Health Service.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Windows Update

  • subdirectory

    Microsoft

Targets

    • Target

      14dc1c330f5e4b976d09b6b0e8c740cac85a1e4ccca18089f9ae693de988996a

    • Size

      601KB

    • MD5

      ac916695fe810d70b17bf78c9474aa4e

    • SHA1

      36d871bd8f2bbd050f5218ad994fbe04d1cfe759

    • SHA256

      14dc1c330f5e4b976d09b6b0e8c740cac85a1e4ccca18089f9ae693de988996a

    • SHA512

      21821fb26a4a3c820f0497d3ed56de66cba7915eb76845e1d1829cff20065ff5909a065e81c6ba44406710d315bd9f1988cb06076047fa5a562ff49a7590730f

    • SSDEEP

      12288:wgxy4jZZ8vDc6h3iUhFbAsUMdzxP0V2t5fI44FPTZFyd:1xy4jZ+vDc05hFXxxEIfhe7yd

    Score
    10/10
    quasarvenomrathackedevasionpersistenceratrootkitspywarestealertrojan

    • Contains code to disable Windows Defender

      A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

    • Modifies Windows Defender Real-time Protection settings

      evasiontrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • VenomRAT

      VenomRAT is a modified version of QuasarRAT with some added features, such as rootkit and stealer capabilites.

      ratrootkitstealervenomrat

    • Executes dropped EXE

    • Loads dropped DLL

    • Windows security modification

      evasiontrojan

    • Adds Run key to start application

      persistence

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1
T1053

Persistence

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

3
T1112

Disabling Security Tools

2
T1089

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks