Overview

overview

10

Static

static

10

9b664d1737...de.exe

windows7-x64

10

9b664d1737...de.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    9b664d1737e4b08517167fff2d19bade

  • Size

    535KB

  • Sample

    231222-qfkk7shaa6

  • MD5

    9b664d1737e4b08517167fff2d19bade

  • SHA1

    dbbc1588618273813ca9f3de2708f4f4b7934029

  • SHA256

    ed07371994b2bce11a662df8ab5603ed80a73c30cdd4f29d922eae221320a39b

  • SHA512

    955e24ab139489a2835f553d6e58ebeb2af7dae20317c6510e3289a902bbf2a7ed329776dfc7afaa948d61fd0cd47b7216017003eaa410d4d07348e19848484c

  • SSDEEP

    12288:VuxMRH2MMvs5v5iX7K+k2dV++kQgog5Y:VWu2MMv5++kRc

Score
10/10
quasarvenomrathackedevasionratrootkitspywarestealertrojan

Malware Config

Extracted

Family

quasar

Version

2.1.0.0

Botnet

Hacked

C2

Cheaper-60753.portmap.host:62240

Mutex

VNM_MUTEX_7KSPEPYRO6LRW25BBT

Attributes
  • encryption_key

    SPWhfeGvCah4GWzpm6Am

  • install_name

    Host Process for Windows Tasks.exe

  • log_directory

    Microsoft

  • reconnect_delay

    1000

  • startup_key

    Host Process for Windows Services

  • subdirectory

    MIcrosoft

Targets

    • Target

      9b664d1737e4b08517167fff2d19bade

    • Size

      535KB

    • MD5

      9b664d1737e4b08517167fff2d19bade

    • SHA1

      dbbc1588618273813ca9f3de2708f4f4b7934029

    • SHA256

      ed07371994b2bce11a662df8ab5603ed80a73c30cdd4f29d922eae221320a39b

    • SHA512

      955e24ab139489a2835f553d6e58ebeb2af7dae20317c6510e3289a902bbf2a7ed329776dfc7afaa948d61fd0cd47b7216017003eaa410d4d07348e19848484c

    • SSDEEP

      12288:VuxMRH2MMvs5v5iX7K+k2dV++kQgog5Y:VWu2MMv5++kRc

    Score
    10/10
    quasarvenomrathackedevasionratrootkitspywarestealertrojan

    • 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

    • Looks up external IP address via web service

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

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

1
T1053

Persistence

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Scheduled Task/Job

1
T1053

Privilege Escalation

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Scheduled Task/Job

1
T1053

Defense Evasion

Modify Registry

2
T1112

Impair Defenses

2
T1562

Disable or Modify Tools

2
T1562.001

Credential Access

Discovery

System Information Discovery

1
T1082

Remote System Discovery

1
T1018

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks