Overview

overview

10

Static

static

3

380cd10567...9d.exe

windows7-x64

10

380cd10567...9d.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    380cd105672b970a3783c0036ebaf09d

  • Size

    1.0MB

  • Sample

    231222-awbp8sabh9

  • MD5

    380cd105672b970a3783c0036ebaf09d

  • SHA1

    112ee91c03921b1aaa3ca9b901054a62a11b0268

  • SHA256

    358b3681682b402dba9c1bf1297193fe257d8cc11e51c2924c657eb2057beb04

  • SHA512

    e3e7954328a98af7b4dd3ec0efa2c390f6d10b8e2037e582043902482f7e90241b0565c0da7972f14193efe517a305441306cb7c32b2f444ba5c58c1c7c5f2da

  • SSDEEP

    24576:Lw/UH7Q9OEKM4TbVOD6s6F+2iYNenwhhWZ0ZnLsm:FH7QAHTbVOD6sl2Zhh

Score
10/10
quasarvenomratsep05evasionpersistenceratrootkitspywarestealertrojan

Malware Config

Extracted

Family

quasar

Version

2.1.0.0

Botnet

SEP05

C2

23.105.131.187:7812

Mutex

VNM_MUTEX_mn3z5p1P4yabWtL9nJ

Attributes
  • encryption_key

    R5zGfMq4QEUio50PoLwo

  • install_name

    Windows Defender Security.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Windows Update Service

  • subdirectory

    Windows Security Firewall

Targets

    • Target

      380cd105672b970a3783c0036ebaf09d

    • Size

      1.0MB

    • MD5

      380cd105672b970a3783c0036ebaf09d

    • SHA1

      112ee91c03921b1aaa3ca9b901054a62a11b0268

    • SHA256

      358b3681682b402dba9c1bf1297193fe257d8cc11e51c2924c657eb2057beb04

    • SHA512

      e3e7954328a98af7b4dd3ec0efa2c390f6d10b8e2037e582043902482f7e90241b0565c0da7972f14193efe517a305441306cb7c32b2f444ba5c58c1c7c5f2da

    • SSDEEP

      24576:Lw/UH7Q9OEKM4TbVOD6s6F+2iYNenwhhWZ0ZnLsm:FH7QAHTbVOD6sl2Zhh

    Score
    10/10
    quasarvenomratsep05evasionpersistenceratrootkitspywarestealertrojan

    • 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

    • Checks computer location settings

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

    • 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 v13

Initial Access

Execution

Scheduled Task/Job

1
T1053

Persistence

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Privilege Escalation

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Defense Evasion

Modify Registry

3
T1112

Impair Defenses

2
T1562

Disable or Modify Tools

2
T1562.001

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Remote System Discovery

1
T1018

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks