Overview

overview

10

Static

static

3

813f353b12...18.exe

windows7-x64

10

813f353b12...18.exe

windows10-2004-x64

Sharing

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General

  • Target

    813f353b1285bcaea41f868746ab9fdd_JaffaCakes118

  • Size

    618KB

  • Sample

    240529-taflvaba4y

  • MD5

    813f353b1285bcaea41f868746ab9fdd

  • SHA1

    301209445bdfd758b1f647bdbcf1609ee07296e7

  • SHA256

    ce140c5a412462747256fb0c54a6d4ffd98a891fba26164a62fd2349c3f44982

  • SHA512

    1ef96e09c43a7c71395112c2a867e60259483585deeb60c122482d4e943b7eef7f432196eb62387655d819d29e8c64c98cf49b04623ff185924135b8aa128d38

  • SSDEEP

    12288:LlZyWuK5AwBaCPY5OtC36PdbidyQPdF58SxXnkXnmHuYYOm:WZlwBaCPtC3+e4S1k0D

Score
10/10
quasarvenomratwindows defender securityevasionpersistenceratrootkitspywarestealertrojan

Malware Config

Extracted

Family

quasar

Version

2.1.0.0

Botnet

Windows Defender Security

C2

vilvaraj-32652.portmap.io:32652

Mutex

VNM_MUTEX_XoAJ77Kcpkuyjz4MJK

Attributes
  • encryption_key

    5nIMwmTRG5wyVhouaxGb

  • install_name

    Windows Defender Security.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Windows Defender Security

  • subdirectory

    SubDir

Targets

    • Target

      813f353b1285bcaea41f868746ab9fdd_JaffaCakes118

    • Size

      618KB

    • MD5

      813f353b1285bcaea41f868746ab9fdd

    • SHA1

      301209445bdfd758b1f647bdbcf1609ee07296e7

    • SHA256

      ce140c5a412462747256fb0c54a6d4ffd98a891fba26164a62fd2349c3f44982

    • SHA512

      1ef96e09c43a7c71395112c2a867e60259483585deeb60c122482d4e943b7eef7f432196eb62387655d819d29e8c64c98cf49b04623ff185924135b8aa128d38

    • SSDEEP

      12288:LlZyWuK5AwBaCPY5OtC36PdbidyQPdF58SxXnkXnmHuYYOm:WZlwBaCPtC3+e4S1k0D

    Score
    10/10
    quasarvenomratwindows defender securityevasionpersistenceratrootkitspywarestealertrojan

    • 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 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

System Information Discovery

1
T1082

Remote System Discovery

1
T1018

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks