Overview

overview

10

Static

static

10

$77-Venom.exe

windows7-x64

10

$77-Venom.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    $77-Venom.exe

  • Size

    534KB

  • Sample

    240208-cxhahsaf8s

  • MD5

    ac2e0dc8d409951c34e10105738c0819

  • SHA1

    644f9ecf7dd774bcf0ebd551344866f3311b4ddb

  • SHA256

    f2d6e1e9007b693c4ef5b7a8ee56c4bf24594620a43c16d752fe79dc60132270

  • SHA512

    a0c2c24375db71dd7617f52c24824f760a80a9a2e77fe0f3bcc1518fbf0cefc11e41aa9af65231e9bb1d1d91a0653aefb1bb650e701922152fc8844f0b56535a

  • SSDEEP

    12288:0kxfIayFM+jJ2vemr+mf7B+yVkzFBtFET:0wPyFMyEr+mFzyFs

Score
10/10
quasarvenomratmariojudahevasionratrootkitspywarestealertrojan

Malware Config

Extracted

Family

quasar

Version

2.1.0.0

Botnet

mariojudah

C2

127.0.0.1:4782

Mutex

VNM_MUTEX_a2Jk7sW9n0PjTmaEMn

Attributes
  • encryption_key

    1zzvalSEUSRsWGZTAdB5

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Venom Client Startup

  • subdirectory

    SubDir

Targets

    • Target

      $77-Venom.exe

    • Size

      534KB

    • MD5

      ac2e0dc8d409951c34e10105738c0819

    • SHA1

      644f9ecf7dd774bcf0ebd551344866f3311b4ddb

    • SHA256

      f2d6e1e9007b693c4ef5b7a8ee56c4bf24594620a43c16d752fe79dc60132270

    • SHA512

      a0c2c24375db71dd7617f52c24824f760a80a9a2e77fe0f3bcc1518fbf0cefc11e41aa9af65231e9bb1d1d91a0653aefb1bb650e701922152fc8844f0b56535a

    • SSDEEP

      12288:0kxfIayFM+jJ2vemr+mf7B+yVkzFBtFET:0wPyFMyEr+mFzyFs

    Score
    10/10
    quasarvenomratmariojudahevasionratrootkitspywarestealertrojan

    • 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

    • Looks up external IP address via web service

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

    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

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