Overview

overview

10

Static

static

3

ItroublveTSC.exe

windows7-x64

10

ItroublveTSC.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    ItroublveTSC.exe

  • Size

    2.0MB

  • Sample

    240408-kxczssdd58

  • MD5

    7c2da2ae36228b8b66ec5e5029e90d08

  • SHA1

    d636baf89fd305a1f694611097ac6e7bcb1f244c

  • SHA256

    c6820f426b28b93295ca3b768780e8b372424fb72e94b5d0c094b030f53d4721

  • SHA512

    93cbc698211b0ab0f96ab3f0eb8d393bcd04580418e08fc6df9b935a7cdd091b619a0edab4771b4c887264b0eef6846e6e08a7be24a8681848a1885206a29960

  • SSDEEP

    49152:DL+qgtiXBVLcHD/QmJqRsVEzCeePMAnUD:OzcBVYHDjcyVMukAUD

Score
10/10
quasarvenomratoffice04evasionratrootkitspywarestealertrojan

Malware Config

Extracted

Family

quasar

Version

2.1.0.0

Botnet

Office04

C2

zaidtheboii-50153.portmap.host:50153

Mutex

VNM_MUTEX_fNWmZ9wa8oprRXUo73

Attributes
  • encryption_key

    PJRTtGrfOi1c09c0GCYT

  • install_name

    OneDrive.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Microsoft One Drive

  • subdirectory

    Microsoft One Drive

Targets

    • Target

      ItroublveTSC.exe

    • Size

      2.0MB

    • MD5

      7c2da2ae36228b8b66ec5e5029e90d08

    • SHA1

      d636baf89fd305a1f694611097ac6e7bcb1f244c

    • SHA256

      c6820f426b28b93295ca3b768780e8b372424fb72e94b5d0c094b030f53d4721

    • SHA512

      93cbc698211b0ab0f96ab3f0eb8d393bcd04580418e08fc6df9b935a7cdd091b619a0edab4771b4c887264b0eef6846e6e08a7be24a8681848a1885206a29960

    • SSDEEP

      49152:DL+qgtiXBVLcHD/QmJqRsVEzCeePMAnUD:OzcBVYHDjcyVMukAUD

    Score
    10/10
    quasarvenomratoffice04evasionratrootkitspywarestealertrojan

    • 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.

    • Deletes itself

    • 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

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