Overview

overview

10

Static

static

3

pack.exe

windows7-x64

10

pack.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    pack.com

  • Size

    500.1MB

  • Sample

    230602-zdagwsed34

  • MD5

    e893801ca83e49f84dca107d6e1162b4

  • SHA1

    3122871288ac44693324194b793fc40347360bd4

  • SHA256

    ca86561805b0e4184479159a552c05becbbad6f209b03df0819cbb0a47d75fe7

  • SHA512

    94f5ca28aedbc2e32383e10ed354a7e8d135f234dae6f1b6f2e1e6f703e4323ae1f3d0f5cb23d57aa85ebe319e59709429837666a7e96234bcabe6b4b851a719

  • SSDEEP

    384:ogPThofsksm2/HMLntRBSlwy/VpREaEhAqDjbY2QuzDf+m9xgJJt/V4568OwXpkD:tIXxOn6ZDn7d21448OKpkBC5ZF/i1

Score
10/10
purecrypterquasarrevengeratoffice04downloaderloaderpersistencespywaretrojan

Malware Config

Extracted

Family

purecrypter

C2

http://95.214.24.37/SystemEnv/uploads/programme_Hdayjetq.jpg

Extracted

Family

quasar

Version

1.4.0.0

Botnet

Office04

C2

45.83.122.111:5557

Mutex

p337SdjNpEb5aKmAPc

Attributes
  • encryption_key

    JzZjeR51DHpipyQ3lm91

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Extracted

Family

quasar

Attributes
  • reconnect_delay

    3000

Targets

    • Target

      pack.com

    • Size

      500.1MB

    • MD5

      e893801ca83e49f84dca107d6e1162b4

    • SHA1

      3122871288ac44693324194b793fc40347360bd4

    • SHA256

      ca86561805b0e4184479159a552c05becbbad6f209b03df0819cbb0a47d75fe7

    • SHA512

      94f5ca28aedbc2e32383e10ed354a7e8d135f234dae6f1b6f2e1e6f703e4323ae1f3d0f5cb23d57aa85ebe319e59709429837666a7e96234bcabe6b4b851a719

    • SSDEEP

      384:ogPThofsksm2/HMLntRBSlwy/VpREaEhAqDjbY2QuzDf+m9xgJJt/V4568OwXpkD:tIXxOn6ZDn7d21448OKpkBC5ZF/i1

    Score
    10/10
    purecrypterquasarrevengeratoffice04downloaderloaderpersistencespywaretrojan

    • PureCrypter

      PureCrypter is a .NET malware loader first seen in early 2021.

      loaderdownloaderpurecrypter

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • RevengeRAT

      Remote-access trojan with a wide range of capabilities.

      trojanrevengerat

    • Checks computer location settings

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

    • 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 v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

2
T1012

System Information Discovery

3
T1082

Peripheral Device Discovery

1
T1120

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks