Overview

overview

10

Static

static

f6f83ba3f1...0f.exe

windows7-x64

10

f6f83ba3f1...0f.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    f6f83ba3f1e87503941e50b3e50d390f

  • Size

    17KB

  • Sample

    230125-fjy8nagf5s

  • MD5

    f6f83ba3f1e87503941e50b3e50d390f

  • SHA1

    6983d00bc9cda93f0da126504d99a851ffef6cea

  • SHA256

    3fb34d34eaa6800dce2dce585ec89a9b3f98637c624c8774945af5ad8a37a3e8

  • SHA512

    d9afb2024c16229d1245d1c8faf1a5fb7b1c2a4c2e379078e0c70493c8dedc7fb76be3233c4e9757168382b27b8ae4f17726209af893297fe67838472443e3d4

  • SSDEEP

    384:O0CqWx4t+dWNzuY7/aAygucwhb6v/uFi:O0CL4sBTguJmei

Score
10/10
quasarrevengeratoffice04persistencespywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.0.0

Botnet

Office04

C2

51.89.157.248:4782

Mutex

MvfU8Y7jQptTEqcSWG

Attributes
  • encryption_key

    gfcyUhYEMEq5BWNn8aVX

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target

      f6f83ba3f1e87503941e50b3e50d390f

    • Size

      17KB

    • MD5

      f6f83ba3f1e87503941e50b3e50d390f

    • SHA1

      6983d00bc9cda93f0da126504d99a851ffef6cea

    • SHA256

      3fb34d34eaa6800dce2dce585ec89a9b3f98637c624c8774945af5ad8a37a3e8

    • SHA512

      d9afb2024c16229d1245d1c8faf1a5fb7b1c2a4c2e379078e0c70493c8dedc7fb76be3233c4e9757168382b27b8ae4f17726209af893297fe67838472443e3d4

    • SSDEEP

      384:O0CqWx4t+dWNzuY7/aAygucwhb6v/uFi:O0CL4sBTguJmei

    Score
    10/10
    quasarrevengeratoffice04persistencespywaretrojan

    • 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

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks