Analysis

  • max time kernel
    145s
  • max time network
    103s
  • platform
    windows11-21h2_x64
  • resource
    win11-20250410-en
  • resource tags

    arch:x64arch:x86image:win11-20250410-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    19/04/2025, 13:55

General

  • Target

    2025-04-19_bb2609006530c823044bfa8c88a36899_black-basta_cobalt-strike_satacom.exe

  • Size

    3.6MB

  • MD5

    bb2609006530c823044bfa8c88a36899

  • SHA1

    a3ee585e44fa7beeaf2720092088abdb31a8ba14

  • SHA256

    ca836ea84ec237db743f78ddeef8884260cb873dc0f41d82dd03e3b3e8c154e2

  • SHA512

    2fa44b55541426a636d20354999b9f8ba6e41851dd2018df2e2361e19173bf7bd28ea617e79ba80c8075f9e3da771cc5a383b2e9a16fc300447e546fc4da1a68

  • SSDEEP

    98304:ZKYPuHbAMo2SB+NA69Tu9dQ7L2gNR9qFSTI:ZuMoSB+NAOTu9dQP9/9/

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

127.0.0.1:4782

Mutex

f80817f2-eab1-4d18-9eee-2f1cf2a4ab97

Attributes
  • encryption_key

    84895DEABC045196F0C122A7F0DEB1F2D76E0532

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Signatures

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar family
  • Quasar payload 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2025-04-19_bb2609006530c823044bfa8c88a36899_black-basta_cobalt-strike_satacom.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-04-19_bb2609006530c823044bfa8c88a36899_black-basta_cobalt-strike_satacom.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:2920

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2920-0-0x000001F967D20000-0x000001F968043000-memory.dmp

    Filesize

    3.1MB

  • memory/2920-1-0x00007FF8A8853000-0x00007FF8A8855000-memory.dmp

    Filesize

    8KB

  • memory/2920-2-0x000001F96A850000-0x000001F96AB74000-memory.dmp

    Filesize

    3.1MB

  • memory/2920-3-0x00007FF8A8850000-0x00007FF8A9312000-memory.dmp

    Filesize

    10.8MB

  • memory/2920-4-0x00007FF8A8850000-0x00007FF8A9312000-memory.dmp

    Filesize

    10.8MB

  • memory/2920-5-0x00007FF8A8850000-0x00007FF8A9312000-memory.dmp

    Filesize

    10.8MB

  • memory/2920-6-0x00007FF8A8850000-0x00007FF8A9312000-memory.dmp

    Filesize

    10.8MB

  • memory/2920-8-0x000001F96A5E0000-0x000001F96A692000-memory.dmp

    Filesize

    712KB

  • memory/2920-7-0x000001F969C30000-0x000001F969C80000-memory.dmp

    Filesize

    320KB

  • memory/2920-9-0x00007FF8A8853000-0x00007FF8A8855000-memory.dmp

    Filesize

    8KB

  • memory/2920-10-0x00007FF8A8850000-0x00007FF8A9312000-memory.dmp

    Filesize

    10.8MB