Analysis

  • max time kernel
    99s
  • max time network
    116s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-01-2025 20:41

General

  • Target

    39e5a16d822e42f67b38b1d28fd407bdbe320ac2e6eeae0902474e0ae584f55f.exe

  • Size

    3.3MB

  • MD5

    fbe4c2d0da3c188d4d6f3581804130de

  • SHA1

    60d8ab142a8435b450a8f8ffa5d011a7980a0f4e

  • SHA256

    39e5a16d822e42f67b38b1d28fd407bdbe320ac2e6eeae0902474e0ae584f55f

  • SHA512

    c206d7e4aa0267139012dd29fb56f249694d0802eb4f62185fa3024d479bc09e39024737ff1fe203b5bd2aa964ea102a1a0fa0c75f0c9532c651111ef4245047

  • SSDEEP

    49152:MvbI22SsaNYfdPBldt698dBcjHBiRJ6kbR3LoGd14THHB72eh2NT4:Mvk22SsaNYfdPBldt6+dBcjHBiRJ6u0

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

192.168.11.218:8743

Mutex

0785d928-9c9f-4e88-b4b9-fc7e0ebe5d9f

Attributes
  • encryption_key

    40C7D6FE11A9E398D2416D2CF24E481422C8C0C6

  • 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\39e5a16d822e42f67b38b1d28fd407bdbe320ac2e6eeae0902474e0ae584f55f.exe
    "C:\Users\Admin\AppData\Local\Temp\39e5a16d822e42f67b38b1d28fd407bdbe320ac2e6eeae0902474e0ae584f55f.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:3092

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/3092-0-0x00007FFEC6143000-0x00007FFEC6145000-memory.dmp

    Filesize

    8KB

  • memory/3092-1-0x0000000000A90000-0x0000000000DE6000-memory.dmp

    Filesize

    3.3MB

  • memory/3092-2-0x00007FFEC6140000-0x00007FFEC6C01000-memory.dmp

    Filesize

    10.8MB

  • memory/3092-3-0x000000001D5F0000-0x000000001D640000-memory.dmp

    Filesize

    320KB

  • memory/3092-4-0x000000001D700000-0x000000001D7B2000-memory.dmp

    Filesize

    712KB

  • memory/3092-5-0x00007FFEC6143000-0x00007FFEC6145000-memory.dmp

    Filesize

    8KB

  • memory/3092-6-0x00007FFEC6140000-0x00007FFEC6C01000-memory.dmp

    Filesize

    10.8MB