Analysis

  • max time kernel
    99s
  • max time network
    115s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-12-2024 16:26

General

  • Target

    e4186a12cdbabcf600e96a35335f9305949be5ea07261cbc4d42d29b154127eaN.exe

  • Size

    3.1MB

  • MD5

    7cecfd274a84f03857893e089f2baff0

  • SHA1

    f38b4b236ca495516c9ed7a2e4186e267bbf91d1

  • SHA256

    e4186a12cdbabcf600e96a35335f9305949be5ea07261cbc4d42d29b154127ea

  • SHA512

    1531b06efa670a0eba0c72196237f95ac517893ab0307deead61ff5b59d7d4114fdcb284213ede10e219da49783ed0fb51bfc1f26b381788ec25c0d2ea3fb9b2

  • SSDEEP

    49152:rvbI22SsaNYfdPBldt698dBcjHyVxNESEnk/i1LoGdCTHHB72eh2NT:rvk22SsaNYfdPBldt6+dBcjHkx+N

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

192.168.219.111:4782

Mutex

49d787b3-0fea-4746-8e18-a33027a94e42

Attributes
  • encryption_key

    BD5280C2874A956B96E6A92745A817A564CC5CE5

  • 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
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • 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\e4186a12cdbabcf600e96a35335f9305949be5ea07261cbc4d42d29b154127eaN.exe
    "C:\Users\Admin\AppData\Local\Temp\e4186a12cdbabcf600e96a35335f9305949be5ea07261cbc4d42d29b154127eaN.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:2124

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2124-0-0x00007FFCCB7F3000-0x00007FFCCB7F5000-memory.dmp

    Filesize

    8KB

  • memory/2124-1-0x0000000000420000-0x0000000000744000-memory.dmp

    Filesize

    3.1MB

  • memory/2124-2-0x00007FFCCB7F0000-0x00007FFCCC2B1000-memory.dmp

    Filesize

    10.8MB

  • memory/2124-3-0x000000001BE40000-0x000000001BE90000-memory.dmp

    Filesize

    320KB

  • memory/2124-4-0x000000001BF50000-0x000000001C002000-memory.dmp

    Filesize

    712KB

  • memory/2124-5-0x00007FFCCB7F3000-0x00007FFCCB7F5000-memory.dmp

    Filesize

    8KB

  • memory/2124-6-0x00007FFCCB7F0000-0x00007FFCCC2B1000-memory.dmp

    Filesize

    10.8MB