Windows 7 deprecation

Windows 7 will be removed from tria.ge on 2025-03-31

Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/01/2025, 21:41

General

  • Target

    Client-built.exe

  • Size

    3.1MB

  • MD5

    bcfb625c8bdc9d6f55e16fc7c363292f

  • SHA1

    a5da3ba7826fcbe4b1e53d1a8faab851d65b9e5d

  • SHA256

    411404c25495ed9c16504a74d9697965f240e11932dcbc987598453f00502efb

  • SHA512

    b39bc965b5b0eb7207d31276e9d04830c9af4201613a9854595e3c78d3c0e13b7e5af3ae14a22b08b24b6063eaf8856db7a986546901941be301cc03707944fa

  • SSDEEP

    49152:SviI22SsaNYfdPBldt698dBcjHBCj1JOLoGd+bTHHB72eh2NT:Svv22SsaNYfdPBldt6+dBcjHBCs

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

192.168.178.152:4782

Mutex

bacc9e85-2eef-4433-8941-a9c611b9e303

Attributes
  • encryption_key

    D40083F8A2F2D1B1C3C76364F5615E487354F5D3

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Windows Client Startup

  • subdirectory

    SubDir

Signatures

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar family
  • Quasar payload 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\Client-built.exe
    "C:\Users\Admin\AppData\Local\Temp\Client-built.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2968
    • C:\Windows\SYSTEM32\schtasks.exe
      "schtasks" /create /tn "Windows Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:2812
    • C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
      "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4616
      • C:\Windows\SYSTEM32\schtasks.exe
        "schtasks" /create /tn "Windows Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:1248

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\SubDir\Client.exe

    Filesize

    3.1MB

    MD5

    bcfb625c8bdc9d6f55e16fc7c363292f

    SHA1

    a5da3ba7826fcbe4b1e53d1a8faab851d65b9e5d

    SHA256

    411404c25495ed9c16504a74d9697965f240e11932dcbc987598453f00502efb

    SHA512

    b39bc965b5b0eb7207d31276e9d04830c9af4201613a9854595e3c78d3c0e13b7e5af3ae14a22b08b24b6063eaf8856db7a986546901941be301cc03707944fa

  • memory/2968-0-0x00007FFDFA733000-0x00007FFDFA735000-memory.dmp

    Filesize

    8KB

  • memory/2968-1-0x0000000000770000-0x0000000000A94000-memory.dmp

    Filesize

    3.1MB

  • memory/2968-2-0x00007FFDFA730000-0x00007FFDFB1F1000-memory.dmp

    Filesize

    10.8MB

  • memory/2968-9-0x00007FFDFA730000-0x00007FFDFB1F1000-memory.dmp

    Filesize

    10.8MB

  • memory/4616-10-0x00007FFDFA730000-0x00007FFDFB1F1000-memory.dmp

    Filesize

    10.8MB

  • memory/4616-11-0x00007FFDFA730000-0x00007FFDFB1F1000-memory.dmp

    Filesize

    10.8MB

  • memory/4616-12-0x000000001E210000-0x000000001E260000-memory.dmp

    Filesize

    320KB

  • memory/4616-13-0x000000001E320000-0x000000001E3D2000-memory.dmp

    Filesize

    712KB

  • memory/4616-14-0x00007FFDFA730000-0x00007FFDFB1F1000-memory.dmp

    Filesize

    10.8MB