Analysis

  • user interaction
    yes
  • max time kernel
    149s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    12/05/2026, 19:37

General

  • Target
    Client-built.exe
  • Size 2.6MB
  • Sample260512-yb6xmsgv8x
  • SHA256 b4e0521e9bbe569e54eba26cfd6ef4ddfdcd6ca1aa5a9f670fe8496537e97f6c
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • quasar

Version
  • 1.6.6

Botnet
  • Office04

C2
  • 192.109.200.250:8907

Mutex
  • b37c4cbf-68f4-4e7c-92ba-ac265729eb51

Attributes
  • encryption_key

    7799F230382DEC15CFC54F1D560B5A8B875621D2

  • install_name

    .exe

  • key_salt

    5a23f8394640cb9e40658446a04c0bbae82dc93d0470e1b2a406a90fd2520382

  • reconnect_delay

    3000

Signatures

  • Family: Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar payload 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Client-built.exe
    "C:\Users\Admin\AppData\Local\Temp\Client-built.exe"
    1⤵
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of AdjustPrivilegeToken
    PID:756

Network

        MITRE ATT&CK Matrix

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/756-0-0x000001D1B87D0000-0x000001D1B8A6E000-memory.dmp

        memory/756-1-0x000001D1D31B0000-0x000001D1D31C0000-memory.dmp

        memory/756-2-0x000001D1B8FC0000-0x000001D1B8FDE000-memory.dmp

        memory/756-3-0x000001D1D3130000-0x000001D1D316A000-memory.dmp

        memory/756-4-0x000001D1D3210000-0x000001D1D3260000-memory.dmp

        memory/756-5-0x000001D1D3320000-0x000001D1D33D2000-memory.dmp

        memory/756-6-0x000001D1D31C0000-0x000001D1D320A000-memory.dmp

        memory/756-7-0x000001D1D3260000-0x000001D1D32AE000-memory.dmp

        memory/756-8-0x000001D1D3170000-0x000001D1D3196000-memory.dmp

        memory/756-9-0x000001D1D32B0000-0x000001D1D32E4000-memory.dmp

        memory/756-10-0x000001D1D33E0000-0x000001D1D342C000-memory.dmp

        memory/756-11-0x000001D1D3430000-0x000001D1D347A000-memory.dmp

        memory/756-12-0x000001D1D32F0000-0x000001D1D331A000-memory.dmp

        memory/756-13-0x000001D1D31B0000-0x000001D1D31C0000-memory.dmp

        memory/756-14-0x000001D1D35E0000-0x000001D1D374A000-memory.dmp

        memory/756-20-0x000001D1D3950000-0x000001D1D3962000-memory.dmp

        memory/756-21-0x000001D1D39B0000-0x000001D1D39EC000-memory.dmp

        memory/756-23-0x000001D1BA910000-0x000001D1BA91A000-memory.dmp

        memory/756-24-0x000001D1D3980000-0x000001D1D3988000-memory.dmp

        memory/756-26-0x000001D1D31B0000-0x000001D1D31C0000-memory.dmp

        memory/756-28-0x000001D1D31B0000-0x000001D1D31C0000-memory.dmp