Analysis

  • max time kernel
    149s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    30/08/2026, 23:43

General

  • Target
    cs2.exe
  • Size 105KB
  • Sample260830-3qpdcsbl6v
  • SHA256 f6f7dbd6561e7ee6ba7e6abffdb1e5de01bf511318aade34825d888e99db645f
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • BwRat 1.0.0

Botnet
  • Default

C2
  • 112.213.103.17:1217

Mutex
  • DcRatMutex_qwqdanchun

Attributes
  • delay

    1

  • install

    false

  • install_folder

    %AppData%

aes.plain

Signatures

  • Family: AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers written in C#.

  • Family: DonutLoader

    DonutLoader is a position-independent code that enables in-memory execution of VBScript, JScript, EXE, DLL files and dotNET assemblies.

  • Async RAT payload 2 IoCs
  • Detects DonutLoader 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cs2.exe
    "C:\Users\Admin\AppData\Local\Temp\cs2.exe"
    1⤵
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:1540

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/1540-0-0x0000000000CB0000-0x0000000000CC5000-memory.dmp

        memory/1540-1-0x00000000031E0000-0x00000000031F0000-memory.dmp

        memory/1540-2-0x0000000003400000-0x0000000003416000-memory.dmp

        memory/1540-3-0x00000000031E0000-0x00000000031F0000-memory.dmp

        memory/1540-4-0x00000000031E0000-0x00000000031F0000-memory.dmp

        memory/1540-5-0x00000000031E0000-0x00000000031F0000-memory.dmp

        memory/1540-6-0x0000000077DA1000-0x0000000077DA2000-memory.dmp

        memory/1540-7-0x0000000000D50000-0x0000000000D6E000-memory.dmp

        memory/1540-8-0x00000000031E0000-0x00000000031F0000-memory.dmp

        memory/1540-9-0x00000000031E0000-0x00000000031F0000-memory.dmp

        memory/1540-10-0x00000000031E0000-0x00000000031F0000-memory.dmp

        memory/1540-11-0x00000000031E0000-0x00000000031F0000-memory.dmp