Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows11-21h2_x64
  • resource
    win11-20251229-en
  • resource tags

    arch:x64arch:x86image:win11-20251229-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    08/01/2026, 15:22

General

  • Target
    Addone_plugin_dc.exe
  • Size 63KB
  • Sample260108-sr38ssfz7e
  • SHA256 ccc6f088e6a1b9c9bcee3af6e5baa094e868b111ea4f62cb377db909b1398ba8
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • asyncrat

Version
  • 1.0.7

Botnet
  • Default

C2
  • 196.251.107.94:8848

Mutex
  • DcRf3f3atMutex_qwqdanchun

Attributes
  • delay

    1

  • install

    true

  • install_file

    yandex.dc.exe

  • install_folder

    %AppData%

  • local_host

    127.0.0.1

aes.plain

Signatures

  • AsyncRat

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

  • Asyncrat family
  • Async RAT payload 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Delays execution with timeout.exe 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 19 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 5 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\Addone_plugin_dc.exe
    "C:\Users\Admin\AppData\Local\Temp\Addone_plugin_dc.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4828
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "yandex.dc" /tr '"C:\Users\Admin\AppData\Roaming\yandex.dc.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:5032
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "yandex.dc" /tr '"C:\Users\Admin\AppData\Roaming\yandex.dc.exe"'
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:4880
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp8608.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2220
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:5976
      • C:\Users\Admin\AppData\Roaming\yandex.dc.exe
        "C:\Users\Admin\AppData\Roaming\yandex.dc.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:5168
  • C:\Users\Admin\AppData\Roaming\yandex.dc.exe
    "C:\Users\Admin\AppData\Roaming\yandex.dc.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:4996

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        tmp8608.tmp.bat

        • Path C:\Users\Admin\AppData\Local\Temp\tmp8608.tmp.bat
        • Size 153B
        • SHA256 7c258a929dded59b903ddfb7f426d12239b3747f19b6e9436f689ce30a0299cf
        • MD5 SHA1 SHA512

        yandex.dc.exe

        • Path C:\Users\Admin\AppData\Roaming\yandex.dc.exe
        • Size 63KB
        • SHA256 ccc6f088e6a1b9c9bcee3af6e5baa094e868b111ea4f62cb377db909b1398ba8
        • MD5 SHA1 SHA512 SSDEEP

        memory/4828-0-0x0000000000670000-0x0000000000686000-memory.dmp

        memory/4828-1-0x0000000002960000-0x0000000002970000-memory.dmp