Analysis

  • max time kernel
    58s
  • max time network
    60s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    11/05/2026, 19:01

General

  • Target
    95bf220dde3717b89ef69932b762d0a467ea30e541866e6f4c29b54036ddaa2c.exe
  • Size 45KB
  • Sample260511-xpj5csct6q
  • SHA256 95bf220dde3717b89ef69932b762d0a467ea30e541866e6f4c29b54036ddaa2c
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • mupdam.tv:443

  • www.mupdam.tv:443

Mutex
  • aCLAWjjwNODD

Attributes
  • delay

    0

  • install

    true

  • install_file

    AsyncClient.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • Family: AsyncRat

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

  • Async RAT payload 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

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

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

  • System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

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

  • 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 23 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\95bf220dde3717b89ef69932b762d0a467ea30e541866e6f4c29b54036ddaa2c.exe
    "C:\Users\Admin\AppData\Local\Temp\95bf220dde3717b89ef69932b762d0a467ea30e541866e6f4c29b54036ddaa2c.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4444
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "AsyncClient" /tr '"C:\Users\Admin\AppData\Roaming\AsyncClient.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3740
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "AsyncClient" /tr '"C:\Users\Admin\AppData\Roaming\AsyncClient.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:3756
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpFCFD.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4840
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:3788
      • C:\Users\Admin\AppData\Roaming\AsyncClient.exe
        "C:\Users\Admin\AppData\Roaming\AsyncClient.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:3448
  • C:\Users\Admin\AppData\Roaming\AsyncClient.exe
    "C:\Users\Admin\AppData\Roaming\AsyncClient.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:3240

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        tmpFCFD.tmp.bat

        • Path C:\Users\Admin\AppData\Local\Temp\tmpFCFD.tmp.bat
        • Size 155B
        • SHA256 2d6951a626fe33c8c6ae3c90f576d921e3544fc63630e05567708d90d1658461
        • MD5 SHA1 SHA512 TLSH

        AsyncClient.exe

        • Path C:\Users\Admin\AppData\Roaming\AsyncClient.exe
        • Size 45KB
        • SHA256 95bf220dde3717b89ef69932b762d0a467ea30e541866e6f4c29b54036ddaa2c
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/3240-16-0x0000000004A70000-0x0000000004ACF000-memory.dmp

        memory/3240-17-0x0000000004B10000-0x0000000004C0A000-memory.dmp

        memory/3448-14-0x00000000049E0000-0x0000000004A3F000-memory.dmp

        memory/3448-15-0x0000000004B10000-0x0000000004C0A000-memory.dmp

        memory/4444-0-0x0000000000AD0000-0x0000000000AE2000-memory.dmp

        memory/4444-1-0x0000000005580000-0x0000000005590000-memory.dmp

        memory/4444-2-0x0000000005630000-0x00000000056CC000-memory.dmp

        memory/4444-7-0x00000000053E0000-0x000000000543F000-memory.dmp

        memory/4444-8-0x0000000005440000-0x000000000553A000-memory.dmp