Analysis

  • max time kernel
    149s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    01/07/2026, 12:38

General

  • Target
    a957649df7bbf267c821ed2faf7bde374ebb9c319b658aba6dd5960bc4b70420.exe
  • Size 45KB
  • Sample260701-pvb2yaet2q
  • SHA256 a957649df7bbf267c821ed2faf7bde374ebb9c319b658aba6dd5960bc4b70420
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • xxxtop.net:80

  • xxxtop.net:22

  • xxxtop.net:8080

  • xxxtop.net:8880

  • xxxtop.net:2052

  • xxxtop.net:2082

  • xxxtop.net:2086

  • xxxtop.net:2095

  • xxxtop.net:443

  • xxxtop.net:2053

  • xxxtop.net:2083

  • xxxtop.net:2087

  • xxxtop.net:2096

  • xxxtop.net:8443

  • www.xxxtop.net:80

  • www.xxxtop.net:22

  • www.xxxtop.net:8080

  • www.xxxtop.net:8880

  • www.xxxtop.net:2052

  • www.xxxtop.net:2082

Mutex
  • df4FUGYEG2nk

Attributes
  • delay

    0

  • install

    true

  • install_file

    80f7k.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 2 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\a957649df7bbf267c821ed2faf7bde374ebb9c319b658aba6dd5960bc4b70420.exe
    "C:\Users\Admin\AppData\Local\Temp\a957649df7bbf267c821ed2faf7bde374ebb9c319b658aba6dd5960bc4b70420.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4520
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "80f7k" /tr '"C:\Users\Admin\AppData\Roaming\80f7k.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:5944
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "80f7k" /tr '"C:\Users\Admin\AppData\Roaming\80f7k.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:5192
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp6D8A.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:5324
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:4708
      • C:\Users\Admin\AppData\Roaming\80f7k.exe
        "C:\Users\Admin\AppData\Roaming\80f7k.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:5496
  • C:\Users\Admin\AppData\Roaming\80f7k.exe
    "C:\Users\Admin\AppData\Roaming\80f7k.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:644

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        tmp6D8A.tmp.bat

        • Path C:\Users\Admin\AppData\Local\Temp\tmp6D8A.tmp.bat
        • Size 149B
        • SHA256 8d4ecf61104cd8ebbd925c90e6970764f93e8ebc2023d63959e7464108bdb56e
        • MD5 SHA1 SHA512 TLSH

        80f7k.exe

        • Path C:\Users\Admin\AppData\Roaming\80f7k.exe
        • Size 45KB
        • SHA256 a957649df7bbf267c821ed2faf7bde374ebb9c319b658aba6dd5960bc4b70420
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/644-10-0x0000000005990000-0x00000000059A0000-memory.dmp

        memory/644-13-0x0000000005990000-0x00000000059A0000-memory.dmp

        memory/4520-0-0x00000000001F0000-0x0000000000202000-memory.dmp

        memory/4520-1-0x0000000004C60000-0x0000000004C70000-memory.dmp

        memory/4520-2-0x0000000004BB0000-0x0000000004C4C000-memory.dmp