Analysis

  • max time kernel
    59s
  • max time network
    63s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    29/04/2026, 19:08

General

  • Target
    c0b5ee39859b4cd5e1c86b764ef2e5d1bc57430ae16ba946a02e8663fb0c49ab.exe
  • Size 56KB
  • Sample260429-xtc7lsaz6m
  • SHA256 c0b5ee39859b4cd5e1c86b764ef2e5d1bc57430ae16ba946a02e8663fb0c49ab
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • devsquad.io:443

  • devsquad.io:8848

  • devsquad.io:8080

Mutex
  • TBqzBekQyHvO

Attributes
  • delay

    3

  • install

    true

  • install_file

    AsyncRat.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
  • 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 19 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c0b5ee39859b4cd5e1c86b764ef2e5d1bc57430ae16ba946a02e8663fb0c49ab.exe
    "C:\Users\Admin\AppData\Local\Temp\c0b5ee39859b4cd5e1c86b764ef2e5d1bc57430ae16ba946a02e8663fb0c49ab.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3652
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "AsyncRat" /tr '"C:\Users\Admin\AppData\Roaming\AsyncRat.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4276
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "AsyncRat" /tr '"C:\Users\Admin\AppData\Roaming\AsyncRat.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2004
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp74CD.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1448
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:908
      • C:\Users\Admin\AppData\Roaming\AsyncRat.exe
        "C:\Users\Admin\AppData\Roaming\AsyncRat.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:2608
  • C:\Users\Admin\AppData\Roaming\AsyncRat.exe
    "C:\Users\Admin\AppData\Roaming\AsyncRat.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:3368

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        tmp74CD.tmp.bat

        • Path C:\Users\Admin\AppData\Local\Temp\tmp74CD.tmp.bat
        • Size 152B
        • SHA256 a1d932cb7007d95ee6196be451215111ecb7a42b01a23d820398a89df475331a
        • MD5 SHA1 SHA512 TLSH

        AsyncRat.exe

        • Path C:\Users\Admin\AppData\Roaming\AsyncRat.exe
        • Size 56KB
        • SHA256 c0b5ee39859b4cd5e1c86b764ef2e5d1bc57430ae16ba946a02e8663fb0c49ab
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/908-11-0x0000000000B70000-0x0000000000BEB000-memory.dmp

        memory/2608-15-0x0000000002440000-0x0000000002458000-memory.dmp

        memory/2608-16-0x0000000002460000-0x0000000002479000-memory.dmp

        memory/2608-17-0x0000000002480000-0x000000000248B000-memory.dmp

        memory/2608-14-0x0000000000A70000-0x0000000000AEB000-memory.dmp

        memory/3368-18-0x00000000019B0000-0x0000000001A2B000-memory.dmp

        memory/3368-21-0x00000000058D0000-0x00000000058DB000-memory.dmp

        memory/3368-20-0x00000000058B0000-0x00000000058C9000-memory.dmp

        memory/3368-19-0x0000000003290000-0x00000000032A8000-memory.dmp

        memory/3652-7-0x00000000009F0000-0x0000000000A6B000-memory.dmp

        memory/3652-2-0x0000000004DC0000-0x0000000004E5C000-memory.dmp

        memory/3652-1-0x00000000027E0000-0x00000000027F0000-memory.dmp

        memory/3652-0-0x0000000000250000-0x0000000000264000-memory.dmp