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
    15/07/2026, 08:44

General

  • Target
    fed89a31f28894f111b592323aafb1f39dbcd0ca9807c6ba9cbf5cc6aa4adcbc.exe
  • Size 45KB
  • Sample260715-knfz4abt21
  • SHA256 fed89a31f28894f111b592323aafb1f39dbcd0ca9807c6ba9cbf5cc6aa4adcbc
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • sexviet.me:80

  • sexviet.me:22

  • sexviet.me:8080

  • sexviet.me:8880

  • sexviet.me:2052

  • sexviet.me:2082

  • sexviet.me:2086

  • sexviet.me:2095

  • sexviet.me:443

  • sexviet.me:2053

  • sexviet.me:2083

  • sexviet.me:2087

  • sexviet.me:2096

  • sexviet.me:8443

  • www.sexviet.me:80

  • www.sexviet.me:22

  • www.sexviet.me:8080

  • www.sexviet.me:8880

  • www.sexviet.me:2052

  • www.sexviet.me:2082

Mutex
  • MHE8TadACtZ0

Attributes
  • delay

    0

  • install

    true

  • install_file

    ppqr4an.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 21 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fed89a31f28894f111b592323aafb1f39dbcd0ca9807c6ba9cbf5cc6aa4adcbc.exe
    "C:\Users\Admin\AppData\Local\Temp\fed89a31f28894f111b592323aafb1f39dbcd0ca9807c6ba9cbf5cc6aa4adcbc.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4360
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "ppqr4an" /tr '"C:\Users\Admin\AppData\Roaming\ppqr4an.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2356
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "ppqr4an" /tr '"C:\Users\Admin\AppData\Roaming\ppqr4an.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2500
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp556E.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4784
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:4628
      • C:\Users\Admin\AppData\Roaming\ppqr4an.exe
        "C:\Users\Admin\AppData\Roaming\ppqr4an.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:1040
  • C:\Users\Admin\AppData\Roaming\ppqr4an.exe
    "C:\Users\Admin\AppData\Roaming\ppqr4an.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:2004

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        tmp556E.tmp.bat

        • Path C:\Users\Admin\AppData\Local\Temp\tmp556E.tmp.bat
        • Size 151B
        • SHA256 aa05e28222b643684354e61236eca7c771feea4a3f4d138921b6972eab81a403
        • MD5 SHA1 SHA512 TLSH

        ppqr4an.exe

        • Path C:\Users\Admin\AppData\Roaming\ppqr4an.exe
        • Size 45KB
        • SHA256 fed89a31f28894f111b592323aafb1f39dbcd0ca9807c6ba9cbf5cc6aa4adcbc
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2004-10-0x00000000057E0000-0x00000000057F0000-memory.dmp

        memory/2004-13-0x00000000057E0000-0x00000000057F0000-memory.dmp

        memory/4360-0-0x0000000000610000-0x0000000000622000-memory.dmp

        memory/4360-1-0x0000000004EB0000-0x0000000004EC0000-memory.dmp

        memory/4360-2-0x0000000004F60000-0x0000000004FFC000-memory.dmp