Analysis

  • max time kernel
    6s
  • max time network
    152s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    03/08/2026, 17:16

General

  • Target
    5fd5326b99afe44fb96c06a428cd019b2e93d74b8b1254fc51affb4fe056ef9d.exe
  • Size 45KB
  • Sample260803-vtlsmsfr9w
  • SHA256 5fd5326b99afe44fb96c06a428cd019b2e93d74b8b1254fc51affb4fe056ef9d
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • sexvietdam.blog:80

  • sexvietdam.blog:22

  • sexvietdam.blog:8080

  • sexvietdam.blog:8880

  • sexvietdam.blog:2052

  • sexvietdam.blog:2082

  • sexvietdam.blog:2086

  • sexvietdam.blog:2095

  • sexvietdam.blog:443

  • sexvietdam.blog:2053

  • sexvietdam.blog:2083

  • sexvietdam.blog:2087

  • sexvietdam.blog:2096

  • sexvietdam.blog:8443

  • www.sexvietdam.blog:80

  • www.sexvietdam.blog:22

  • www.sexvietdam.blog:8080

  • www.sexvietdam.blog:8880

  • www.sexvietdam.blog:2052

  • www.sexvietdam.blog:2082

Mutex
  • HEAp3OgFURXo

Attributes
  • delay

    0

  • install

    true

  • install_file

    pjjbmwty.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).

  • Executes a command shell one-liner 1 TTPs 2 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • 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 31 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5fd5326b99afe44fb96c06a428cd019b2e93d74b8b1254fc51affb4fe056ef9d.exe
    "C:\Users\Admin\AppData\Local\Temp\5fd5326b99afe44fb96c06a428cd019b2e93d74b8b1254fc51affb4fe056ef9d.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4676
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "pjjbmwty" /tr '"C:\Users\Admin\AppData\Roaming\pjjbmwty.exe"' & exit
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4248
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "pjjbmwty" /tr '"C:\Users\Admin\AppData\Roaming\pjjbmwty.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2136
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpE7C6.tmp.bat""
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:5788
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:5228
      • C:\Users\Admin\AppData\Roaming\pjjbmwty.exe
        "C:\Users\Admin\AppData\Roaming\pjjbmwty.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:4132
  • C:\Users\Admin\AppData\Roaming\pjjbmwty.exe
    "C:\Users\Admin\AppData\Roaming\pjjbmwty.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4168

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        tmpE7C6.tmp.bat

        • Path C:\Users\Admin\AppData\Local\Temp\tmpE7C6.tmp.bat
        • Size 152B
        • SHA256 1e38954b1281624eff89b5412ed490613d4405c6fb5760067d6a1ff699c0e187
        • MD5 SHA1 SHA512 TLSH

        pjjbmwty.exe

        • Path C:\Users\Admin\AppData\Roaming\pjjbmwty.exe
        • Size 45KB
        • SHA256 5fd5326b99afe44fb96c06a428cd019b2e93d74b8b1254fc51affb4fe056ef9d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/4168-12-0x0000000075030000-0x00000000757EC000-memory.dmp

        memory/4168-14-0x0000000075030000-0x00000000757EC000-memory.dmp

        memory/4676-0-0x0000000075052000-0x0000000075053000-memory.dmp

        memory/4676-1-0x0000000000FA0000-0x0000000000FB2000-memory.dmp

        memory/4676-2-0x0000000075040000-0x00000000757FC000-memory.dmp

        memory/4676-3-0x0000000005B30000-0x0000000005BCC000-memory.dmp

        memory/4676-9-0x0000000075040000-0x00000000757FC000-memory.dmp