Analysis

  • max time kernel
    150s
  • max time network
    155s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    04/08/2026, 12:40

General

  • Target
    8c2adc617a8c5e1f34f0cbae8f08bd5d18bd8b15843d95c3b383bb4470c3d08d.exe
  • Size 45KB
  • Sample260804-pwe5zseq5x
  • SHA256 8c2adc617a8c5e1f34f0cbae8f08bd5d18bd8b15843d95c3b383bb4470c3d08d
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • sexviet41.com:80

  • sexviet41.com:22

  • sexviet41.com:8080

  • sexviet41.com:8880

  • sexviet41.com:2052

  • sexviet41.com:2082

  • sexviet41.com:2086

  • sexviet41.com:2095

  • sexviet41.com:443

  • sexviet41.com:2053

  • sexviet41.com:2083

  • sexviet41.com:2087

  • sexviet41.com:2096

  • sexviet41.com:8443

  • www.sexviet41.com:80

  • www.sexviet41.com:22

  • www.sexviet41.com:8080

  • www.sexviet41.com:8880

  • www.sexviet41.com:2052

  • www.sexviet41.com:2082

Mutex
  • Pd5DWtMt1tSj

Attributes
  • delay

    0

  • install

    true

  • install_file

    edb9a.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 2 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8c2adc617a8c5e1f34f0cbae8f08bd5d18bd8b15843d95c3b383bb4470c3d08d.exe
    "C:\Users\Admin\AppData\Local\Temp\8c2adc617a8c5e1f34f0cbae8f08bd5d18bd8b15843d95c3b383bb4470c3d08d.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2448
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "edb9a" /tr '"C:\Users\Admin\AppData\Roaming\edb9a.exe"' & exit
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1000
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "edb9a" /tr '"C:\Users\Admin\AppData\Roaming\edb9a.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:3976
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpF67.tmp.bat""
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3344
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:928
      • C:\Users\Admin\AppData\Roaming\edb9a.exe
        "C:\Users\Admin\AppData\Roaming\edb9a.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:1300
  • C:\Users\Admin\AppData\Roaming\edb9a.exe
    "C:\Users\Admin\AppData\Roaming\edb9a.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:4196

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        tmpF67.tmp.bat

        • Path C:\Users\Admin\AppData\Local\Temp\tmpF67.tmp.bat
        • Size 148B
        • SHA256 ea7ed60bb9a193f5e05d4ea0ec536a020388751e32a84654e1aef325d051d1a4
        • MD5 SHA1 SHA512 TLSH

        edb9a.exe

        • Path C:\Users\Admin\AppData\Roaming\edb9a.exe
        • Size 45KB
        • SHA256 8c2adc617a8c5e1f34f0cbae8f08bd5d18bd8b15843d95c3b383bb4470c3d08d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2448-0-0x0000000075092000-0x0000000075093000-memory.dmp

        memory/2448-1-0x0000000000B30000-0x0000000000B42000-memory.dmp

        memory/2448-2-0x0000000075080000-0x000000007583C000-memory.dmp

        memory/2448-3-0x0000000005550000-0x00000000055EC000-memory.dmp

        memory/2448-8-0x0000000075080000-0x000000007583C000-memory.dmp

        memory/4196-12-0x00000000748C2000-0x00000000748C3000-memory.dmp