Analysis

  • max time kernel
    143s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    04/08/2026, 13:44

General

  • Target
    e363ead8526af2a6a1f5ea3ea4cee2f4009f96c73e474d46811a7fcb36a2bc29.exe
  • Size 45KB
  • Sample260804-q2aywssamd
  • SHA256 e363ead8526af2a6a1f5ea3ea4cee2f4009f96c73e474d46811a7fcb36a2bc29
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • sexviet3x.pro:80

  • sexviet3x.pro:22

  • sexviet3x.pro:8080

  • sexviet3x.pro:8880

  • sexviet3x.pro:2052

  • sexviet3x.pro:2082

  • sexviet3x.pro:2086

  • sexviet3x.pro:2095

  • sexviet3x.pro:443

  • sexviet3x.pro:2053

  • sexviet3x.pro:2083

  • sexviet3x.pro:2087

  • sexviet3x.pro:2096

  • sexviet3x.pro:8443

  • www.sexviet3x.pro:80

  • www.sexviet3x.pro:22

  • www.sexviet3x.pro:8080

  • www.sexviet3x.pro:8880

  • www.sexviet3x.pro:2052

  • www.sexviet3x.pro:2082

Mutex
  • KUPvEv1SUUBA

Attributes
  • delay

    0

  • install

    true

  • install_file

    9c3o3.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).

  • 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 23 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e363ead8526af2a6a1f5ea3ea4cee2f4009f96c73e474d46811a7fcb36a2bc29.exe
    "C:\Users\Admin\AppData\Local\Temp\e363ead8526af2a6a1f5ea3ea4cee2f4009f96c73e474d46811a7fcb36a2bc29.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:564
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "9c3o3" /tr '"C:\Users\Admin\AppData\Roaming\9c3o3.exe"' & exit
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4592
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "9c3o3" /tr '"C:\Users\Admin\AppData\Roaming\9c3o3.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:1240
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp5D7.tmp.bat""
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3988
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:2200
      • C:\Users\Admin\AppData\Roaming\9c3o3.exe
        "C:\Users\Admin\AppData\Roaming\9c3o3.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:3756
  • C:\Users\Admin\AppData\Roaming\9c3o3.exe
    "C:\Users\Admin\AppData\Roaming\9c3o3.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:2068

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        tmp5D7.tmp.bat

        • Path C:\Users\Admin\AppData\Local\Temp\tmp5D7.tmp.bat
        • Size 148B
        • SHA256 826de7ef96db797b96387b4ef59ee10f2136a8a9ce679ffb4a3bd7d0f7311a76
        • MD5 SHA1 SHA512 TLSH

        9c3o3.exe

        • Path C:\Users\Admin\AppData\Roaming\9c3o3.exe
        • Size 45KB
        • SHA256 e363ead8526af2a6a1f5ea3ea4cee2f4009f96c73e474d46811a7fcb36a2bc29
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/564-0-0x0000000000E50000-0x0000000000E62000-memory.dmp

        memory/564-1-0x0000000005920000-0x0000000005930000-memory.dmp

        memory/564-2-0x0000000005840000-0x00000000058DC000-memory.dmp

        memory/2068-10-0x0000000004AA0000-0x0000000004AB0000-memory.dmp

        memory/2068-13-0x0000000004AA0000-0x0000000004AB0000-memory.dmp