Overview

overview

10

Static

static

10

49a3094768...01.exe

windows10-2004-x64

10

49a3094768...01.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    148s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    12/07/2026, 03:39

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General

  • Target
    49a3094768c568c85baf9b533c5be5ee6675aa6832028828f0d2875746fbe201.exe
  • Size 45KB
  • Sample260712-d7neysex21
  • SHA256 49a3094768c568c85baf9b533c5be5ee6675aa6832028828f0d2875746fbe201
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
defaultdefense_evasiondiscoveryexecutionasyncratpersistencerat

Malware Config

Extracted

Family

  • asyncrat

Version

  • 0.5.8

Botnet

  • Default

C2

  • sexvietvcl.com:80

  • sexvietvcl.com:22

  • sexvietvcl.com:8080

  • sexvietvcl.com:8880

  • sexvietvcl.com:2052

  • sexvietvcl.com:2082

  • sexvietvcl.com:2086

  • sexvietvcl.com:2095

  • sexvietvcl.com:443

  • sexvietvcl.com:2053

  • sexvietvcl.com:2083

  • sexvietvcl.com:2087

  • sexvietvcl.com:2096

  • sexvietvcl.com:8443

  • www.sexvietvcl.com:80

  • www.sexvietvcl.com:22

  • www.sexvietvcl.com:8080

  • www.sexvietvcl.com:8880

  • www.sexvietvcl.com:2052

  • www.sexvietvcl.com:2082

Mutex

  • yjGRgTzAqhg9

Attributes
  • delay

    0

  • install

    true

  • install_file

    4tf4.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • Family: AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers written in C#.

    ratasyncrat
  • Async RAT payload 1 IoCs
    rat
  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Delays execution with timeout.exe 1 IoCs
    defense_evasion
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistenceexecution
  • Suspicious behavior: EnumeratesProcesses 29 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\49a3094768c568c85baf9b533c5be5ee6675aa6832028828f0d2875746fbe201.exe
    "C:\Users\Admin\AppData\Local\Temp\49a3094768c568c85baf9b533c5be5ee6675aa6832028828f0d2875746fbe201.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1352
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "4tf4" /tr '"C:\Users\Admin\AppData\Roaming\4tf4.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1640
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "4tf4" /tr '"C:\Users\Admin\AppData\Roaming\4tf4.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:1236
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpF3F0.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:6012
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:5152
      • C:\Users\Admin\AppData\Roaming\4tf4.exe
        "C:\Users\Admin\AppData\Roaming\4tf4.exe"
        3⤵
          PID:3496
    • C:\Users\Admin\AppData\Roaming\4tf4.exe
      "C:\Users\Admin\AppData\Roaming\4tf4.exe"
      1⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:1028

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          tmpF3F0.tmp.bat
          • Path C:\Users\Admin\AppData\Local\Temp\tmpF3F0.tmp.bat
          • Size 148B
          • SHA256 3906e0acfe2019e859a237e938c89e5405a2bbff57e282be2b3debb88418e696
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          4tf4.exe
          • Path C:\Users\Admin\AppData\Roaming\4tf4.exe
          • Size 45KB
          • SHA256 49a3094768c568c85baf9b533c5be5ee6675aa6832028828f0d2875746fbe201
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          memory/1028-12-0x00000000749F0000-0x00000000751AC000-memory.dmp
          Download

          memory/1028-14-0x00000000749F0000-0x00000000751AC000-memory.dmp
          Download

          memory/1352-0-0x0000000074B92000-0x0000000074B93000-memory.dmp
          Download

          memory/1352-1-0x00000000003D0000-0x00000000003E2000-memory.dmp
          Download

          memory/1352-2-0x0000000074B80000-0x000000007533C000-memory.dmp
          Download

          memory/1352-3-0x0000000004EC0000-0x0000000004F5C000-memory.dmp
          Download

          memory/1352-8-0x0000000074B80000-0x000000007533C000-memory.dmp
          Download