Overview

overview

10

Static

static

10

203bf83af8...2c.exe

windows10-2004-x64

10

203bf83af8...2c.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    6s
  • max time network
    149s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    11/07/2026, 06:44

Sharing

Copy URL Twitter E-mail
Report Analysis Logs

General

  • Target
    203bf83af83c43502e70b48f0e38ec3a4ad5ae3270b2145ffb034647a749a32c.exe
  • Size 45KB
  • Sample260711-hhf2ssft5v
  • SHA256 203bf83af83c43502e70b48f0e38ec3a4ad5ae3270b2145ffb034647a749a32c
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
defaultdefense_evasiondiscoveryexecutionasyncratpersistencerat

Malware Config

Extracted

Family

  • asyncrat

Version

  • 0.5.8

Botnet

  • Default

C2

  • sexvietnew.info:80

  • sexvietnew.info:22

  • sexvietnew.info:8080

  • sexvietnew.info:8880

  • sexvietnew.info:2052

  • sexvietnew.info:2082

  • sexvietnew.info:2086

  • sexvietnew.info:2095

  • sexvietnew.info:443

  • sexvietnew.info:2053

  • sexvietnew.info:2083

  • sexvietnew.info:2087

  • sexvietnew.info:2096

  • sexvietnew.info:8443

  • www.sexvietnew.info:80

  • www.sexvietnew.info:22

  • www.sexvietnew.info:8080

  • www.sexvietnew.info:8880

  • www.sexvietnew.info:2052

  • www.sexvietnew.info:2082

Mutex

  • VnLKWRM0x1zp

Attributes
  • delay

    0

  • install

    true

  • install_file

    8u19.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 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.

    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 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\203bf83af83c43502e70b48f0e38ec3a4ad5ae3270b2145ffb034647a749a32c.exe
    "C:\Users\Admin\AppData\Local\Temp\203bf83af83c43502e70b48f0e38ec3a4ad5ae3270b2145ffb034647a749a32c.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4680
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "8u19" /tr '"C:\Users\Admin\AppData\Roaming\8u19.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4244
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "8u19" /tr '"C:\Users\Admin\AppData\Roaming\8u19.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:1256
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp62F6.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2960
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:1144
      • C:\Users\Admin\AppData\Roaming\8u19.exe
        "C:\Users\Admin\AppData\Roaming\8u19.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:4644
  • C:\Users\Admin\AppData\Roaming\8u19.exe
    "C:\Users\Admin\AppData\Roaming\8u19.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:1196

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        tmp62F6.tmp.bat
        • Path C:\Users\Admin\AppData\Local\Temp\tmp62F6.tmp.bat
        • Size 148B
        • SHA256 271d666cbdadcdbb6982f7445d05ad766aa8d6c8791a1527db93f5242fda7db9
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        8u19.exe
        • Path C:\Users\Admin\AppData\Roaming\8u19.exe
        • Size 45KB
        • SHA256 203bf83af83c43502e70b48f0e38ec3a4ad5ae3270b2145ffb034647a749a32c
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/1196-12-0x0000000074F20000-0x00000000756DC000-memory.dmp
        Download

        memory/1196-14-0x0000000074F20000-0x00000000756DC000-memory.dmp
        Download

        memory/4680-0-0x0000000075122000-0x0000000075123000-memory.dmp
        Download

        memory/4680-1-0x0000000000F70000-0x0000000000F82000-memory.dmp
        Download

        memory/4680-2-0x0000000075110000-0x00000000758CC000-memory.dmp
        Download

        memory/4680-3-0x0000000005B70000-0x0000000005C0C000-memory.dmp
        Download

        memory/4680-8-0x0000000075110000-0x00000000758CC000-memory.dmp
        Download