Analysis

  • max time kernel
    6s
  • max time network
    150s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    14/07/2026, 17:01

General

  • Target
    46e457bb9f8a98000ea0b8a7b27e9f3a379558a5171a09a7d7ceef2e5b95f89f.exe
  • Size 45KB
  • Sample260714-vj2fcahs2j
  • SHA256 46e457bb9f8a98000ea0b8a7b27e9f3a379558a5171a09a7d7ceef2e5b95f89f
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • sexviet11.com:80

  • sexviet11.com:22

  • sexviet11.com:8080

  • sexviet11.com:8880

  • sexviet11.com:2052

  • sexviet11.com:2082

  • sexviet11.com:2086

  • sexviet11.com:2095

  • sexviet11.com:443

  • sexviet11.com:2053

  • sexviet11.com:2083

  • sexviet11.com:2087

  • sexviet11.com:2096

  • sexviet11.com:8443

  • www.sexviet11.com:80

  • www.sexviet11.com:22

  • www.sexviet11.com:8080

  • www.sexviet11.com:8880

  • www.sexviet11.com:2052

  • www.sexviet11.com:2082

Mutex
  • zps7guMWnEAv

Attributes
  • delay

    0

  • install

    true

  • install_file

    5uk2.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).

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\46e457bb9f8a98000ea0b8a7b27e9f3a379558a5171a09a7d7ceef2e5b95f89f.exe
    "C:\Users\Admin\AppData\Local\Temp\46e457bb9f8a98000ea0b8a7b27e9f3a379558a5171a09a7d7ceef2e5b95f89f.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3096
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "5uk2" /tr '"C:\Users\Admin\AppData\Roaming\5uk2.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2908
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "5uk2" /tr '"C:\Users\Admin\AppData\Roaming\5uk2.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2356
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpB329.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2768
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:5384
      • C:\Users\Admin\AppData\Roaming\5uk2.exe
        "C:\Users\Admin\AppData\Roaming\5uk2.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:3300
  • C:\Users\Admin\AppData\Roaming\5uk2.exe
    "C:\Users\Admin\AppData\Roaming\5uk2.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:4580
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k GPSvcGroup
    1⤵
      PID:4648

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          tmpB329.tmp.bat

          • Path C:\Users\Admin\AppData\Local\Temp\tmpB329.tmp.bat
          • Size 148B
          • SHA256 85b6f2411a2821e978067a8164c328b3c78d07ab809c7e9d9c911b98f472ccc7
          • MD5 SHA1 SHA512 TLSH

          5uk2.exe

          • Path C:\Users\Admin\AppData\Roaming\5uk2.exe
          • Size 45KB
          • SHA256 46e457bb9f8a98000ea0b8a7b27e9f3a379558a5171a09a7d7ceef2e5b95f89f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/3096-0-0x0000000074A42000-0x0000000074A43000-memory.dmp

          memory/3096-1-0x0000000000BF0000-0x0000000000C02000-memory.dmp

          memory/3096-2-0x0000000074A30000-0x00000000751EC000-memory.dmp

          memory/3096-3-0x0000000005610000-0x00000000056AC000-memory.dmp

          memory/3096-8-0x0000000074A30000-0x00000000751EC000-memory.dmp

          memory/4580-12-0x0000000074860000-0x000000007501C000-memory.dmp

          memory/4580-14-0x0000000074860000-0x000000007501C000-memory.dmp