Analysis

  • max time kernel
    148s
  • max time network
    148s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260710-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    12/07/2026, 02:49

General

  • Target
    ad930e5216f718569317435b0787076d57712d2f011322cfff4537edd6a2605e.exe
  • Size 45KB
  • Sample260712-da8dvsb17n
  • SHA256 ad930e5216f718569317435b0787076d57712d2f011322cfff4537edd6a2605e
  • 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
  • f5oqZeC15HmW

Attributes
  • delay

    0

  • install

    true

  • install_file

    83yfqbbc.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\ad930e5216f718569317435b0787076d57712d2f011322cfff4537edd6a2605e.exe
    "C:\Users\Admin\AppData\Local\Temp\ad930e5216f718569317435b0787076d57712d2f011322cfff4537edd6a2605e.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2660
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "83yfqbbc" /tr '"C:\Users\Admin\AppData\Roaming\83yfqbbc.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2572
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "83yfqbbc" /tr '"C:\Users\Admin\AppData\Roaming\83yfqbbc.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:3528
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpDF20.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1584
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:940
      • C:\Users\Admin\AppData\Roaming\83yfqbbc.exe
        "C:\Users\Admin\AppData\Roaming\83yfqbbc.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:2368
  • C:\Users\Admin\AppData\Roaming\83yfqbbc.exe
    "C:\Users\Admin\AppData\Roaming\83yfqbbc.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:5196

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        tmpDF20.tmp.bat

        • Path C:\Users\Admin\AppData\Local\Temp\tmpDF20.tmp.bat
        • Size 152B
        • SHA256 694742efa5857e5c1af172d6c007dd06a3f3876a9fb28d8886031635a86fe246
        • MD5 SHA1 SHA512 TLSH

        83yfqbbc.exe

        • Path C:\Users\Admin\AppData\Roaming\83yfqbbc.exe
        • Size 45KB
        • SHA256 ad930e5216f718569317435b0787076d57712d2f011322cfff4537edd6a2605e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2660-0-0x0000000074E62000-0x0000000074E63000-memory.dmp

        memory/2660-1-0x0000000000560000-0x0000000000572000-memory.dmp

        memory/2660-2-0x0000000074E50000-0x000000007560C000-memory.dmp

        memory/2660-3-0x00000000050E0000-0x000000000517C000-memory.dmp

        memory/2660-8-0x0000000074E50000-0x000000007560C000-memory.dmp

        memory/5196-12-0x0000000074CE0000-0x000000007549C000-memory.dmp

        memory/5196-14-0x0000000074CE0000-0x000000007549C000-memory.dmp