Analysis

  • max time kernel
    60s
  • max time network
    56s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260629-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    29/06/2026, 19:22

General

  • Target
    7d231b5186ccfd6e798ebde5e5b519151beed57a9b495968b32ffc5963eb5367.exe
  • Size 45KB
  • Sample260629-x3nppsdv91
  • SHA256 7d231b5186ccfd6e798ebde5e5b519151beed57a9b495968b32ffc5963eb5367
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • hoanggiaan.net:80

  • hoanggiaan.net:22

  • hoanggiaan.net:8080

  • hoanggiaan.net:8880

  • hoanggiaan.net:2052

  • hoanggiaan.net:2082

  • hoanggiaan.net:2086

  • hoanggiaan.net:2095

  • hoanggiaan.net:443

  • hoanggiaan.net:2053

  • hoanggiaan.net:2083

  • hoanggiaan.net:2087

  • hoanggiaan.net:2096

  • hoanggiaan.net:8443

  • www.hoanggiaan.net:80

  • www.hoanggiaan.net:22

  • www.hoanggiaan.net:8080

  • www.hoanggiaan.net:8880

  • www.hoanggiaan.net:2052

  • www.hoanggiaan.net:2082

Mutex
  • FHoLfW6fJJ0X

Attributes
  • delay

    0

  • install

    true

  • install_file

    b1qil.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 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.

  • 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 27 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7d231b5186ccfd6e798ebde5e5b519151beed57a9b495968b32ffc5963eb5367.exe
    "C:\Users\Admin\AppData\Local\Temp\7d231b5186ccfd6e798ebde5e5b519151beed57a9b495968b32ffc5963eb5367.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:6088
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "b1qil" /tr '"C:\Users\Admin\AppData\Roaming\b1qil.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:5264
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "b1qil" /tr '"C:\Users\Admin\AppData\Roaming\b1qil.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:5448
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpA18.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2164
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:5700
      • C:\Users\Admin\AppData\Roaming\b1qil.exe
        "C:\Users\Admin\AppData\Roaming\b1qil.exe"
        3⤵
          PID:5876
    • C:\Users\Admin\AppData\Roaming\b1qil.exe
      "C:\Users\Admin\AppData\Roaming\b1qil.exe"
      1⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:5664

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          tmpA18.tmp.bat

          • Path C:\Users\Admin\AppData\Local\Temp\tmpA18.tmp.bat
          • Size 148B
          • SHA256 92f5e0e41f96c4fede80dc5b1f4087ead2c16f2ade401cf615b31793eab07c11
          • MD5 SHA1 SHA512 TLSH

          b1qil.exe

          • Path C:\Users\Admin\AppData\Roaming\b1qil.exe
          • Size 45KB
          • SHA256 7d231b5186ccfd6e798ebde5e5b519151beed57a9b495968b32ffc5963eb5367
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/5664-12-0x00000000749D0000-0x000000007518C000-memory.dmp

          memory/5664-14-0x00000000749D0000-0x000000007518C000-memory.dmp

          memory/6088-0-0x0000000074B52000-0x0000000074B53000-memory.dmp

          memory/6088-1-0x0000000000A60000-0x0000000000A72000-memory.dmp

          memory/6088-2-0x0000000074B40000-0x00000000752FC000-memory.dmp

          memory/6088-3-0x00000000055B0000-0x000000000564C000-memory.dmp

          memory/6088-8-0x0000000074B40000-0x00000000752FC000-memory.dmp