Overview

overview

10

Static

static

10

bf75f348a5...5a.exe

windows10-2004-x64

10

bf75f348a5...5a.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    142s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260710-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    10/07/2026, 15:33

Sharing

Copy URL Twitter E-mail
Report Analysis Logs

General

  • Target
    bf75f348a58f1ef0e6ebd9ce019b95ab4edc0e3edd1ec551a308d47a5e6ff35a.exe
  • Size 45KB
  • Sample260710-sy7jsscs4l
  • SHA256 bf75f348a58f1ef0e6ebd9ce019b95ab4edc0e3edd1ec551a308d47a5e6ff35a
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
defaultdefense_evasiondiscoveryexecutionasyncratpersistencerat

Malware Config

Extracted

Family

  • asyncrat

Version

  • 0.5.8

Botnet

  • Default

C2

  • vnphimsexhay.blog:80

  • vnphimsexhay.blog:22

  • vnphimsexhay.blog:8080

  • vnphimsexhay.blog:8880

  • vnphimsexhay.blog:2052

  • vnphimsexhay.blog:2082

  • vnphimsexhay.blog:2086

  • vnphimsexhay.blog:2095

  • vnphimsexhay.blog:443

  • vnphimsexhay.blog:2053

  • vnphimsexhay.blog:2083

  • vnphimsexhay.blog:2087

  • vnphimsexhay.blog:2096

  • vnphimsexhay.blog:8443

  • www.vnphimsexhay.blog:80

  • www.vnphimsexhay.blog:22

  • www.vnphimsexhay.blog:8080

  • www.vnphimsexhay.blog:8880

  • www.vnphimsexhay.blog:2052

  • www.vnphimsexhay.blog:2082

Mutex

  • 81dzYqqhCocJ

Attributes
  • delay

    0

  • install

    true

  • install_file

    y1dh9.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 27 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bf75f348a58f1ef0e6ebd9ce019b95ab4edc0e3edd1ec551a308d47a5e6ff35a.exe
    "C:\Users\Admin\AppData\Local\Temp\bf75f348a58f1ef0e6ebd9ce019b95ab4edc0e3edd1ec551a308d47a5e6ff35a.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2864
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "y1dh9" /tr '"C:\Users\Admin\AppData\Roaming\y1dh9.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4300
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "y1dh9" /tr '"C:\Users\Admin\AppData\Roaming\y1dh9.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:5868
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp64BB.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1156
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:5716
      • C:\Users\Admin\AppData\Roaming\y1dh9.exe
        "C:\Users\Admin\AppData\Roaming\y1dh9.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:5800
  • C:\Users\Admin\AppData\Roaming\y1dh9.exe
    "C:\Users\Admin\AppData\Roaming\y1dh9.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:5740
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k GPSvcGroup
    1⤵
      PID:5448

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          tmp64BB.tmp.bat
          • Path C:\Users\Admin\AppData\Local\Temp\tmp64BB.tmp.bat
          • Size 149B
          • SHA256 30402f196cb530c9c5d7b9114d5fcbf2774a130ffd8b1d516d94f1a175e920cf
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          y1dh9.exe
          • Path C:\Users\Admin\AppData\Roaming\y1dh9.exe
          • Size 45KB
          • SHA256 bf75f348a58f1ef0e6ebd9ce019b95ab4edc0e3edd1ec551a308d47a5e6ff35a
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          memory/2864-0-0x0000000074F92000-0x0000000074F93000-memory.dmp
          Download

          memory/2864-1-0x00000000002A0000-0x00000000002B2000-memory.dmp
          Download

          memory/2864-2-0x0000000074F80000-0x000000007573C000-memory.dmp
          Download

          memory/2864-3-0x0000000004E20000-0x0000000004EBC000-memory.dmp
          Download

          memory/2864-8-0x0000000074F80000-0x000000007573C000-memory.dmp
          Download

          memory/5740-12-0x0000000074E10000-0x00000000755CC000-memory.dmp
          Download

          memory/5740-14-0x0000000074E10000-0x00000000755CC000-memory.dmp
          Download