Overview

overview

10

Static

static

10

8f4f6a0c16...e0.exe

windows10-2004-x64

10

8f4f6a0c16...e0.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260706-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260706-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    07/07/2026, 17:29

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General

  • Target
    8f4f6a0c16ef846f5838ef92f44ad609b16fbd4ed20fec0b223811f70882a3e0.exe
  • Size 45KB
  • Sample260707-v23fcsbt7l
  • SHA256 8f4f6a0c16ef846f5838ef92f44ad609b16fbd4ed20fec0b223811f70882a3e0
  • 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

  • GBNmo7AQvRYs

Attributes
  • delay

    0

  • install

    true

  • install_file

    o29sf.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 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.

    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 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8f4f6a0c16ef846f5838ef92f44ad609b16fbd4ed20fec0b223811f70882a3e0.exe
    "C:\Users\Admin\AppData\Local\Temp\8f4f6a0c16ef846f5838ef92f44ad609b16fbd4ed20fec0b223811f70882a3e0.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4604
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "o29sf" /tr '"C:\Users\Admin\AppData\Roaming\o29sf.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2604
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "o29sf" /tr '"C:\Users\Admin\AppData\Roaming\o29sf.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2600
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp84B7.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3008
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:248
      • C:\Users\Admin\AppData\Roaming\o29sf.exe
        "C:\Users\Admin\AppData\Roaming\o29sf.exe"
        3⤵
          PID:5764
    • C:\Users\Admin\AppData\Roaming\o29sf.exe
      "C:\Users\Admin\AppData\Roaming\o29sf.exe"
      1⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2480

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          tmp84B7.tmp.bat
          • Path C:\Users\Admin\AppData\Local\Temp\tmp84B7.tmp.bat
          • Size 149B
          • SHA256 e939ee55bec0171b526b00d172c0417b6d5c5a2dc922b45184052f65e013b6fd
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          o29sf.exe
          • Path C:\Users\Admin\AppData\Roaming\o29sf.exe
          • Size 45KB
          • SHA256 8f4f6a0c16ef846f5838ef92f44ad609b16fbd4ed20fec0b223811f70882a3e0
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          memory/2480-12-0x0000000074C60000-0x000000007541C000-memory.dmp
          Download

          memory/2480-14-0x0000000074C60000-0x000000007541C000-memory.dmp
          Download

          memory/4604-0-0x0000000074C72000-0x0000000074C73000-memory.dmp
          Download

          memory/4604-1-0x0000000000C20000-0x0000000000C32000-memory.dmp
          Download

          memory/4604-2-0x0000000074C60000-0x000000007541C000-memory.dmp
          Download

          memory/4604-3-0x0000000005790000-0x000000000582C000-memory.dmp
          Download

          memory/4604-8-0x0000000074C60000-0x000000007541C000-memory.dmp
          Download