Overview

overview

10

Static

static

10

537ad88805...08.exe

windows10-2004-x64

10

537ad88805...08.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    01/08/2026, 08:17

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General

  • Target
    537ad8880520ef3e3d0621a049b6b3cfc6a42ce347cbe7c4a52334f84ffc0a08.exe
  • Size 45KB
  • Sample260801-j68bma1dqa
  • SHA256 537ad8880520ef3e3d0621a049b6b3cfc6a42ce347cbe7c4a52334f84ffc0a08
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
defaultdefense_evasiondiscoveryexecutionasyncratpersistencerat

Malware Config

Extracted

Family

  • asyncrat

Version

  • 0.5.8

Botnet

  • Default

C2

  • chinaav.club:80

  • chinaav.club:22

  • chinaav.club:8080

  • chinaav.club:8880

  • chinaav.club:2052

  • chinaav.club:2082

  • chinaav.club:2086

  • chinaav.club:2095

  • chinaav.club:443

  • chinaav.club:2053

  • chinaav.club:2083

  • chinaav.club:2087

  • chinaav.club:2096

  • chinaav.club:8443

  • www.chinaav.club:80

  • www.chinaav.club:22

  • www.chinaav.club:8080

  • www.chinaav.club:8880

  • www.chinaav.club:2052

  • www.chinaav.club:2082

Mutex

  • CrEHgHuXUB0g

Attributes
  • delay

    0

  • install

    true

  • install_file

    zfx98f5.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).

  • Executes a command shell one-liner 1 TTPs 2 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

    execution
  • 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 31 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\537ad8880520ef3e3d0621a049b6b3cfc6a42ce347cbe7c4a52334f84ffc0a08.exe
    "C:\Users\Admin\AppData\Local\Temp\537ad8880520ef3e3d0621a049b6b3cfc6a42ce347cbe7c4a52334f84ffc0a08.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3872
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "zfx98f5" /tr '"C:\Users\Admin\AppData\Roaming\zfx98f5.exe"' & exit
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3628
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "zfx98f5" /tr '"C:\Users\Admin\AppData\Roaming\zfx98f5.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:3376
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpAE47.tmp.bat""
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:5984
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:1260
      • C:\Users\Admin\AppData\Roaming\zfx98f5.exe
        "C:\Users\Admin\AppData\Roaming\zfx98f5.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:4064
  • C:\Users\Admin\AppData\Roaming\zfx98f5.exe
    "C:\Users\Admin\AppData\Roaming\zfx98f5.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:4404
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k GPSvcGroup
    1⤵
      PID:2548

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          tmpAE47.tmp.bat
          • Path C:\Users\Admin\AppData\Local\Temp\tmpAE47.tmp.bat
          • Size 151B
          • SHA256 66580ad2b17fd0c4332d0be0df33e7c298ebe486a7aaac8a55c7ebf1b8711396
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          zfx98f5.exe
          • Path C:\Users\Admin\AppData\Roaming\zfx98f5.exe
          • Size 45KB
          • SHA256 537ad8880520ef3e3d0621a049b6b3cfc6a42ce347cbe7c4a52334f84ffc0a08
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          memory/3872-0-0x0000000074A42000-0x0000000074A43000-memory.dmp
          Download

          memory/3872-1-0x0000000000CA0000-0x0000000000CB2000-memory.dmp
          Download

          memory/3872-2-0x0000000074A30000-0x00000000751EC000-memory.dmp
          Download

          memory/3872-3-0x0000000005800000-0x000000000589C000-memory.dmp
          Download

          memory/3872-8-0x0000000074A30000-0x00000000751EC000-memory.dmp
          Download

          memory/4404-12-0x00000000748C0000-0x000000007507C000-memory.dmp
          Download

          memory/4404-14-0x00000000748C0000-0x000000007507C000-memory.dmp
          Download