Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    22/07/2026, 17:47

General

  • Target
    86c0333c9875b7ce854273dee725cb88a9ac13697ad8cf37a22ddc66d0d17b68.exe
  • Size 45KB
  • Sample260722-wczhvaej6x
  • SHA256 86c0333c9875b7ce854273dee725cb88a9ac13697ad8cf37a22ddc66d0d17b68
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • phimvnxx.pro:80

  • phimvnxx.pro:22

  • phimvnxx.pro:8080

  • phimvnxx.pro:8880

  • phimvnxx.pro:2052

  • phimvnxx.pro:2082

  • phimvnxx.pro:2086

  • phimvnxx.pro:2095

  • phimvnxx.pro:443

  • phimvnxx.pro:2053

  • phimvnxx.pro:2083

  • phimvnxx.pro:2087

  • phimvnxx.pro:2096

  • phimvnxx.pro:8443

  • www.phimvnxx.pro:80

  • www.phimvnxx.pro:22

  • www.phimvnxx.pro:8080

  • www.phimvnxx.pro:8880

  • www.phimvnxx.pro:2052

  • www.phimvnxx.pro:2082

Mutex
  • DZe4BiDHAm7m

Attributes
  • delay

    0

  • install

    true

  • install_file

    fml5h0.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).

  • 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.

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\86c0333c9875b7ce854273dee725cb88a9ac13697ad8cf37a22ddc66d0d17b68.exe
    "C:\Users\Admin\AppData\Local\Temp\86c0333c9875b7ce854273dee725cb88a9ac13697ad8cf37a22ddc66d0d17b68.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4984
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "fml5h0" /tr '"C:\Users\Admin\AppData\Roaming\fml5h0.exe"' & exit
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:252
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "fml5h0" /tr '"C:\Users\Admin\AppData\Roaming\fml5h0.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:5920
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpC049.tmp.bat""
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4328
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:2900
      • C:\Users\Admin\AppData\Roaming\fml5h0.exe
        "C:\Users\Admin\AppData\Roaming\fml5h0.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:5560
  • C:\Users\Admin\AppData\Roaming\fml5h0.exe
    "C:\Users\Admin\AppData\Roaming\fml5h0.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:5924
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k GPSvcGroup
    1⤵
      PID:5664

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          tmpC049.tmp.bat

          • Path C:\Users\Admin\AppData\Local\Temp\tmpC049.tmp.bat
          • Size 150B
          • SHA256 881b76f1fbf1d2f05bcbd38776bd8172871487605a96a77842909a397ceb4dca
          • MD5 SHA1 SHA512 TLSH

          fml5h0.exe

          • Path C:\Users\Admin\AppData\Roaming\fml5h0.exe
          • Size 45KB
          • SHA256 86c0333c9875b7ce854273dee725cb88a9ac13697ad8cf37a22ddc66d0d17b68
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/4984-0-0x00000000744E2000-0x00000000744E3000-memory.dmp

          memory/4984-1-0x0000000000F40000-0x0000000000F52000-memory.dmp

          memory/4984-2-0x00000000744D0000-0x0000000074C8C000-memory.dmp

          memory/4984-3-0x0000000005AA0000-0x0000000005B3C000-memory.dmp

          memory/4984-8-0x00000000744D0000-0x0000000074C8C000-memory.dmp

          memory/5924-12-0x0000000074360000-0x0000000074B1C000-memory.dmp

          memory/5924-14-0x0000000074360000-0x0000000074B1C000-memory.dmp