Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    03/08/2026, 11:52

General

  • Target
    5143c7367f217d36fb19ba65b62dfb7a053415e4f1aad94e19c6108972b017fb.exe
  • Size 45KB
  • Sample260803-n1wsvsgh84
  • SHA256 5143c7367f217d36fb19ba65b62dfb7a053415e4f1aad94e19c6108972b017fb
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • phimsexvnn.com:80

  • phimsexvnn.com:22

  • phimsexvnn.com:8080

  • phimsexvnn.com:8880

  • phimsexvnn.com:2052

  • phimsexvnn.com:2082

  • phimsexvnn.com:2086

  • phimsexvnn.com:2095

  • phimsexvnn.com:443

  • phimsexvnn.com:2053

  • phimsexvnn.com:2083

  • phimsexvnn.com:2087

  • phimsexvnn.com:2096

  • phimsexvnn.com:8443

  • www.phimsexvnn.com:80

  • www.phimsexvnn.com:22

  • www.phimsexvnn.com:8080

  • www.phimsexvnn.com:8880

  • www.phimsexvnn.com:2052

  • www.phimsexvnn.com:2082

Mutex
  • mPEBuE0x6mwW

Attributes
  • delay

    0

  • install

    true

  • install_file

    qfdmy0.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
  • Outbound SSH connection to public host 2 TTPs 2 IoCs

    SSH is used for remote access. This may indicate SSH host discovery, encrypted C2 traffic, or data exfiltration.

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\5143c7367f217d36fb19ba65b62dfb7a053415e4f1aad94e19c6108972b017fb.exe
    "C:\Users\Admin\AppData\Local\Temp\5143c7367f217d36fb19ba65b62dfb7a053415e4f1aad94e19c6108972b017fb.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5588
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "qfdmy0" /tr '"C:\Users\Admin\AppData\Roaming\qfdmy0.exe"' & exit
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1632
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "qfdmy0" /tr '"C:\Users\Admin\AppData\Roaming\qfdmy0.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:5516
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp55E6.tmp.bat""
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2924
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:3216
      • C:\Users\Admin\AppData\Roaming\qfdmy0.exe
        "C:\Users\Admin\AppData\Roaming\qfdmy0.exe"
        3⤵
          PID:2584
    • C:\Users\Admin\AppData\Roaming\qfdmy0.exe
      "C:\Users\Admin\AppData\Roaming\qfdmy0.exe"
      1⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2644

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          tmp55E6.tmp.bat

          • Path C:\Users\Admin\AppData\Local\Temp\tmp55E6.tmp.bat
          • Size 150B
          • SHA256 99a26c4c2f3687494b2bc54f8c5834fcec8cf8f7b6ea66d195bf11210f84604e
          • MD5 SHA1 SHA512 TLSH

          qfdmy0.exe

          • Path C:\Users\Admin\AppData\Roaming\qfdmy0.exe
          • Size 45KB
          • SHA256 5143c7367f217d36fb19ba65b62dfb7a053415e4f1aad94e19c6108972b017fb
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/2644-12-0x00000000748B0000-0x000000007506C000-memory.dmp

          memory/2644-14-0x00000000748B0000-0x000000007506C000-memory.dmp

          memory/5588-0-0x00000000748C2000-0x00000000748C3000-memory.dmp

          memory/5588-1-0x0000000000310000-0x0000000000322000-memory.dmp

          memory/5588-2-0x00000000748B0000-0x000000007506C000-memory.dmp

          memory/5588-3-0x0000000004EA0000-0x0000000004F3C000-memory.dmp

          memory/5588-8-0x00000000748B0000-0x000000007506C000-memory.dmp