Analysis

  • max time kernel
    148s
  • max time network
    151s
  • 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, 14:29

General

  • Target
    d0ce939a644a14e7a7e6b2c53e50bd538902f2d7181b81cb477789fdee785253.exe
  • Size 45KB
  • Sample260707-rt355sfv3v
  • SHA256 d0ce939a644a14e7a7e6b2c53e50bd538902f2d7181b81cb477789fdee785253
  • MD5 SHA1 SHA512 SSDEEP TLSH

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
  • pdEaW0QHQE4p

Attributes
  • delay

    0

  • install

    true

  • install_file

    zyj2kne.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
  • 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.

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\d0ce939a644a14e7a7e6b2c53e50bd538902f2d7181b81cb477789fdee785253.exe
    "C:\Users\Admin\AppData\Local\Temp\d0ce939a644a14e7a7e6b2c53e50bd538902f2d7181b81cb477789fdee785253.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2976
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "zyj2kne" /tr '"C:\Users\Admin\AppData\Roaming\zyj2kne.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:6020
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "zyj2kne" /tr '"C:\Users\Admin\AppData\Roaming\zyj2kne.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:4264
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp5431.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:484
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:2896
      • C:\Users\Admin\AppData\Roaming\zyj2kne.exe
        "C:\Users\Admin\AppData\Roaming\zyj2kne.exe"
        3⤵
          PID:2692
    • C:\Users\Admin\AppData\Roaming\zyj2kne.exe
      "C:\Users\Admin\AppData\Roaming\zyj2kne.exe"
      1⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4408

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          tmp5431.tmp.bat

          • Path C:\Users\Admin\AppData\Local\Temp\tmp5431.tmp.bat
          • Size 151B
          • SHA256 c4c86b9b671cf9e5f5ca5ea67143fe836680d89771ef58191a486e75cef583dd
          • MD5 SHA1 SHA512 TLSH

          zyj2kne.exe

          • Path C:\Users\Admin\AppData\Roaming\zyj2kne.exe
          • Size 45KB
          • SHA256 d0ce939a644a14e7a7e6b2c53e50bd538902f2d7181b81cb477789fdee785253
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/2976-0-0x0000000074852000-0x0000000074853000-memory.dmp

          memory/2976-1-0x00000000008F0000-0x0000000000902000-memory.dmp

          memory/2976-2-0x0000000074840000-0x0000000074FFC000-memory.dmp

          memory/2976-3-0x00000000053F0000-0x000000000548C000-memory.dmp

          memory/2976-8-0x0000000074840000-0x0000000074FFC000-memory.dmp

          memory/4408-12-0x0000000074830000-0x0000000074FEC000-memory.dmp

          memory/4408-14-0x0000000074830000-0x0000000074FEC000-memory.dmp