Analysis

  • max time kernel
    148s
  • max time network
    146s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    23/09/2026, 19:18

General

  • Target
    3a7c16a590a9115023407578dec5f6b37989fbcfa1c8901359235581a7b91434.js
  • Size 780KB
  • Sample260923-xz7cmsaf96
  • SHA256 3a7c16a590a9115023407578dec5f6b37989fbcfa1c8901359235581a7b91434
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 1.0.7

Botnet
  • 23sept1

C2
  • 194.58.47.81:5025

Mutex
  • DcRatMutex_qwqdanchun

Attributes
  • delay

    1

  • install

    false

  • install_folder

    %AppData%

aes.plain

Signatures

  • Family: AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers written in C#.

  • Suspicious use of SetThreadContext 1 IoCs
  • Command and Scripting Interpreter: JavaScript 1 TTPs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Using powershell.exe command.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe C:\Users\Admin\AppData\Local\Temp\3a7c16a590a9115023407578dec5f6b37989fbcfa1c8901359235581a7b91434.js
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:5988
    • C:\Windows\system32\wscript.exe
      "C:\Windows\system32\wscript.exe" //B //NoLogo "C:\Users\Admin\AppData\Local\SpoolCache\ledger20438.js"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3728
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -File "queue77281.ps1"
        3⤵
        • Suspicious use of SetThreadContext
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:3344
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
          C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          PID:3908

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        ledger20438.js

        • Path C:\Users\Admin\AppData\Local\SpoolCache\ledger20438.js
        • Size 780KB
        • SHA256 3a7c16a590a9115023407578dec5f6b37989fbcfa1c8901359235581a7b91434
        • MD5 SHA1 SHA512 SSDEEP TLSH

        queue77281.ps1

        • Path C:\Users\Admin\AppData\Local\SpoolCache\queue77281.ps1
        • Size 95KB
        • SHA256 1ce2eb0d413d5772d4044c905be17b37c658feb4ab4dcfc7acc12eaab03a8c8f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/3344-8-0x0000000004CD0000-0x0000000004CF2000-memory.dmp

        memory/3344-17-0x00000000072C0000-0x000000000793C000-memory.dmp

        memory/3344-6-0x0000000004ED0000-0x000000000551A000-memory.dmp

        memory/3344-7-0x00000000746F0000-0x0000000074EAC000-memory.dmp

        memory/3344-4-0x00000000025C0000-0x00000000025F6000-memory.dmp

        memory/3344-9-0x0000000005520000-0x0000000005586000-memory.dmp

        memory/3344-10-0x0000000005590000-0x00000000055F6000-memory.dmp

        memory/3344-13-0x0000000005600000-0x000000000595B000-memory.dmp

        memory/3344-14-0x0000000005A60000-0x0000000005A7E000-memory.dmp

        memory/3344-18-0x0000000006C40000-0x0000000006C5A000-memory.dmp

        memory/3344-5-0x00000000746F0000-0x0000000074EAC000-memory.dmp

        memory/3344-3-0x0000000074702000-0x0000000074703000-memory.dmp

        memory/3344-15-0x0000000005AD0000-0x0000000005B1C000-memory.dmp

        memory/3344-19-0x0000000006D60000-0x0000000006DF6000-memory.dmp

        memory/3344-20-0x0000000006CF0000-0x0000000006D12000-memory.dmp

        memory/3344-21-0x0000000007F00000-0x00000000084BA000-memory.dmp

        memory/3344-22-0x0000000006E50000-0x0000000006E9A000-memory.dmp

        memory/3344-23-0x0000000006F10000-0x0000000006F2A000-memory.dmp

        memory/3344-24-0x0000000006F40000-0x0000000006F48000-memory.dmp

        memory/3344-27-0x00000000746F0000-0x0000000074EAC000-memory.dmp

        memory/3908-25-0x0000000000400000-0x0000000000412000-memory.dmp

        memory/3908-30-0x00000000060A0000-0x000000000613C000-memory.dmp