Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    01/06/2026, 17:46

General

  • Target
    26f14367b71956e75fb6ff6930d37dea6517ce0d0bf0853b2047de37b913d3ab.exe
  • Size 45KB
  • Sample260601-wcf2hadv7l
  • SHA256 26f14367b71956e75fb6ff6930d37dea6517ce0d0bf0853b2047de37b913d3ab
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • vnsextop1.com:443

  • vnsextop1.com:80

  • vnsextop1.com:7797

  • vnsextop1.com:8707

  • vnsextop1.com:6620

  • www.vnsextop1.com:443

  • www.vnsextop1.com:80

  • www.vnsextop1.com:7797

  • www.vnsextop1.com:8707

  • www.vnsextop1.com:6620

  • conti.vnsextop1.com:443

  • conti.vnsextop1.com:80

  • conti.vnsextop1.com:7797

  • conti.vnsextop1.com:8707

  • conti.vnsextop1.com:6620

  • gozi.vnsextop1.com:443

  • gozi.vnsextop1.com:80

  • gozi.vnsextop1.com:7797

  • gozi.vnsextop1.com:8707

  • gozi.vnsextop1.com:6620

Mutex
  • Ds1bz5iLFIfU

Attributes
  • delay

    0

  • install

    true

  • install_file

    9wfr.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).

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\26f14367b71956e75fb6ff6930d37dea6517ce0d0bf0853b2047de37b913d3ab.exe
    "C:\Users\Admin\AppData\Local\Temp\26f14367b71956e75fb6ff6930d37dea6517ce0d0bf0853b2047de37b913d3ab.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3416
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "9wfr" /tr '"C:\Users\Admin\AppData\Roaming\9wfr.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4956
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "9wfr" /tr '"C:\Users\Admin\AppData\Roaming\9wfr.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:416
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp2DD1.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4944
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:1228
      • C:\Users\Admin\AppData\Roaming\9wfr.exe
        "C:\Users\Admin\AppData\Roaming\9wfr.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:4880
  • C:\Users\Admin\AppData\Roaming\9wfr.exe
    "C:\Users\Admin\AppData\Roaming\9wfr.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:2264

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        tmp2DD1.tmp.bat

        • Path C:\Users\Admin\AppData\Local\Temp\tmp2DD1.tmp.bat
        • Size 148B
        • SHA256 40eca0ba107fa8b1d05239f258bcfc4015d49694326bef121eb8448968a765cf
        • MD5 SHA1 SHA512 TLSH

        9wfr.exe

        • Path C:\Users\Admin\AppData\Roaming\9wfr.exe
        • Size 45KB
        • SHA256 26f14367b71956e75fb6ff6930d37dea6517ce0d0bf0853b2047de37b913d3ab
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/3416-0-0x00000000002C0000-0x00000000002D2000-memory.dmp

        memory/3416-1-0x0000000004E70000-0x0000000004E80000-memory.dmp

        memory/3416-2-0x0000000004D40000-0x0000000004DDC000-memory.dmp