Analysis

  • max time kernel
    148s
  • max time network
    147s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    14/07/2026, 15:02

General

  • Target
    b064262dc0d113ed36b34f274a32a00f096f190bfccbf668ed1220396f1c3297.exe
  • Size 45KB
  • Sample260714-senmksft2n
  • SHA256 b064262dc0d113ed36b34f274a32a00f096f190bfccbf668ed1220396f1c3297
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • javsub.blog:80

  • javsub.blog:22

  • javsub.blog:8080

  • javsub.blog:8880

  • javsub.blog:2052

  • javsub.blog:2082

  • javsub.blog:2086

  • javsub.blog:2095

  • javsub.blog:443

  • javsub.blog:2053

  • javsub.blog:2083

  • javsub.blog:2087

  • javsub.blog:2096

  • javsub.blog:8443

  • www.javsub.blog:80

  • www.javsub.blog:22

  • www.javsub.blog:8080

  • www.javsub.blog:8880

  • www.javsub.blog:2052

  • www.javsub.blog:2082

Mutex
  • QKzNI7Iy0vuW

Attributes
  • delay

    0

  • install

    true

  • install_file

    xzwy1k.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 29 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b064262dc0d113ed36b34f274a32a00f096f190bfccbf668ed1220396f1c3297.exe
    "C:\Users\Admin\AppData\Local\Temp\b064262dc0d113ed36b34f274a32a00f096f190bfccbf668ed1220396f1c3297.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5180
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "xzwy1k" /tr '"C:\Users\Admin\AppData\Roaming\xzwy1k.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4160
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "xzwy1k" /tr '"C:\Users\Admin\AppData\Roaming\xzwy1k.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:4848
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp2F63.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3104
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:3924
      • C:\Users\Admin\AppData\Roaming\xzwy1k.exe
        "C:\Users\Admin\AppData\Roaming\xzwy1k.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:4872
  • C:\Users\Admin\AppData\Roaming\xzwy1k.exe
    "C:\Users\Admin\AppData\Roaming\xzwy1k.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:1852

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        tmp2F63.tmp.bat

        • Path C:\Users\Admin\AppData\Local\Temp\tmp2F63.tmp.bat
        • Size 150B
        • SHA256 380f582fa9821f6e2e3367d78d348ee13b9343a3e4cf67ec83f8621e4c2232d8
        • MD5 SHA1 SHA512 TLSH

        xzwy1k.exe

        • Path C:\Users\Admin\AppData\Roaming\xzwy1k.exe
        • Size 45KB
        • SHA256 b064262dc0d113ed36b34f274a32a00f096f190bfccbf668ed1220396f1c3297
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1852-12-0x0000000074650000-0x0000000074E0C000-memory.dmp

        memory/1852-14-0x0000000074650000-0x0000000074E0C000-memory.dmp

        memory/5180-0-0x00000000747D2000-0x00000000747D3000-memory.dmp

        memory/5180-1-0x0000000000C00000-0x0000000000C12000-memory.dmp

        memory/5180-2-0x00000000747C0000-0x0000000074F7C000-memory.dmp

        memory/5180-3-0x0000000005710000-0x00000000057AC000-memory.dmp

        memory/5180-8-0x00000000747C0000-0x0000000074F7C000-memory.dmp