Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    07/09/2026, 19:07

General

  • Target
    cfd6990db879a7a3aec1c0ce39563b454298b3a26451c89af9372694bc9493a1.exe
  • Size 45KB
  • Sample260907-xsqfjsteqa
  • SHA256 cfd6990db879a7a3aec1c0ce39563b454298b3a26451c89af9372694bc9493a1
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • vlxxtv.org:80

  • vlxxtv.org:22

  • vlxxtv.org:8080

  • vlxxtv.org:8880

  • vlxxtv.org:2052

  • vlxxtv.org:2082

  • vlxxtv.org:2086

  • vlxxtv.org:2095

  • vlxxtv.org:443

  • vlxxtv.org:2053

  • vlxxtv.org:2083

  • vlxxtv.org:2087

  • vlxxtv.org:2096

  • vlxxtv.org:8443

  • www.vlxxtv.org:80

  • www.vlxxtv.org:22

  • www.vlxxtv.org:8080

  • www.vlxxtv.org:8880

  • www.vlxxtv.org:2052

  • www.vlxxtv.org:2082

Mutex
  • GdqwfDoM2rYA

Attributes
  • delay

    0

  • install

    true

  • install_file

    o88d.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 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 2 IoCs
  • 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 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 23 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cfd6990db879a7a3aec1c0ce39563b454298b3a26451c89af9372694bc9493a1.exe
    "C:\Users\Admin\AppData\Local\Temp\cfd6990db879a7a3aec1c0ce39563b454298b3a26451c89af9372694bc9493a1.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4460
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "o88d" /tr '"C:\Users\Admin\AppData\Roaming\o88d.exe"' & exit
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3252
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "o88d" /tr '"C:\Users\Admin\AppData\Roaming\o88d.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:1388
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp483F.tmp.bat""
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3740
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:1900
      • C:\Users\Admin\AppData\Roaming\o88d.exe
        "C:\Users\Admin\AppData\Roaming\o88d.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:2952
  • C:\Users\Admin\AppData\Roaming\o88d.exe
    "C:\Users\Admin\AppData\Roaming\o88d.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:768

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        tmp483F.tmp.bat

        • Path C:\Users\Admin\AppData\Local\Temp\tmp483F.tmp.bat
        • Size 148B
        • SHA256 5be63a6b96a4e0922dc982576852ad07477c7e892ae77a21ea4621c266709da7
        • MD5 SHA1 SHA512 TLSH

        o88d.exe

        • Path C:\Users\Admin\AppData\Roaming\o88d.exe
        • Size 45KB
        • SHA256 cfd6990db879a7a3aec1c0ce39563b454298b3a26451c89af9372694bc9493a1
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/768-10-0x0000000004CF0000-0x0000000004D00000-memory.dmp

        memory/768-13-0x0000000004CF0000-0x0000000004D00000-memory.dmp

        memory/4460-0-0x0000000000C20000-0x0000000000C32000-memory.dmp

        memory/4460-1-0x0000000005560000-0x0000000005570000-memory.dmp

        memory/4460-2-0x0000000005610000-0x00000000056AC000-memory.dmp