Analysis

  • max time kernel
    149s
  • max time network
    151s
  • 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, 12:48

General

  • Target
    0d3045906e5fec22fd225cf832b3e5d891d80205036831c8ebad9860928e8ea2.exe
  • Size 45KB
  • Sample260907-p133lsvxgz
  • SHA256 0d3045906e5fec22fd225cf832b3e5d891d80205036831c8ebad9860928e8ea2
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • cavengon.blog:80

  • cavengon.blog:22

  • cavengon.blog:8080

  • cavengon.blog:8880

  • cavengon.blog:2052

  • cavengon.blog:2082

  • cavengon.blog:2086

  • cavengon.blog:2095

  • cavengon.blog:443

  • cavengon.blog:2053

  • cavengon.blog:2083

  • cavengon.blog:2087

  • cavengon.blog:2096

  • cavengon.blog:8443

  • www.cavengon.blog:80

  • www.cavengon.blog:22

  • www.cavengon.blog:8080

  • www.cavengon.blog:8880

  • www.cavengon.blog:2052

  • www.cavengon.blog:2082

Mutex
  • jmxh1kW3por8

Attributes
  • delay

    0

  • install

    true

  • install_file

    b2658.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
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Outbound SSH connection to public host 2 TTPs 4 IoCs

    SSH is used for remote access. This may indicate SSH host discovery, encrypted C2 traffic, or data exfiltration.

  • 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\0d3045906e5fec22fd225cf832b3e5d891d80205036831c8ebad9860928e8ea2.exe
    "C:\Users\Admin\AppData\Local\Temp\0d3045906e5fec22fd225cf832b3e5d891d80205036831c8ebad9860928e8ea2.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4600
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "b2658" /tr '"C:\Users\Admin\AppData\Roaming\b2658.exe"' & exit
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2116
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "b2658" /tr '"C:\Users\Admin\AppData\Roaming\b2658.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2828
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp2362.tmp.bat""
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1476
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:4660
      • C:\Users\Admin\AppData\Roaming\b2658.exe
        "C:\Users\Admin\AppData\Roaming\b2658.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:2964
  • C:\Users\Admin\AppData\Roaming\b2658.exe
    "C:\Users\Admin\AppData\Roaming\b2658.exe"
    1⤵
    • Executes dropped EXE
    • Outbound SSH connection to public host
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:4360

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        tmp2362.tmp.bat

        • Path C:\Users\Admin\AppData\Local\Temp\tmp2362.tmp.bat
        • Size 149B
        • SHA256 334d99309332e4eb43959eed334fa58d2cffff5ceda3e83f813fce8ba4fd78f2
        • MD5 SHA1 SHA512 TLSH

        b2658.exe

        • Path C:\Users\Admin\AppData\Roaming\b2658.exe
        • Size 45KB
        • SHA256 0d3045906e5fec22fd225cf832b3e5d891d80205036831c8ebad9860928e8ea2
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/4360-10-0x0000000005350000-0x0000000005360000-memory.dmp

        memory/4360-13-0x0000000005350000-0x0000000005360000-memory.dmp

        memory/4600-0-0x00000000004F0000-0x0000000000502000-memory.dmp

        memory/4600-1-0x0000000004F90000-0x0000000004FA0000-memory.dmp

        memory/4600-2-0x0000000004EB0000-0x0000000004F4C000-memory.dmp