Analysis

  • max time kernel
    60s
  • max time network
    56s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    27/10/2026, 19:02

General

  • Target
    b3032402e2c698424f100690855bf51b05d17daae56154fedb69a836202101fc.exe
  • Size 111KB
  • Sample261027-xp3lpsft6v
  • SHA256 b3032402e2c698424f100690855bf51b05d17daae56154fedb69a836202101fc
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • f1680dangkybet.com:80

  • f1680dangkybet.com:443

  • www.f1680dangkybet.com:80

  • www.f1680dangkybet.com:443

Mutex
  • MrxScGfgWCNC

Attributes
  • delay

    3

  • install

    true

  • install_file

    Malware.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
  • 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.

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • 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\b3032402e2c698424f100690855bf51b05d17daae56154fedb69a836202101fc.exe
    "C:\Users\Admin\AppData\Local\Temp\b3032402e2c698424f100690855bf51b05d17daae56154fedb69a836202101fc.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4976
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Malware" /tr '"C:\Users\Admin\AppData\Roaming\Malware.exe"' & exit
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4524
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "Malware" /tr '"C:\Users\Admin\AppData\Roaming\Malware.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2296
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp8596.tmp.bat""
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4556
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:2356
      • C:\Users\Admin\AppData\Roaming\Malware.exe
        "C:\Users\Admin\AppData\Roaming\Malware.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:5084
  • C:\Users\Admin\AppData\Roaming\Malware.exe
    "C:\Users\Admin\AppData\Roaming\Malware.exe"
    1⤵
    • Executes dropped EXE
    • Reads the TCP/IP host and domain name from the registry
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:3544

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        tmp8596.tmp.bat

        • Path C:\Users\Admin\AppData\Local\Temp\tmp8596.tmp.bat
        • Size 151B
        • SHA256 a0fa3bebefac663b8045dc405a5ba71bb0d00a54a6da0976483309b294fc8b94
        • MD5 SHA1 SHA512 TLSH

        Malware.exe

        • Path C:\Users\Admin\AppData\Roaming\Malware.exe
        • Size 111KB
        • SHA256 b3032402e2c698424f100690855bf51b05d17daae56154fedb69a836202101fc
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/4976-0-0x0000000000B30000-0x0000000000B52000-memory.dmp

        memory/4976-1-0x0000000005590000-0x00000000055A0000-memory.dmp

        memory/4976-2-0x00000000055A0000-0x000000000563C000-memory.dmp