Overview

overview

10

Static

static

3

ad.exe

windows7-x64

1

ad.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    140s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/04/2024, 12:16

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General

  • Target
    ad.exe
  • Size 342KB
  • Sample240430-pfxp4abf52
  • SHA256 818570cb0770ca9bcf40e5849f1067963e9b1658da25711456730c8ba28f55d9
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
asyncratdefaultrat

Malware Config

Extracted

Family

  • asyncrat

Version

  • Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

  • Default

Mutex

  • hlcdwlfosssonxtzfkj

Attributes
  • delay

    1

  • install

    true

  • install_file

    new.exe

  • install_folder

    %AppData%

  • pastebin_config

    https://pastebin.com/raw/XV69qkyV

aes.plain

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers written in C#.

    ratasyncrat
  • Async RAT payload 1 IoCs
    rat
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 9 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistence
  • Delays execution with timeout.exe 1 IoCs
    evasion
  • Suspicious behavior: EnumeratesProcesses 44 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

    persistence

Processes

  • C:\Users\Admin\AppData\Local\Temp\ad.exe
    "C:\Users\Admin\AppData\Local\Temp\ad.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2552
    • C:\Windows\SYSTEM32\notepad.exe
      notepad.exe
      2⤵
        PID:4512
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "new" /tr '"C:\Users\Admin\AppData\Roaming\new.exe"' & exit
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4008
        • C:\Windows\system32\schtasks.exe
          schtasks /create /f /sc onlogon /rl highest /tn "new" /tr '"C:\Users\Admin\AppData\Roaming\new.exe"'
          3⤵
          • Creates scheduled task(s)
          PID:2236
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp5525.tmp.bat""
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:5072
        • C:\Windows\system32\timeout.exe
          timeout 3
          3⤵
          • Delays execution with timeout.exe
          PID:3576
        • C:\Users\Admin\AppData\Roaming\new.exe
          "C:\Users\Admin\AppData\Roaming\new.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:4472
          • C:\Windows\SYSTEM32\notepad.exe
            notepad.exe
            4⤵
              PID:4896

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            tmp5525.tmp.bat
            • Path C:\Users\Admin\AppData\Local\Temp\tmp5525.tmp.bat
            • Size 147B
            • SHA256 be027285de801752c75d702cd5447e3ee521429c8c9fbac287237e65f07f605e
            • MD5 SHA1 SHA512
            Submit Download

            DataLogs.conf
            • Path C:\Users\Admin\AppData\Roaming\MyData\DataLogs.conf
            • Size 8B
            • SHA256 c9f9f193409217f73cc976ad078c6f8bf65d3aabcf5fad3e5a47536d47aa6761
            • MD5 SHA1 SHA512
            Submit Download

            new.exe
            • Path C:\Users\Admin\AppData\Roaming\new.exe
            • Size 342KB
            • SHA256 818570cb0770ca9bcf40e5849f1067963e9b1658da25711456730c8ba28f55d9
            • MD5 SHA1 SHA512 SSDEEP
            Submit Download

            memory/2552-2-0x00000183EB930000-0x00000183EB94C000-memory.dmp
            Download

            memory/2552-0-0x00007FF9ABBB0000-0x00007FF9ABDA5000-memory.dmp
            Download

            memory/2552-3-0x00000183EBA60000-0x00000183EBA78000-memory.dmp
            Download

            memory/2552-5-0x00007FF98DBB0000-0x00007FF98E671000-memory.dmp
            Download

            memory/2552-7-0x00000183EC550000-0x00000183EC560000-memory.dmp
            Download

            memory/2552-6-0x00000183EC550000-0x00000183EC560000-memory.dmp
            Download

            memory/2552-13-0x00007FF9ABBB0000-0x00007FF9ABDA5000-memory.dmp
            Download

            memory/2552-14-0x00007FF98DBB0000-0x00007FF98E671000-memory.dmp
            Download

            memory/4472-19-0x00007FF9ABBB0000-0x00007FF9ABDA5000-memory.dmp
            Download