Analysis

  • max time kernel
    90s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24/04/2023, 18:11

General

  • Target
    stub.exe
  • Size 66KB
  • Sample230424-ws2cdafd5v
  • SHA256 fb11be4f9b79350a9b1e70ef3e835d0c066f15ea84424bc639e0fc70227d05a3
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • asyncrat

Version
  • | Edit 3LOSH RAT

Botnet
  • Default

C2
  • mikedonohue.kozow.com:30305

Mutex
  • AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

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

  • Async RAT payload 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\stub.exe
    "C:\Users\Admin\AppData\Local\Temp\stub.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    PID:4636

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/4636-133-0x0000000000770000-0x0000000000786000-memory.dmp

        memory/4636-134-0x0000000005150000-0x0000000005160000-memory.dmp

        memory/4636-135-0x0000000005A10000-0x0000000005FB4000-memory.dmp

        memory/4636-136-0x0000000005600000-0x0000000005692000-memory.dmp

        memory/4636-137-0x00000000055E0000-0x00000000055EA000-memory.dmp

        memory/4636-140-0x0000000006600000-0x000000000669C000-memory.dmp

        memory/4636-141-0x0000000006230000-0x0000000006296000-memory.dmp

        memory/4636-142-0x0000000005150000-0x0000000005160000-memory.dmp