Overview

overview

10

Static

static

10

Password B...er.exe

windows10-1703-x64

10

Analysis

  • max time kernel
    198s
  • max time network
    209s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    23-07-2024 08:24

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General

  • Target

    Password Bruteforcer.exe

  • Size

    82KB

  • MD5

    401cdb3441eaa85c7d5d85b8cfe0fe54

  • SHA1

    6bbb659c5c2b30c24313efa7a3775b78cbf385c5

  • SHA256

    f1cf79e0ebbb693d10ca8b96d6c6aae0176c3a3417512bacaf0016207e60492d

  • SHA512

    fb70afc7e5a382b3970cf92feaa12c4cfeba7a7dbca0d0f8736b5a38c0e4c42204cf4975081eab940524332fd3067bc4d5da053b55e71f983e01bc20454822bf

  • SSDEEP

    1536:x6UzwcxbUTCrmPMVAsP1K4I3H1bL/2sQzcH33LjVclN:wU0cxbgwmPMVA8wBH1bLesQK33LJY

Score
10/10
asyncratdefaultrat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Default

C2

127.0.0.1:4449

127.0.0.1:9001

91.92.254.89:4449

91.92.254.89:9001
Mutex

fefewfewfewf

Attributes
  • delay

    1

  • install

    true

  • install_file

    Realltek Audio Service 86x.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

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

    ratasyncrat
  • Async RAT payload 1 IoCs
    rat
  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Delays execution with timeout.exe 1 IoCs
    evasion
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

    persistenceexecution
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 10 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\Password Bruteforcer.exe
    "C:\Users\Admin\AppData\Local\Temp\Password Bruteforcer.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4616
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Realltek Audio Service 86x" /tr '"C:\Users\Admin\AppData\Roaming\Realltek Audio Service 86x.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:508
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "Realltek Audio Service 86x" /tr '"C:\Users\Admin\AppData\Roaming\Realltek Audio Service 86x.exe"'
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:3912
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp6206.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4136
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:2460
      • C:\Users\Admin\AppData\Roaming\Realltek Audio Service 86x.exe
        "C:\Users\Admin\AppData\Roaming\Realltek Audio Service 86x.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:3608
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:4588

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmp6206.tmp.bat
      Filesize

      170B

      MD5

      464f4a8abab9df55e532c291b736c734

      SHA1

      6cbeef59e9421a1a3d04d430835c260451d030ec

      SHA256

      7545d5ae8b14e88893bd49d560cae35b010a1b4ea05e634ef67fa70fec047658

      SHA512

      783f9eb37240accb7f2c3e1c5d51ca11956e3a78df561815bf2fb61b0ee916c3e943f7b02933e1efb9bbd69d85f5ec0d434a633461e834dda1cc99b709ba15ec

      Download Submit

    • C:\Users\Admin\AppData\Roaming\MyData\DataLogs.conf
      Filesize

      8B

      MD5

      cf759e4c5f14fe3eec41b87ed756cea8

      SHA1

      c27c796bb3c2fac929359563676f4ba1ffada1f5

      SHA256

      c9f9f193409217f73cc976ad078c6f8bf65d3aabcf5fad3e5a47536d47aa6761

      SHA512

      c7f832aee13a5eb36d145f35d4464374a9e12fa2017f3c2257442d67483b35a55eccae7f7729243350125b37033e075efbc2303839fd86b81b9b4dca3626953b

      Download Submit

    • C:\Users\Admin\AppData\Roaming\Realltek Audio Service 86x.exe
      Filesize

      82KB

      MD5

      401cdb3441eaa85c7d5d85b8cfe0fe54

      SHA1

      6bbb659c5c2b30c24313efa7a3775b78cbf385c5

      SHA256

      f1cf79e0ebbb693d10ca8b96d6c6aae0176c3a3417512bacaf0016207e60492d

      SHA512

      fb70afc7e5a382b3970cf92feaa12c4cfeba7a7dbca0d0f8736b5a38c0e4c42204cf4975081eab940524332fd3067bc4d5da053b55e71f983e01bc20454822bf

      Download Submit

    • memory/4616-0-0x00007FFAB4883000-0x00007FFAB4884000-memory.dmp

      Filesize

      4KB

      Download

    • memory/4616-1-0x0000000000B60000-0x0000000000B7A000-memory.dmp

      Filesize

      104KB

      Download

    • memory/4616-3-0x00007FFAB4880000-0x00007FFAB526C000-memory.dmp

      Filesize

      9.9MB

      Download

    • memory/4616-4-0x00007FFAB4880000-0x00007FFAB526C000-memory.dmp

      Filesize

      9.9MB

      Download

    • memory/4616-9-0x00007FFAB4880000-0x00007FFAB526C000-memory.dmp

      Filesize

      9.9MB

      Download