Resubmissions

13-01-2025 01:11

250113-bkczla1ldl 10

12-01-2025 12:44

250112-pyjwyssng1 10

11-01-2025 02:25

250111-cwhjwsyqdt 10

Analysis

  • max time kernel
    893s
  • max time network
    429s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-01-2025 12:44

General

  • Target

    153a321e178bc28e0f2c6432763bb44fc47b573596387ec241ca45d8775e12af.exe

  • Size

    175KB

  • MD5

    f69889d705f5d72d65661b48535ae1b3

  • SHA1

    4c8f3cf14130e6519339a370bba4527ecb012cde

  • SHA256

    153a321e178bc28e0f2c6432763bb44fc47b573596387ec241ca45d8775e12af

  • SHA512

    a182272541b22dd58d44db506f0c3368fd0e54d0e616d48b6980563eb12d8d9a377bb0d0272c0c2576d36359f10367e27043d3c3106e5d985be0843112fedb3d

  • SSDEEP

    3072:Ke8p6ewdOIwQx76vK/bvTv0cU+lL/dMlZZUZ0b2gT8wARE+WpCc:66ewwIwQJ6vKX0c5MlYZ0b2R

Malware Config

Extracted

Family

asyncrat

Botnet

Default

C2

127.0.0.1:6606

127.0.0.1:7707

127.0.0.1:8808

https://api.telegram.org/bot6331768257:AAE1Rrc3F4A-nTJkfXEukNBriTate8i72L8/sendMessage?chat_id=5287158069

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#.

  • Asyncrat family
  • StormKitty

    StormKitty is an open source info stealer written in C#.

  • StormKitty payload 1 IoCs
  • Stormkitty family
  • Reads user/profile data of web browsers 3 TTPs

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

  • Drops desktop.ini file(s) 8 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Looks up geolocation information via web service

    Uses a legitimate geolocation service to find the infected system's geolocation info.

  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 6 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • System Network Configuration Discovery: Wi-Fi Discovery 1 TTPs 2 IoCs

    Adversaries may search for information about Wi-Fi networks, such as network names and passwords, on compromised systems.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 25 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\153a321e178bc28e0f2c6432763bb44fc47b573596387ec241ca45d8775e12af.exe
    C:\Users\Admin\AppData\Local\Temp\153a321e178bc28e0f2c6432763bb44fc47b573596387ec241ca45d8775e12af.exe cmd /c %SIGILL% "SIGTERM|DELETE|SIGKILL"
    1⤵
    • Drops desktop.ini file(s)
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2584
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
      2⤵
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Wi-Fi Discovery
      • Suspicious use of WriteProcessMemory
      PID:1476
      • C:\Windows\SysWOW64\chcp.com
        chcp 65001
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4388
      • C:\Windows\SysWOW64\netsh.exe
        netsh wlan show profile
        3⤵
        • Event Triggered Execution: Netsh Helper DLL
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Wi-Fi Discovery
        PID:3484
      • C:\Windows\SysWOW64\findstr.exe
        findstr All
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4680
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4964
      • C:\Windows\SysWOW64\chcp.com
        chcp 65001
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1936
      • C:\Windows\SysWOW64\netsh.exe
        netsh wlan show networks mode=bssid
        3⤵
        • Event Triggered Execution: Netsh Helper DLL
        • System Location Discovery: System Language Discovery
        PID:208

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\0bc93425a1886bc80ecfe1f12a8c70bd\Admin@OFGADUSE_en-US\System\Process.txt

    Filesize

    4KB

    MD5

    5dcda1ff880567cfe371fb97ab369f8e

    SHA1

    378f5092bb59b909dd298d1c99f78032db1ba9ad

    SHA256

    8b5edfca4475947d7d158eb29417e62f0a7e48dcfca0051b79d7afafeaaf3107

    SHA512

    1bad9443e2313a3f905652d07380d79516cdda5cc8113a6e6413133dac4ef3291aa9feae4465123a5f49d47474b86e210ae363a07ddec323899b41d321d46915

  • C:\Users\Admin\AppData\Local\c4c3ed8fd50991c3fcd361a6269e70df\msgid.dat

    Filesize

    1B

    MD5

    cfcd208495d565ef66e7dff9f98764da

    SHA1

    b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

    SHA256

    5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

    SHA512

    31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

  • memory/2584-144-0x0000000074740000-0x0000000074EF0000-memory.dmp

    Filesize

    7.7MB

  • memory/2584-3-0x0000000005930000-0x0000000005996000-memory.dmp

    Filesize

    408KB

  • memory/2584-121-0x000000007474E000-0x000000007474F000-memory.dmp

    Filesize

    4KB

  • memory/2584-2-0x0000000074740000-0x0000000074EF0000-memory.dmp

    Filesize

    7.7MB

  • memory/2584-0-0x000000007474E000-0x000000007474F000-memory.dmp

    Filesize

    4KB

  • memory/2584-145-0x0000000074740000-0x0000000074EF0000-memory.dmp

    Filesize

    7.7MB

  • memory/2584-147-0x0000000006520000-0x00000000065B2000-memory.dmp

    Filesize

    584KB

  • memory/2584-148-0x0000000006B70000-0x0000000007114000-memory.dmp

    Filesize

    5.6MB

  • memory/2584-152-0x00000000064F0000-0x00000000064FA000-memory.dmp

    Filesize

    40KB

  • memory/2584-1-0x0000000000F50000-0x0000000000F82000-memory.dmp

    Filesize

    200KB

  • memory/2584-158-0x0000000074740000-0x0000000074EF0000-memory.dmp

    Filesize

    7.7MB