Analysis

  • max time kernel
    148s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-10-2024 19:50

General

  • Target

    IChanger.exe

  • Size

    2.6MB

  • MD5

    de70283085ca45f6b19bc3beb373e970

  • SHA1

    30bcdfc110d03006ba0efd89def64628d2715ead

  • SHA256

    e828e2b51c2c5412e66a660792ef393ce52c8e31d41d9c1adcac81367728fea6

  • SHA512

    0e32b346714cf244e24ce0e6515e558c7a29157304e24f14d44ff3488486c19f9f0403fddb48dc6e95a3489eca503697d16c7e0e8e76d0e84264522af3e6d2c1

  • SSDEEP

    49152:vG4DuZSgBVz68epmUAJWrrQiODZXHBdG:e7paboUS1dX3G

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/bot7510720859:AAHJ07lkxNWZwwJs6SC36WS0jVG9IR6m3pM/sendMessage?chat_id=6059920057

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#.

  • StormKitty

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

  • StormKitty payload 2 IoCs
  • Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
  • 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 1 IoCs
  • 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
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

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

  • 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 34 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3452
      • C:\Users\Admin\AppData\Local\Temp\IChanger.exe
        "C:\Users\Admin\AppData\Local\Temp\IChanger.exe"
        2⤵
        • Suspicious use of NtCreateUserProcessOtherParentProcess
        • Checks computer location settings
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2836
        • C:\Users\Admin\AppData\Local\Temp\Setup.exe
          "C:\Users\Admin\AppData\Local\Temp\Setup.exe"
          3⤵
          • Executes dropped EXE
          • 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:4736
          • C:\Windows\SysWOW64\cmd.exe
            "cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
            4⤵
            • System Location Discovery: System Language Discovery
            • System Network Configuration Discovery: Wi-Fi Discovery
            • Suspicious use of WriteProcessMemory
            PID:924
            • C:\Windows\SysWOW64\chcp.com
              chcp 65001
              5⤵
              • System Location Discovery: System Language Discovery
              PID:2836
            • C:\Windows\SysWOW64\netsh.exe
              netsh wlan show profile
              5⤵
              • Event Triggered Execution: Netsh Helper DLL
              • System Location Discovery: System Language Discovery
              • System Network Configuration Discovery: Wi-Fi Discovery
              PID:180
            • C:\Windows\SysWOW64\findstr.exe
              findstr All
              5⤵
              • System Location Discovery: System Language Discovery
              PID:1076
          • C:\Windows\SysWOW64\cmd.exe
            "cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid
            4⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:4876
            • C:\Windows\SysWOW64\chcp.com
              chcp 65001
              5⤵
              • System Location Discovery: System Language Discovery
              PID:4968
            • C:\Windows\SysWOW64\netsh.exe
              netsh wlan show networks mode=bssid
              5⤵
              • Event Triggered Execution: Netsh Helper DLL
              • System Location Discovery: System Language Discovery
              PID:2132
      • C:\Users\Admin\AppData\Local\Temp\IChanger.exe
        "C:\Users\Admin\AppData\Local\Temp\IChanger.exe"
        2⤵
          PID:3204

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\77757401f880293d5eaccc71372ea46e\Admin@GYHASOLS_en-US\Browsers\Firefox\Bookmarks.txt

        Filesize

        105B

        MD5

        2e9d094dda5cdc3ce6519f75943a4ff4

        SHA1

        5d989b4ac8b699781681fe75ed9ef98191a5096c

        SHA256

        c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142

        SHA512

        d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7

      • C:\Users\Admin\AppData\Local\77757401f880293d5eaccc71372ea46e\Admin@GYHASOLS_en-US\System\Process.txt

        Filesize

        4KB

        MD5

        adce58b85ffc04f8ab0a96954c0cb91c

        SHA1

        8c5bcb29f92a27620572e2c0746b91aa96f2f50a

        SHA256

        7a3f85e9b34f9c1bb72175f6a4c61d7dc55312d48dd9caaf49be867a0f270410

        SHA512

        0e67c016e4e4f6fe6d275b999cfd3404296dbb7aced710c7446946949d19b74782b751d3e6731cc05240dc09bafe0299d59e55639e2350da000196568cf950e1

      • C:\Users\Admin\AppData\Local\Temp\Setup.exe

        Filesize

        175KB

        MD5

        bace9f15b0e425259da0470e7ffe5520

        SHA1

        15462fe47362ead5c1e1e43665dc439e6c218c7f

        SHA256

        f4000e61d9c5929e2eab12382d5624fac3f96d3c27c2e42c5f374cc457ee8b4f

        SHA512

        2e0d2c87de91ecd3b95c7c99b4951cfc4a244de04e0b14f364a447c57c51e4c3e15fa3726a26b96bf408cf4e8bd3ba5980f0f8acb2fa757c93ae73f711d8a832

      • C:\Users\Admin\AppData\Local\f84b08a7374ddd2f57075ebb9c0b405b\msgid.dat

        Filesize

        1B

        MD5

        cfcd208495d565ef66e7dff9f98764da

        SHA1

        b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

        SHA256

        5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

        SHA512

        31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

      • memory/2836-1-0x00000000003A0000-0x0000000000632000-memory.dmp

        Filesize

        2.6MB

      • memory/2836-2-0x000000001C6B0000-0x000000001C860000-memory.dmp

        Filesize

        1.7MB

      • memory/2836-29-0x00007FFA7BF20000-0x00007FFA7C9E1000-memory.dmp

        Filesize

        10.8MB

      • memory/2836-43-0x00007FFA7BF20000-0x00007FFA7C9E1000-memory.dmp

        Filesize

        10.8MB

      • memory/2836-0-0x00007FFA7BF23000-0x00007FFA7BF25000-memory.dmp

        Filesize

        8KB

      • memory/3204-41-0x0000000140000000-0x0000000140425000-memory.dmp

        Filesize

        4.1MB

      • memory/3204-40-0x0000000140000000-0x0000000140425000-memory.dmp

        Filesize

        4.1MB

      • memory/4736-44-0x0000000000D20000-0x0000000000D52000-memory.dmp

        Filesize

        200KB

      • memory/4736-194-0x0000000006790000-0x0000000006D34000-memory.dmp

        Filesize

        5.6MB

      • memory/4736-198-0x0000000006260000-0x000000000626A000-memory.dmp

        Filesize

        40KB

      • memory/4736-193-0x0000000006140000-0x00000000061D2000-memory.dmp

        Filesize

        584KB

      • memory/4736-204-0x0000000006270000-0x0000000006282000-memory.dmp

        Filesize

        72KB

      • memory/4736-45-0x0000000005720000-0x0000000005786000-memory.dmp

        Filesize

        408KB