Analysis

  • max time kernel
    91s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/09/2024, 22:23

General

  • Target
    611cf2be6752c173be1328ea47cc8ea736bc3bda9030da617390b23afa955b47.exe
  • Size 280KB
  • Sample240927-2axjcssfmj
  • SHA256 611cf2be6752c173be1328ea47cc8ea736bc3bda9030da617390b23afa955b47
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • StormKitty

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

  • StormKitty payload 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • 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) 6 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.

  • 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 14 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 39 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\611cf2be6752c173be1328ea47cc8ea736bc3bda9030da617390b23afa955b47.exe
    "C:\Users\Admin\AppData\Local\Temp\611cf2be6752c173be1328ea47cc8ea736bc3bda9030da617390b23afa955b47.exe"
    1⤵
    • Checks computer location settings
    • 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:2872
    • 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:3852
      • C:\Windows\SysWOW64\chcp.com
        chcp 65001
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4984
      • 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:3472
      • C:\Windows\SysWOW64\findstr.exe
        findstr All
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2144
    • 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:2892
      • C:\Windows\SysWOW64\chcp.com
        chcp 65001
        3⤵
        • System Location Discovery: System Language Discovery
        PID:396
      • 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:368
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\BatchSelf.bat" "
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3836
      • C:\Windows\SysWOW64\chcp.com
        chcp 1251
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1448
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C choice /C Y /N /D Y /T 0 &Del 611cf2be6752c173be1328ea47cc8ea736bc3bda9030da617390b23afa955b47.exe
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3196
      • C:\Windows\SysWOW64\choice.exe
        choice /C Y /N /D Y /T 0
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4448
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C choice /C Y /N /D Y /T 1 &Del C:\Users\Admin\AppData\Local\Temp\611cf2be6752c173be1328ea47cc8ea736bc3bda9030da617390b23afa955b47.exe
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2184
      • C:\Windows\SysWOW64\choice.exe
        choice /C Y /N /D Y /T 1
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3396

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        tmpCA3B.tmp.dat

        • Path C:\Users\Admin\AppData\Local\Temp\tmpCA3B.tmp.dat
        • Size 160KB
        • SHA256 e187946249cd390a3c1cf5d4e3b0d8f554f9acdc416bf4e7111fff217bb08855
        • MD5 SHA1 SHA512 SSDEEP

        tmpCA3D.tmp.dat

        • Path C:\Users\Admin\AppData\Local\Temp\tmpCA3D.tmp.dat
        • Size 114KB
        • SHA256 1dc436687ed65d9f2fcda9a68a812346f56f566f7671cbe1be0beaa157045294
        • MD5 SHA1 SHA512 SSDEEP

        tmpCA51.tmp.dat

        • Path C:\Users\Admin\AppData\Local\Temp\tmpCA51.tmp.dat
        • Size 40KB
        • SHA256 42aad7886965428a941508b776a666a4450eb658cb90e80fae1e7457fc71f914
        • MD5 SHA1 SHA512 SSDEEP

        BatchSelf.bat

        • Path C:\Users\Admin\AppData\Roaming\BatchSelf.bat
        • Size 203B
        • SHA256 25d837fb18794858fc5a0ddc1ae536faae69db5f70ffed38ae1227e14e56393b
        • MD5 SHA1 SHA512

        Process.txt

        • Path C:\Users\Admin\AppData\Roaming\Logs\Система\Process.txt
        • Size 4KB
        • SHA256 9252573ec64430c299ed432dc5eb0ab59afd85dd03997f9bb42fe5b3ef0be0bf
        • MD5 SHA1 SHA512 SSDEEP

        memory/2872-86-0x0000000005EE0000-0x0000000005F72000-memory.dmp

        memory/2872-3-0x00000000752B0000-0x0000000075A60000-memory.dmp

        memory/2872-82-0x00000000752B0000-0x0000000075A60000-memory.dmp

        memory/2872-0-0x00000000752BE000-0x00000000752BF000-memory.dmp

        memory/2872-87-0x0000000006530000-0x0000000006AD4000-memory.dmp

        memory/2872-2-0x0000000005220000-0x0000000005286000-memory.dmp

        memory/2872-172-0x0000000005FF0000-0x0000000006020000-memory.dmp

        memory/2872-224-0x00000000752BE000-0x00000000752BF000-memory.dmp

        memory/2872-247-0x00000000752B0000-0x0000000075A60000-memory.dmp

        memory/2872-253-0x00000000752B0000-0x0000000075A60000-memory.dmp

        memory/2872-1-0x0000000000840000-0x000000000088C000-memory.dmp

        memory/2872-256-0x00000000752B0000-0x0000000075A60000-memory.dmp