Analysis

  • max time kernel
    146s
  • max time network
    119s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-10-2024 16:07

General

  • Target

    ad50fbeb07b058ac473e89fb7b0c972ce6579e3927d3142cc43418f82ef5410f.exe

  • Size

    263KB

  • MD5

    5c8af2740a5828f8280b7e5cd4a2d851

  • SHA1

    77c382783298daa74ce37c09ef56bdd3d67bb795

  • SHA256

    ad50fbeb07b058ac473e89fb7b0c972ce6579e3927d3142cc43418f82ef5410f

  • SHA512

    d6e79b3ba49dadadbfd32f281e4e61a35ba283f805b3457f5d54026cf6fe91bad11d5b0e1ef3d27fa5921bb92920072bf0aa7fbd7042fdf2ea6e3ee9f1dc6202

  • SSDEEP

    6144:ZDKW1Lgbdl0TBBvjc/1yeZNJfyUg5aXoFtKGzchQrvILv+:Jh1Lk70TnvjcNy2yUg5aXGwGYQrva+

Malware Config

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
  • .NET Reactor proctector 31 IoCs

    Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

  • 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
  • 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 9 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 2 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ad50fbeb07b058ac473e89fb7b0c972ce6579e3927d3142cc43418f82ef5410f.exe
    "C:\Users\Admin\AppData\Local\Temp\ad50fbeb07b058ac473e89fb7b0c972ce6579e3927d3142cc43418f82ef5410f.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4212
    • C:\Users\Admin\AppData\Local\Temp\Build_Crystal_Stealer.exe
      "C:\Users\Admin\AppData\Local\Temp\Build_Crystal_Stealer.exe"
      2⤵
      • 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:4188
      • C:\Windows\SysWOW64\cmd.exe
        "cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Wi-Fi Discovery
        • Suspicious use of WriteProcessMemory
        PID:2544
        • C:\Windows\SysWOW64\chcp.com
          chcp 65001
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2860
        • C:\Windows\SysWOW64\netsh.exe
          netsh wlan show profile
          4⤵
          • Event Triggered Execution: Netsh Helper DLL
          • System Location Discovery: System Language Discovery
          • System Network Configuration Discovery: Wi-Fi Discovery
          PID:3544
        • C:\Windows\SysWOW64\findstr.exe
          findstr All
          4⤵
          • System Location Discovery: System Language Discovery
          PID:4772
      • C:\Windows\SysWOW64\cmd.exe
        "cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4600
        • C:\Windows\SysWOW64\chcp.com
          chcp 65001
          4⤵
          • System Location Discovery: System Language Discovery
          PID:4488
        • C:\Windows\SysWOW64\netsh.exe
          netsh wlan show networks mode=bssid
          4⤵
          • Event Triggered Execution: Netsh Helper DLL
          • System Location Discovery: System Language Discovery
          PID:5024

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\23d148d13423f560b6d2b15132e25da1\Admin@OARDHGDN_en-US\Browsers\Firefox\Bookmarks.txt

    Filesize

    105B

    MD5

    2e9d094dda5cdc3ce6519f75943a4ff4

    SHA1

    5d989b4ac8b699781681fe75ed9ef98191a5096c

    SHA256

    c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142

    SHA512

    d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7

  • C:\Users\Admin\AppData\Local\23d148d13423f560b6d2b15132e25da1\Admin@OARDHGDN_en-US\System\Process.txt

    Filesize

    4KB

    MD5

    6dcb33de2d7f0beabbdefb766db82c2e

    SHA1

    70a922ce6b6048344b810d728115427b68fd56f0

    SHA256

    206a8b45a6d173c6f8e68992883401c8f1ea91db59c9d2d3848c8f6b37ad73fd

    SHA512

    d277dda5ffac27d8a7fc5a87d27f2c456e269c2a1161e295483b64a4d461eca8d1cc486de1156ffba8901b74fcd4ce96306967d6e244ee1dbc8680ee18ed611e

  • C:\Users\Admin\AppData\Local\9c8d176f867a45fc59791e6c5252d9ab\msgid.dat

    Filesize

    1B

    MD5

    cfcd208495d565ef66e7dff9f98764da

    SHA1

    b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

    SHA256

    5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

    SHA512

    31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

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

    Filesize

    161KB

    MD5

    261b57ba1798221de96c4daab7baad40

    SHA1

    7d702c786c31863447dfdb962284c04aef37412d

    SHA256

    74cad89b3ed3e5a2f3c2e150f08c3ccebf8f4a9fc467b8fb090ffc2269e2779a

    SHA512

    747d7418d3195e7f32641917eb7431504fcc34ad49ed0b04c27cbb3493aef97d22aadfbf8767c222edcb092ca4e72a09b9b1637db895ceab03b0f760e21d42e3

  • memory/4188-231-0x0000000005CD0000-0x0000000005CDA000-memory.dmp

    Filesize

    40KB

  • memory/4188-227-0x0000000005BC0000-0x0000000005C52000-memory.dmp

    Filesize

    584KB

  • memory/4188-226-0x0000000074E40000-0x00000000755F0000-memory.dmp

    Filesize

    7.7MB

  • memory/4188-225-0x0000000074E40000-0x00000000755F0000-memory.dmp

    Filesize

    7.7MB

  • memory/4188-219-0x0000000074E40000-0x00000000755F0000-memory.dmp

    Filesize

    7.7MB

  • memory/4188-237-0x00000000061E0000-0x00000000061F2000-memory.dmp

    Filesize

    72KB

  • memory/4188-262-0x0000000074E40000-0x00000000755F0000-memory.dmp

    Filesize

    7.7MB

  • memory/4188-81-0x0000000005170000-0x00000000051D6000-memory.dmp

    Filesize

    408KB

  • memory/4188-80-0x0000000074E40000-0x00000000755F0000-memory.dmp

    Filesize

    7.7MB

  • memory/4188-79-0x0000000074E40000-0x00000000755F0000-memory.dmp

    Filesize

    7.7MB

  • memory/4188-77-0x00000000007F0000-0x000000000081E000-memory.dmp

    Filesize

    184KB

  • memory/4212-47-0x0000000004AF0000-0x0000000004B1B000-memory.dmp

    Filesize

    172KB

  • memory/4212-6-0x0000000004AF0000-0x0000000004B1B000-memory.dmp

    Filesize

    172KB

  • memory/4212-33-0x0000000004AF0000-0x0000000004B1B000-memory.dmp

    Filesize

    172KB

  • memory/4212-29-0x0000000004AF0000-0x0000000004B1B000-memory.dmp

    Filesize

    172KB

  • memory/4212-23-0x0000000004AF0000-0x0000000004B1B000-memory.dmp

    Filesize

    172KB

  • memory/4212-21-0x0000000004AF0000-0x0000000004B1B000-memory.dmp

    Filesize

    172KB

  • memory/4212-19-0x0000000004AF0000-0x0000000004B1B000-memory.dmp

    Filesize

    172KB

  • memory/4212-17-0x0000000004AF0000-0x0000000004B1B000-memory.dmp

    Filesize

    172KB

  • memory/4212-15-0x0000000004AF0000-0x0000000004B1B000-memory.dmp

    Filesize

    172KB

  • memory/4212-11-0x0000000004AF0000-0x0000000004B1B000-memory.dmp

    Filesize

    172KB

  • memory/4212-9-0x0000000004AF0000-0x0000000004B1B000-memory.dmp

    Filesize

    172KB

  • memory/4212-7-0x0000000004AF0000-0x0000000004B1B000-memory.dmp

    Filesize

    172KB

  • memory/4212-43-0x0000000004AF0000-0x0000000004B1B000-memory.dmp

    Filesize

    172KB

  • memory/4212-37-0x0000000004AF0000-0x0000000004B1B000-memory.dmp

    Filesize

    172KB

  • memory/4212-35-0x0000000004AF0000-0x0000000004B1B000-memory.dmp

    Filesize

    172KB

  • memory/4212-31-0x0000000004AF0000-0x0000000004B1B000-memory.dmp

    Filesize

    172KB

  • memory/4212-27-0x0000000004AF0000-0x0000000004B1B000-memory.dmp

    Filesize

    172KB

  • memory/4212-25-0x0000000004AF0000-0x0000000004B1B000-memory.dmp

    Filesize

    172KB

  • memory/4212-13-0x0000000004AF0000-0x0000000004B1B000-memory.dmp

    Filesize

    172KB

  • memory/4212-39-0x0000000004AF0000-0x0000000004B1B000-memory.dmp

    Filesize

    172KB

  • memory/4212-61-0x0000000004AF0000-0x0000000004B1B000-memory.dmp

    Filesize

    172KB

  • memory/4212-63-0x0000000005150000-0x00000000051EC000-memory.dmp

    Filesize

    624KB

  • memory/4212-64-0x0000000074E40000-0x00000000755F0000-memory.dmp

    Filesize

    7.7MB

  • memory/4212-41-0x0000000004AF0000-0x0000000004B1B000-memory.dmp

    Filesize

    172KB

  • memory/4212-45-0x0000000004AF0000-0x0000000004B1B000-memory.dmp

    Filesize

    172KB

  • memory/4212-0-0x0000000074E4E000-0x0000000074E4F000-memory.dmp

    Filesize

    4KB

  • memory/4212-78-0x0000000074E40000-0x00000000755F0000-memory.dmp

    Filesize

    7.7MB

  • memory/4212-51-0x0000000004AF0000-0x0000000004B1B000-memory.dmp

    Filesize

    172KB

  • memory/4212-53-0x0000000004AF0000-0x0000000004B1B000-memory.dmp

    Filesize

    172KB

  • memory/4212-55-0x0000000004AF0000-0x0000000004B1B000-memory.dmp

    Filesize

    172KB

  • memory/4212-62-0x0000000074E40000-0x00000000755F0000-memory.dmp

    Filesize

    7.7MB

  • memory/4212-57-0x0000000004AF0000-0x0000000004B1B000-memory.dmp

    Filesize

    172KB

  • memory/4212-59-0x0000000004AF0000-0x0000000004B1B000-memory.dmp

    Filesize

    172KB

  • memory/4212-49-0x0000000004AF0000-0x0000000004B1B000-memory.dmp

    Filesize

    172KB

  • memory/4212-4-0x0000000004AF0000-0x0000000004B20000-memory.dmp

    Filesize

    192KB

  • memory/4212-5-0x0000000074E40000-0x00000000755F0000-memory.dmp

    Filesize

    7.7MB

  • memory/4212-3-0x0000000004BA0000-0x0000000005144000-memory.dmp

    Filesize

    5.6MB

  • memory/4212-2-0x0000000074E40000-0x00000000755F0000-memory.dmp

    Filesize

    7.7MB

  • memory/4212-1-0x0000000002440000-0x0000000002472000-memory.dmp

    Filesize

    200KB