Overview

overview

8

Static

static

3

771-Tool.exe

windows10-2004-x64

8

771-Tool.exe

windows11-ltsc_2024-x64

8

Analysis

  • user interaction
    yes
  • max time kernel
    150s
  • max time network
    125s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    04/11/2026, 22:28

Sharing

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General

  • Target
    771-Tool.exe
  • Size 18.9MB
  • Sample261104-2dm44af18n
  • SHA256 31d7646ff4a2373956c18727a8d6c70f1a7020686cf5b24f958499e43a585542
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
8/10
discoveryexecution

Malware Config

Signatures

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell and hide display window.

    execution
  • Loads dropped DLL 36 IoCs
  • Executes a command shell one-liner 1 TTPs 2 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

    execution
  • Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

    discovery
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\771-Tool.exe
    "C:\Users\Admin\AppData\Local\Temp\771-Tool.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:260
    • C:\Users\Admin\AppData\Local\Temp\771-Tool.exe
      C:\Users\Admin\AppData\Local\Temp\771-Tool.exe
      2⤵
      • Loads dropped DLL
      • Reads the TCP/IP host and domain name from the registry
      • Suspicious use of WriteProcessMemory
      PID:2340
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c
        3⤵
        • Executes a command shell one-liner
        PID:2384
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        powershell -WindowStyle Hidden -Command " [Windows.UI.Notifications.ToastNotificationManager, Windows.UI.Notifications, ContentType = WindowsRuntime] | Out-Null [Windows.Data.Xml.Dom.XmlDocument, Windows.Data.Xml.Dom.XmlDocument, ContentType = WindowsRuntime] | Out-Null $template = @\" <toast> <visual> <binding template=\"ToastGeneric\"> <text>welcome , to 771_Gr0up Tool</text> <text>discord.gg/771</text> </binding> </visual> </toast> \"@ $xml = New-Object Windows.Data.Xml.Dom.XmlDocument $xml.LoadXml($template) $toast = New-Object Windows.UI.Notifications.ToastNotification $xml [Windows.UI.Notifications.ToastNotificationManager]::CreateToastNotifier(\"771_Gr0up\").Show($toast) "
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4444
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c cls
        3⤵
        • Executes a command shell one-liner
        PID:2516

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        Gr0up_771-nuker.dll
        • Path C:\Users\Admin\AppData\Local\Temp\onefile_260_157262_fYr0Qk3_XQ8\Gr0up_771-nuker.dll
        • Size 38.6MB
        • SHA256 8b535109c3dd935a04094b4877f6fb1c5f2e8237b9ee99ca4c94fb7b298a4f0d
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        VCRUNTIME140.dll
        • Path C:\Users\Admin\AppData\Local\Temp\onefile_260_157262_fYr0Qk3_XQ8\VCRUNTIME140.dll
        • Size 174KB
        • SHA256 d1f4225df2cd877dbf130d5668a021dce3f94118455ff5ec952061c30afc9ce7
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        _asyncio.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\onefile_260_157262_fYr0Qk3_XQ8\_asyncio.pyd
        • Size 76KB
        • SHA256 f9594a2a4f45570dbfdf1f3471194ae7b27dc117c54b9af6bc22df9c93830f8b
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        _brotli.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\onefile_260_157262_fYr0Qk3_XQ8\_brotli.pyd
        • Size 836KB
        • SHA256 44f02bcf2b15519a487cf653e16b5f9c65f26d0be559592878988ad47148fc5e
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        _bz2.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\onefile_260_157262_fYr0Qk3_XQ8\_bz2.pyd
        • Size 86KB
        • SHA256 b938073c85cf6b9fe80556d7899ed1901e5e60b7adea2832442376239fb36b36
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        _ctypes.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\onefile_260_157262_fYr0Qk3_XQ8\_ctypes.pyd
        • Size 139KB
        • SHA256 408cc4e7a22ffa418ca52f5e13fe9268a3c50a2bc9de02b0530b555ef591bc5a
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        _hashlib.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\onefile_260_157262_fYr0Qk3_XQ8\_hashlib.pyd
        • Size 67KB
        • SHA256 5933ef5eda7c0bca0b3874a6e2c5f13b91b8f2cfc29bc46160df3212a1dbee79
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        _lzma.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\onefile_260_157262_fYr0Qk3_XQ8\_lzma.pyd
        • Size 157KB
        • SHA256 d2abf8db7fb0cf6285663b177991691a41b37e215c3d71fd087a98d8ec1bee63
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        _overlapped.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\onefile_260_157262_fYr0Qk3_XQ8\_overlapped.pyd
        • Size 56KB
        • SHA256 1d7028683e6ec50c159139238f90a6c8431ece139a4764900ca11c941ba05d46
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        _socket.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\onefile_260_157262_fYr0Qk3_XQ8\_socket.pyd
        • Size 85KB
        • SHA256 02265dd0d0287f3ffd287ea5d8e3c918a5a056e8ef2c4529857f5e84ec9e2519
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        _ssl.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\onefile_260_157262_fYr0Qk3_XQ8\_ssl.pyd
        • Size 186KB
        • SHA256 4cfb154c7cc525d57020c0e64f2dd876a78b46cd38419446392478de6b7b13b8
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        _uuid.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\onefile_260_157262_fYr0Qk3_XQ8\_uuid.pyd
        • Size 27KB
        • SHA256 fbfd7fe8583b346ba20b174b2510c0830237f5092bdf9fc26da9d6b25b018385
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        _wmi.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\onefile_260_157262_fYr0Qk3_XQ8\_wmi.pyd
        • Size 39KB
        • SHA256 b6fd41f079da0c0054829855360e88b8b762f5c42bb474c2fa02eae367839ad2
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        _zstd.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\onefile_260_157262_fYr0Qk3_XQ8\_zstd.pyd
        • Size 491KB
        • SHA256 33c6eca99470c3eb9d776b617c550ad41b002a668336f062a9ab7be677a7409a
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        _http_parser.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\onefile_260_157262_fYr0Qk3_XQ8\aiohttp\_http_parser.pyd
        • Size 258KB
        • SHA256 44e90b54298a360c85678e0a4e45713bcf72305c1dc05dcb06aa0a6200eef7dd
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        _http_writer.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\onefile_260_157262_fYr0Qk3_XQ8\aiohttp\_http_writer.pyd
        • Size 43KB
        • SHA256 471d44a62f269545f4608aef5c84a5d75fbd7a99fef2fed680fa5bccf389432d
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        mask.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\onefile_260_157262_fYr0Qk3_XQ8\aiohttp\_websocket\mask.pyd
        • Size 34KB
        • SHA256 5f5c3de90b92c76af16b3773cb95f39d27acf2631adfa1da4e7dbf66e6be9d8a
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        reader_c.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\onefile_260_157262_fYr0Qk3_XQ8\aiohttp\_websocket\reader_c.pyd
        • Size 138KB
        • SHA256 ace655e0e595d5f29f5347e85ed294402ea624cb57ed73a879db78c3b68b792f
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        _audioop.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\onefile_260_157262_fYr0Qk3_XQ8\audioop\_audioop.pyd
        • Size 48KB
        • SHA256 c9f875e7f6eb8ca8c9dddcf8f875e330f1b831b8ac042cfdb838fb2ae6cd40ef
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        _frozenlist.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\onefile_260_157262_fYr0Qk3_XQ8\frozenlist\_frozenlist.pyd
        • Size 68KB
        • SHA256 054e5d97884e8d833528aa3a98868204a3ec46cabb6a656e72432634d117880a
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        libcrypto-3.dll
        • Path C:\Users\Admin\AppData\Local\Temp\onefile_260_157262_fYr0Qk3_XQ8\libcrypto-3.dll
        • Size 6.0MB
        • SHA256 53c529145339fb042a3dcd3a09c2d7753204f8b4fc79d99e0d31e69a33985958
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        libffi-8.dll
        • Path C:\Users\Admin\AppData\Local\Temp\onefile_260_157262_fYr0Qk3_XQ8\libffi-8.dll
        • Size 38KB
        • SHA256 eff52743773eb550fcc6ce3efc37c85724502233b6b002a35496d828bd7b280a
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        libssl-3.dll
        • Path C:\Users\Admin\AppData\Local\Temp\onefile_260_157262_fYr0Qk3_XQ8\libssl-3.dll
        • Size 1.3MB
        • SHA256 b17a87979862d19241edc4318f967e24c3ec356ed6c2368f561179fab2311001
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        _multidict.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\onefile_260_157262_fYr0Qk3_XQ8\multidict\_multidict.pyd
        • Size 86KB
        • SHA256 0d3c5eb151a543acdd30d82a9cf0ea411a09dd97c369c154d4874f0aa97df76e
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        _helpers_c.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\onefile_260_157262_fYr0Qk3_XQ8\propcache\_helpers_c.pyd
        • Size 64KB
        • SHA256 cb2e3b34bafecbe41b058cf858916b092659745e3112dae913a9e390ca3b2827
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        python3.dll
        • Path C:\Users\Admin\AppData\Local\Temp\onefile_260_157262_fYr0Qk3_XQ8\python3.dll
        • Size 72KB
        • SHA256 6c45910e7c82617ca6360820de861699cc99f9efee434df290aa4c6e38f39886
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        python314.dll
        • Path C:\Users\Admin\AppData\Local\Temp\onefile_260_157262_fYr0Qk3_XQ8\python314.dll
        • Size 6.5MB
        • SHA256 0f9857ffdfe010fe6b99328d58c2e3c7472ce75f336bf9c2ad9bd5bca3bce700
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        select.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\onefile_260_157262_fYr0Qk3_XQ8\select.pyd
        • Size 32KB
        • SHA256 722328e7fad8048057fc966474ba73966d2ceebaa32e7344cce09640ab4dc9bd
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        unicodedata.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\onefile_260_157262_fYr0Qk3_XQ8\unicodedata.pyd
        • Size 741KB
        • SHA256 280b09bd97b598d18c0ed9542dc18ed35fa57a16e84f8e65fd9c6e96516c28d6
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        vcruntime140_1.dll
        • Path C:\Users\Admin\AppData\Local\Temp\onefile_260_157262_fYr0Qk3_XQ8\vcruntime140_1.dll
        • Size 48KB
        • SHA256 a7146c08f89fe5b04541ab507cdb59ff7b44534d4ba3c668a426c6450a03434e
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        _quoting_c.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\onefile_260_157262_fYr0Qk3_XQ8\yarl\_quoting_c.pyd
        • Size 80KB
        • SHA256 3912a5ed94d6928ea73abf3308dcd40fe67223a037846d10d3a773203d807beb
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        backend_c.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\onefile_260_157262_fYr0Qk3_XQ8\zstandard\backend_c.pyd
        • Size 510KB
        • SHA256 da3beaa10d453d8af37f650d04e031f2d83004c05d77d540b46407f8beda2e4f
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/4444-108-0x0000015DA7270000-0x0000015DA7292000-memory.dmp
        Download

        memory/4444-111-0x0000015DA78A0000-0x0000015DA78AA000-memory.dmp
        Download

        memory/4444-112-0x0000015DA7AD0000-0x0000015DA7AD8000-memory.dmp
        Download