Analysis

  • geolocation tags

    eueuropefrfrance
  • max time kernel
    58s
  • max time network
    25s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    07/11/2026, 14:36

General

  • Target
    4lette.exe
  • Size 34.5MB
  • Sample261107-rywa4afb75
  • SHA256 12349c03e0bedc576ffeb8f41785852ad30ae930187af3026cd6374233d09d67
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Loads dropped DLL 30 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • Contacts third-party web service commonly abused for C2 1 TTPs 2 IoCs

    Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

  • Looks up external IP address via web service 1 TTPs 2 IoCs

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

  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Executes a command shell one-liner 1 TTPs 6 IoCs

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

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 6 IoCs

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

  • Detects videocard installed 1 TTPs 1 IoCs

    Uses WMIC.exe to determine videocard installed.

  • Kills process with taskkill 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4lette.exe
    "C:\Users\Admin\AppData\Local\Temp\4lette.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4084
    • C:\Users\Admin\AppData\Local\Temp\4lette.exe
      "C:\Users\Admin\AppData\Local\Temp\4lette.exe"
      2⤵
      • Loads dropped DLL
      • Reads the TCP/IP host and domain name from the registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4524
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c taskkill /F /IM chrome.exe /T >nul 2>&1
        3⤵
        • Executes a command shell one-liner
        • Suspicious use of WriteProcessMemory
        PID:1532
        • C:\Windows\system32\taskkill.exe
          taskkill /F /IM chrome.exe /T
          4⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:4972
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c taskkill /F /IM msedge.exe /T >nul 2>&1
        3⤵
        • Executes a command shell one-liner
        • Suspicious use of WriteProcessMemory
        PID:5564
        • C:\Windows\system32\taskkill.exe
          taskkill /F /IM msedge.exe /T
          4⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:1812
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c taskkill /F /IM brave.exe /T >nul 2>&1
        3⤵
        • Executes a command shell one-liner
        • Suspicious use of WriteProcessMemory
        PID:4616
        • C:\Windows\system32\taskkill.exe
          taskkill /F /IM brave.exe /T
          4⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:5260
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c taskkill /F /IM opera.exe /T >nul 2>&1
        3⤵
        • Executes a command shell one-liner
        • Suspicious use of WriteProcessMemory
        PID:1112
        • C:\Windows\system32\taskkill.exe
          taskkill /F /IM opera.exe /T
          4⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:4144
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c "wmic path win32_VideoController get name"
        3⤵
        • Executes a command shell one-liner
        • Suspicious use of WriteProcessMemory
        PID:3176
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic path win32_VideoController get name
          4⤵
          • Reads the TCP/IP host and domain name from the registry
          • Detects videocard installed
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2168
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c "wmic computersystem get totalphysicalmemory"
        3⤵
        • Executes a command shell one-liner
        • Suspicious use of WriteProcessMemory
        PID:1496
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic computersystem get totalphysicalmemory
          4⤵
          • Reads the TCP/IP host and domain name from the registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4604

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        _raw_aes.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000ff42\Crypto\Cipher\_raw_aes.pyd
        • Size 34KB
        • SHA256 520b343e44b5633bbc4fdcecc705a7f2eb6e55d082a1f3e4723ada9d7e5ea97d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _raw_aesni.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000ff42\Crypto\Cipher\_raw_aesni.pyd
        • Size 15KB
        • SHA256 3818873f50418cbecde58150e9bffff7372d2c2067fc0b96ffac9482dfddd603
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _cpuid_c.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000ff42\Crypto\Util\_cpuid_c.pyd
        • Size 10KB
        • SHA256 2af984819d9b1f95132520901b355eb85aa24d5efc6fc5ae9e77252ed03b7f4b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _imaging.cp314-win_amd64.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000ff42\PIL\_imaging.cp314-win_amd64.pyd
        • Size 2.5MB
        • SHA256 d823c0e3b54035d08703bb427c553c956c2607b79395f2952e17a5447c5f1105
        • MD5 SHA1 SHA512 SSDEEP TLSH

        VCRUNTIME140.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000ff42\VCRUNTIME140.dll
        • Size 174KB
        • SHA256 d1f4225df2cd877dbf130d5668a021dce3f94118455ff5ec952061c30afc9ce7
        • MD5 SHA1 SHA512 SSDEEP TLSH

        VCRUNTIME140_1.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000ff42\VCRUNTIME140_1.dll
        • Size 48KB
        • SHA256 a7146c08f89fe5b04541ab507cdb59ff7b44534d4ba3c668a426c6450a03434e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _bz2.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000ff42\_bz2.pyd
        • Size 86KB
        • SHA256 b938073c85cf6b9fe80556d7899ed1901e5e60b7adea2832442376239fb36b36
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _ctypes.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000ff42\_ctypes.pyd
        • Size 139KB
        • SHA256 408cc4e7a22ffa418ca52f5e13fe9268a3c50a2bc9de02b0530b555ef591bc5a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _hashlib.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000ff42\_hashlib.pyd
        • Size 67KB
        • SHA256 5933ef5eda7c0bca0b3874a6e2c5f13b91b8f2cfc29bc46160df3212a1dbee79
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _lzma.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000ff42\_lzma.pyd
        • Size 157KB
        • SHA256 d2abf8db7fb0cf6285663b177991691a41b37e215c3d71fd087a98d8ec1bee63
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _queue.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000ff42\_queue.pyd
        • Size 35KB
        • SHA256 2fd8668f52b34d0e71ae48784bd2e7d35e5d99df6f641edb0fc279235a187c8e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _socket.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000ff42\_socket.pyd
        • Size 85KB
        • SHA256 02265dd0d0287f3ffd287ea5d8e3c918a5a056e8ef2c4529857f5e84ec9e2519
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _sqlite3.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000ff42\_sqlite3.pyd
        • Size 129KB
        • SHA256 ec9694e5929747e93e05bc32427d24350dc4de5074b61a37bc961c3048794a67
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _ssl.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000ff42\_ssl.pyd
        • Size 186KB
        • SHA256 4cfb154c7cc525d57020c0e64f2dd876a78b46cd38419446392478de6b7b13b8
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _uuid.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000ff42\_uuid.pyd
        • Size 27KB
        • SHA256 fbfd7fe8583b346ba20b174b2510c0830237f5092bdf9fc26da9d6b25b018385
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _wmi.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000ff42\_wmi.pyd
        • Size 39KB
        • SHA256 b6fd41f079da0c0054829855360e88b8b762f5c42bb474c2fa02eae367839ad2
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _zstd.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000ff42\_zstd.pyd
        • Size 491KB
        • SHA256 33c6eca99470c3eb9d776b617c550ad41b002a668336f062a9ab7be677a7409a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        base_library.zip

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000ff42\base_library.zip
        • Size 1.3MB
        • SHA256 19d592c109dcb8ab501e87b41e573f6dc65d8703ca4cbf72d5224ac296879803
        • MD5 SHA1 SHA512 SSDEEP TLSH

        cacert.pem

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000ff42\certifi\cacert.pem
        • Size 234KB
        • SHA256 9cc2a774b5198dcff14d9be1e66091f538975d867ce029a96bce15a55dfd730f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        cd.cp314-win_amd64.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000ff42\charset_normalizer\cd.cp314-win_amd64.pyd
        • Size 116KB
        • SHA256 f234a1dbd19363a3260d6a1e2d82ec1c6e30b2e23d6057796021231d668d978a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        md.cp314-win_amd64.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000ff42\charset_normalizer\md.cp314-win_amd64.pyd
        • Size 193KB
        • SHA256 faf5cb006492b3526abcbfdac9a0d39cd52d32425292db9d2a210d8b44d9d925
        • MD5 SHA1 SHA512 SSDEEP TLSH

        libcrypto-3.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000ff42\libcrypto-3.dll
        • Size 6.0MB
        • SHA256 53c529145339fb042a3dcd3a09c2d7753204f8b4fc79d99e0d31e69a33985958
        • MD5 SHA1 SHA512 SSDEEP TLSH

        libffi-8.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000ff42\libffi-8.dll
        • Size 38KB
        • SHA256 eff52743773eb550fcc6ce3efc37c85724502233b6b002a35496d828bd7b280a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        libssl-3.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000ff42\libssl-3.dll
        • Size 1.3MB
        • SHA256 b17a87979862d19241edc4318f967e24c3ec356ed6c2368f561179fab2311001
        • MD5 SHA1 SHA512 SSDEEP TLSH

        python3.DLL

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000ff42\python3.DLL
        • Size 72KB
        • SHA256 6c45910e7c82617ca6360820de861699cc99f9efee434df290aa4c6e38f39886
        • MD5 SHA1 SHA512 SSDEEP TLSH

        python314.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000ff42\python314.dll
        • Size 6.5MB
        • SHA256 0f9857ffdfe010fe6b99328d58c2e3c7472ce75f336bf9c2ad9bd5bca3bce700
        • MD5 SHA1 SHA512 SSDEEP TLSH

        pywintypes314.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000ff42\pywin32_system32\pywintypes314.dll
        • Size 133KB
        • SHA256 e62808f40462f8066c8d19811cebd15467de6992b1cb48be5f5903910f5395f7
        • MD5 SHA1 SHA512 SSDEEP TLSH

        select.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000ff42\select.pyd
        • Size 32KB
        • SHA256 722328e7fad8048057fc966474ba73966d2ceebaa32e7344cce09640ab4dc9bd
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Lorem ipsum.txt

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000ff42\setuptools\_vendor\jaraco\text\Lorem ipsum.txt
        • Size 1KB
        • SHA256 37fedcffbf73c4eb9f058f47677cb33203a436ff9390e4d38a8e01c9dad28e0b
        • MD5 SHA1 SHA512 TLSH

        sqlite3.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000ff42\sqlite3.dll
        • Size 1.5MB
        • SHA256 9a8fb79d6b7e581d127314028dcecf754b8d7fe4aca1247f82c1f33ee8fccc7e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        unicodedata.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000ff42\unicodedata.pyd
        • Size 741KB
        • SHA256 280b09bd97b598d18c0ed9542dc18ed35fa57a16e84f8e65fd9c6e96516c28d6
        • MD5 SHA1 SHA512 SSDEEP TLSH

        win32crypt.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI00000ff42\win32\win32crypt.pyd
        • Size 123KB
        • SHA256 1144670ad8271e4d477167bcb55b8ec38e8ad9f02c6fbfe66024e67083da2131
        • MD5 SHA1 SHA512 SSDEEP TLSH