Analysis

  • max time kernel
    147s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250217-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/02/2025, 22:42

General

  • Target
    quarantine/a.exe
  • Size 13.6MB
  • Sample250223-2mse6swpht
  • SHA256 c1dd9242c70478030751af26c10b7e899156ca9c59940bf9b99f8fabe9462cfc
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Renames multiple (3873) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • Drops file in Drivers directory 2 IoCs
  • Drops startup file 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 43 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • Drops file in System32 directory 64 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 64 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\quarantine\a.exe
    "C:\Users\Admin\AppData\Local\Temp\quarantine\a.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1148
    • C:\Users\Admin\AppData\Local\Temp\onefile_1148_133848242196131136\continental.exe
      C:\Users\Admin\AppData\Local\Temp\quarantine\a.exe
      2⤵
      • Drops file in Drivers directory
      • Drops startup file
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in System32 directory
      • Drops file in Program Files directory
      • Drops file in Windows directory
      PID:3588

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        _raw_ecb.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\ONEFIL~1\Crypto\Cipher\_raw_ecb.pyd
        • Size 10KB
        • SHA256 5d1c2c60c4e571b88f27d4ae7d22494bed57d5ec91939e5716afa3ea7f6871f6
        • MD5 SHA1 SHA512 SSDEEP

        _raw_ofb.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\ONEFIL~1\Crypto\Cipher\_raw_ofb.pyd
        • Size 11KB
        • SHA256 d9fda05ae16c5387ab46dc728c6edce6a3d0a9e1abdd7acb8b32fc2a17be6f13
        • MD5 SHA1 SHA512 SSDEEP

        _SHA1.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\ONEFIL~1\Crypto\Hash\_SHA1.pyd
        • Size 17KB
        • SHA256 247b0885cf83375211861f37b6dd1376aed5131d621ee0137a60fe7910e40f8b
        • MD5 SHA1 SHA512 SSDEEP

        _scrypt.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\ONEFIL~1\Crypto\Protocol\_scrypt.pyd
        • Size 12KB
        • SHA256 eb2950b6a2185e87c5318b55132dfe5774a5a579259ab50a7935a7fb143ea7b1
        • MD5 SHA1 SHA512 SSDEEP

        _strxor.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\ONEFIL~1\Crypto\Util\_strxor.pyd
        • Size 10KB
        • SHA256 034bb8efe3068763d32c404c178bd88099192c707a36f5351f7fdb63249c7f81
        • MD5 SHA1 SHA512 SSDEEP

        _bz2.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\ONEFIL~1\_bz2.pyd
        • Size 84KB
        • SHA256 5ba872caa7fcee0f4fb81c6e0201ceed9bd92a3624f16828dd316144d292a869
        • MD5 SHA1 SHA512 SSDEEP

        _socket.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\ONEFIL~1\_socket.pyd
        • Size 82KB
        • SHA256 8daefaff53e6956f5aea5279a7c71f17d8c63e2b0d54031c3b9e82fcb0fb84db
        • MD5 SHA1 SHA512 SSDEEP

        _ssl.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\ONEFIL~1\_ssl.pyd
        • Size 178KB
        • SHA256 21ca71b2c1766fc68734cb3d1e7c2c0439b86bcfb95e00b367c5fd48c59e617c
        • MD5 SHA1 SHA512 SSDEEP

        cacert.pem

        • Path C:\Users\Admin\AppData\Local\Temp\ONEFIL~1\certifi\cacert.pem
        • Size 290KB
        • SHA256 c55b21f907f7f86d48add093552fb5651749ff5f860508ccbb423d6c1fbd80c7
        • MD5 SHA1 SHA512 SSDEEP

        md__mypyc.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\ONEFIL~1\charset_normalizer\md__mypyc.pyd
        • Size 122KB
        • SHA256 437ceb75e7bc7c72c9090558397ef3598b0bc7bc499434af5827028083d300ca
        • MD5 SHA1 SHA512 SSDEEP

        libffi-8.dll

        • Path C:\Users\Admin\AppData\Local\Temp\ONEFIL~1\libffi-8.dll
        • Size 38KB
        • SHA256 eff52743773eb550fcc6ce3efc37c85724502233b6b002a35496d828bd7b280a
        • MD5 SHA1 SHA512 SSDEEP

        _Salsa20.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\onefile_1148_133848242196131136\Crypto\Cipher\_Salsa20.pyd
        • Size 13KB
        • SHA256 1ece1dc94471d6977dbe2ceeba3764adf0625e2203d6257f7c781c619d2a3dad
        • MD5 SHA1 SHA512 SSDEEP

        _raw_cbc.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\onefile_1148_133848242196131136\Crypto\Cipher\_raw_cbc.pyd
        • Size 12KB
        • SHA256 6ba9c910f755885e4d356c798a4dd32d2803ea4cfabb3d56165b3017d0491ae2
        • MD5 SHA1 SHA512 SSDEEP

        _raw_cfb.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\onefile_1148_133848242196131136\Crypto\Cipher\_raw_cfb.pyd
        • Size 12KB
        • SHA256 18d568c7be3e04f4e6026d12b09b1fa3fae50ff29ac3deaf861f3c181653e691
        • MD5 SHA1 SHA512 SSDEEP

        _raw_ctr.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\onefile_1148_133848242196131136\Crypto\Cipher\_raw_ctr.pyd
        • Size 14KB
        • SHA256 4d86a90b2e20cde099d6122c49a72bae081f60eb2eea0f76e740be6c41da6749
        • MD5 SHA1 SHA512 SSDEEP

        _BLAKE2s.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\onefile_1148_133848242196131136\Crypto\Hash\_BLAKE2s.pyd
        • Size 13KB
        • SHA256 032b83f1003a796465255d9b246050a196488bac1260f628913e536314afded4
        • MD5 SHA1 SHA512 SSDEEP

        _SHA256.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\onefile_1148_133848242196131136\Crypto\Hash\_SHA256.pyd
        • Size 21KB
        • SHA256 16bea322d994a553b293a724b57293d57da62bc7eaf41f287956b306c13fd972
        • MD5 SHA1 SHA512 SSDEEP

        VCRUNTIME140.dll

        • Path C:\Users\Admin\AppData\Local\Temp\onefile_1148_133848242196131136\VCRUNTIME140.dll
        • Size 117KB
        • SHA256 36585912e5eaf83ba9fea0631534f690ccdc2d7ba91537166fe53e56c221e153
        • MD5 SHA1 SHA512 SSDEEP

        _ctypes.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\onefile_1148_133848242196131136\_ctypes.pyd
        • Size 131KB
        • SHA256 199cd8d7db743c316771ef7bbf414ba9a9cdae1f974e90da6103563b2023538d
        • MD5 SHA1 SHA512 SSDEEP

        _hashlib.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\onefile_1148_133848242196131136\_hashlib.pyd
        • Size 63KB
        • SHA256 14765e83996fe6d50aedc11bb41d7c427a3e846a6a6293a4a46f7ea7e3f14148
        • MD5 SHA1 SHA512 SSDEEP

        _lzma.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\onefile_1148_133848242196131136\_lzma.pyd
        • Size 155KB
        • SHA256 6f48e7eba363cb67f3465a6c91b5872454b44fc30b82710dfa4a4489270ce95c
        • MD5 SHA1 SHA512 SSDEEP

        _queue.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\onefile_1148_133848242196131136\_queue.pyd
        • Size 33KB
        • SHA256 e4956834df819c1758d17c1c42a152306f7c0ea7b457ca24ce2f6466a6cb1caa
        • MD5 SHA1 SHA512 SSDEEP

        _wmi.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\onefile_1148_133848242196131136\_wmi.pyd
        • Size 39KB
        • SHA256 ab87fe4b0cf5b2b17901905ea86367b9756c44845eb463e77435648f0f719354
        • MD5 SHA1 SHA512 SSDEEP

        md.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\onefile_1148_133848242196131136\charset_normalizer\md.pyd
        • Size 10KB
        • SHA256 1f8a5173d8bfe6c569e81c738b830800307ed4586d2ae9ac5cc13a468c6e1892
        • MD5 SHA1 SHA512 SSDEEP

        continental.exe

        • Path C:\Users\Admin\AppData\Local\Temp\onefile_1148_133848242196131136\continental.exe
        • Size 16.8MB
        • SHA256 11e8a2973e47efe62e7da025436e535fb2457283221a9b1e790ee61f9ffe1550
        • MD5 SHA1 SHA512 SSDEEP

        libcrypto-3.dll

        • Path C:\Users\Admin\AppData\Local\Temp\onefile_1148_133848242196131136\libcrypto-3.dll
        • Size 5.0MB
        • SHA256 4e5d5d20d6d31e72ab341c81e97b89e514326c4c861b48638243bdf0918cfa43
        • MD5 SHA1 SHA512 SSDEEP

        libssl-3.dll

        • Path C:\Users\Admin\AppData\Local\Temp\onefile_1148_133848242196131136\libssl-3.dll
        • Size 774KB
        • SHA256 2e4d35b681a172d3298caf7dc670451be7a8ba27c26446efc67470742497a950
        • MD5 SHA1 SHA512 SSDEEP

        python313.dll

        • Path C:\Users\Admin\AppData\Local\Temp\onefile_1148_133848242196131136\python313.dll
        • Size 5.8MB
        • SHA256 bf68cf819a1e865170430c10e91c18b427aef88db1da1742020443864aa2b749
        • MD5 SHA1 SHA512 SSDEEP

        select.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\onefile_1148_133848242196131136\select.pyd
        • Size 31KB
        • SHA256 baee284995b22d495fd12fa8378077e470978db1522c61bfb9af37fb827f33d1
        • MD5 SHA1 SHA512 SSDEEP

        unicodedata.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\onefile_1148_133848242196131136\unicodedata.pyd
        • Size 694KB
        • SHA256 a67eec238162fde20ac24ca7df931792734aad0611be22d1b3a71bc15acf72f3
        • MD5 SHA1 SHA512 SSDEEP

        vcruntime140_1.dll

        • Path C:\Users\Admin\AppData\Local\Temp\onefile_1148_133848242196131136\vcruntime140_1.dll
        • Size 48KB
        • SHA256 82a2f9ae1e6146ae3cb0f4bc5a62b7227e0384209d9b1aef86bbcc105912f7cd
        • MD5 SHA1 SHA512 SSDEEP

        backend_c.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\onefile_1148_133848242196131136\zstandard\backend_c.pyd
        • Size 508KB
        • SHA256 0b494d168a67f2eb2d75593714a4db65fe0f000b66388ab3c721a67515a2fefc
        • MD5 SHA1 SHA512 SSDEEP