Analysis

  • max time kernel
    134s
  • max time network
    128s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    18-05-2024 08:45

General

  • Target

    1408_cn_V8.3.0.0/1408_cn_8.3.0.0/DVR/default.htm

  • Size

    687B

  • MD5

    20b2ec88b2dc1a322630f41819597573

  • SHA1

    4516e2efdb502c59f50fcf931880c4501cff7341

  • SHA256

    eb38f066a2d6cfb8b816f48a40d11f2c7f7be6fcba26612bfcb537293a791544

  • SHA512

    86fc3cdae92a6e44bcabb1cf8af43b2a6b018adef8ba1eb311fac8d8b32e6d2e4fec266aa1819bb19f7f3e8ececb5f93f4e1aa9eb2dd2dca28c429972c437f67

Score
7/10

Malware Config

Signatures

  • Loads dropped DLL 9 IoCs
  • Program crash 1 IoCs
  • Drops file in Windows directory 5 IoCs
  • Modifies Internet Explorer settings 1 TTPs 26 IoCs
  • Modifies registry class 56 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe" C:\Users\Admin\AppData\Local\Temp\1408_cn_V8.3.0.0\1408_cn_8.3.0.0\DVR\default.htm
    1⤵
    • Modifies Internet Explorer settings
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1364
    • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1364 CREDAT:275457 /prefetch:2
      2⤵
      • Loads dropped DLL
      • Drops file in Windows directory
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2156
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2156 -s 1524
        3⤵
        • Loads dropped DLL
        • Program crash
        PID:2692

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\3C428B1A3E5F57D887EC4B864FAC5DCC
    Filesize

    914B

    MD5

    e4a68ac854ac5242460afd72481b2a44

    SHA1

    df3c24f9bfd666761b268073fe06d1cc8d4f82a4

    SHA256

    cb3ccbb76031e5e0138f8dd39a23f9de47ffc35e43c1144cea27d46a5ab1cb5f

    SHA512

    5622207e1ba285f172756f6019af92ac808ed63286e24dfecc1e79873fb5d140f1ceb7133f2476e89a5f75f711f9813a9fbb8fd5287f64adfdcc53b864f9bdc5

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
    Filesize

    68KB

    MD5

    29f65ba8e88c063813cc50a4ea544e93

    SHA1

    05a7040d5c127e68c25d81cc51271ffb8bef3568

    SHA256

    1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

    SHA512

    e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\F0ACCF77CDCBFF39F6191887F6D2D357
    Filesize

    1KB

    MD5

    a266bb7dcc38a562631361bbf61dd11b

    SHA1

    3b1efd3a66ea28b16697394703a72ca340a05bd5

    SHA256

    df545bf919a2439c36983b54cdfc903dfa4f37d3996d8d84b4c31eec6f3c163e

    SHA512

    0da8ef4f8f6ed3d16d2bc8eb816b9e6e1345dfe2d91160196c47e6149a1d6aedaafadcefd66acdea7f72dcf0832770192ceac15b0c559c4ccc2c0e5581d5aefc

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\3C428B1A3E5F57D887EC4B864FAC5DCC
    Filesize

    252B

    MD5

    e1372ed6ac4e007e76704bacf4df0050

    SHA1

    dfdcf9ab12df60c662fd3bfe28f4251eddb0a453

    SHA256

    9c313107854e5aa0d623329ef260bb213e9772d5c93306be255c612a8af17422

    SHA512

    0ae767684cf87c5284e1e90410916e65d623d8536132ec88742854ae1803d13c6f3b7c3b83215d7cbe3bc5227a0a86bb858e088128d7ed74a1b8510f8a801e7f

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
    Filesize

    344B

    MD5

    031c358a96c86b7299afc336c482c6af

    SHA1

    3cc43621e6890457f7b4da6618c8d6d4c58e10c3

    SHA256

    812f7728b1b0ba41e036579a1ebeb842c1ce0574437c8673867ec2aa4579091c

    SHA512

    a7948ed374186c6cbc9a2c23bb5967c0123ee356712167510fafd6b1e010957f51027834f090d9b5dae537ffa994e06fea07ad8c2b6d53fc530187f827817cab

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
    Filesize

    344B

    MD5

    6af93ed92438b7d31bd64dcbda3a34d1

    SHA1

    23cc394f7dfde21d77b838c0042bd09c0533676e

    SHA256

    b25387a8d806dbe485b5bca2c9dea9e42720e0b57e749bee0d44d6835d11e07a

    SHA512

    b8b4c5eb01801e09f48a4d616fffa7bb0c3c2f5234995cedd8f8b5aef1a0a0862c59e4da5812172ae8a60986b7a66453b0991dc2d3e7590f73e468079839d90f

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
    Filesize

    344B

    MD5

    f789cb40e1673f7b3227cd22d7fecb86

    SHA1

    26f04754ebdc986ae1cc64d591478eb5c86aaa3b

    SHA256

    a47f3cd5470b5978fc68b76c38fc1d7070e0161c0b817f67d36ec163f3f6a3a3

    SHA512

    215a1e259db03442156729bef7abe823aedc806f31930b11e3c1b6cd87b00e876599a3464e43cfd8ec98b717c5a73385645aa596b3fabd7bf9b8c826a1b975a0

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
    Filesize

    344B

    MD5

    da1b9503299d07c8b0512c3709aa9fb2

    SHA1

    52d0bb9e298722f68b27cdad1669c1c76d36c15f

    SHA256

    546350fbb9324ff4bf328b40eafc0a21919a17639ea2138fd450c77bb211f71a

    SHA512

    aa6255507682410f836109ec7e84867f1c976796e3d7dac54771e98e54d6d35cbe429899f53de4be88deb8643e80443994abdd2c095d8a473e4fb5206c402ba8

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
    Filesize

    344B

    MD5

    8eb5508c56cb01bc332fb7cf5bd94967

    SHA1

    6d943e1c719c1d5418f82f2f97f427b32973bc52

    SHA256

    9c94211951462300dee5f0534399c431bc5492322a9c36efaade642fc2bca6cf

    SHA512

    dabcd0d09e28ced91d08e3ae049b1525fe95a52f47ed45f9a704bc75f22c4dfd7732588ccf67baca735773a7f2265d66b23adcd7c3f99bc34ddb91d212870cd9

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
    Filesize

    344B

    MD5

    adea5aafddfe3bc39726f12e8c4f3f5e

    SHA1

    d48c783a857ffdc0e6216c170aae679d7a47966f

    SHA256

    c4f09336dc355b0b04cb49a8560303e8034661a92d432c419a03228293a95b64

    SHA512

    f2ab0d975145cbc9bb86cc4feee8cdb46e5d0258ffd692d710527efdf8d3a016dafb65687ddbf7c98840b076ffacd19a369177d5f765b80364828f0c7a6aab89

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
    Filesize

    344B

    MD5

    5560c48a00e09a33bd96918d3dd474d9

    SHA1

    76e6679cf74c32d7c782ec2e5cfe5abeec190f83

    SHA256

    822189a33aa5704156fb3115278efdda5b524bd1466577af879004d10e19fa8d

    SHA512

    d20419890542318a628a38deae8e525cb00a785a858c373eb2371984595c41d85a826c696356a13e66eca6522c346775276b44739b3414612d8cb86981794e02

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
    Filesize

    344B

    MD5

    49626b49194d0a043d60247a493d75f0

    SHA1

    a6362f33a3eb643bbcb53136b78b7596fe528df8

    SHA256

    385e86c3a5798abe0a46513221f3fc60ad361773e935901fe4d2f60c0f391060

    SHA512

    1691b7578a409aaecf9e4bb9ec221c3c5c894bd7fee1a20fcea01ad4702ecb5c545058c2731a2855060c43095e36856888b5bd26c1183fea3bdaa95fd3074541

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
    Filesize

    344B

    MD5

    6e8c7fef8698efa316195b2f15de6253

    SHA1

    b4c7d50a2f2fce0c52ca47b93b9f3f70fbba3f07

    SHA256

    849405e91514a8c8dfc71c48d209ed5d6f9c30e93cbe27e4911c2d5446513375

    SHA512

    4760984dbd9ee7d0d7d120c701f5c56d968d68a778818e460c104227d12ca5b08aad583a63259cdb3f9aed5cc1b0764f9ae2366a33c4fddd1cd9662822800a27

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\F0ACCF77CDCBFF39F6191887F6D2D357
    Filesize

    242B

    MD5

    f69ffeed116ce3743bce3c85cd21faf1

    SHA1

    e14e11bfff493eb89cbeab0273ffab385fab248c

    SHA256

    bdba89574caa27ae23b289ecb2261588fff0af84ce484e0f2bbb1bba4e539b10

    SHA512

    9c53ee9cf10e45702ba7371cb14d9ada80f8ad13b91a27043aab10e435cd813ee8bbf1f668829d16008451bec9567100cf560d27a38a49abcb2afc0ddbae5213

  • C:\Users\Admin\AppData\Local\Temp\Tar19DC.tmp
    Filesize

    177KB

    MD5

    435a9ac180383f9fa094131b173a2f7b

    SHA1

    76944ea657a9db94f9a4bef38f88c46ed4166983

    SHA256

    67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

    SHA512

    1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

  • \Windows\Downloaded Program Files\webview.dll
    Filesize

    736KB

    MD5

    6d50265fe4d14e0ddae1b73aed37e864

    SHA1

    2505ef562b6861bc1189967c88e0453797a88df8

    SHA256

    68da49bcd3c1105405297b5420ae86529aec7067d6cd8427d30be577cb6b9ced

    SHA512

    61a6e63c20b10a8b9877f3d3590e06cf0f3f1d25ddd708fc5c4f135c899f212216612ef80b95c8d600d224ab080f50032a34db1281e34d2221f580db9d4949c9