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Analysis

  • max time kernel
    120s
  • max time network
    140s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    05/01/2024, 11:25

General

  • Target

    4a0c3570a27479f73c1187abb9c550e7ef8d85d1eb657c9066674e1f19994e3b.exe

  • Size

    1.2MB

  • MD5

    197916eb2f2f628e133ffb10e5042313

  • SHA1

    e6f4c137822480bcbbde31a4357669ea66449ec9

  • SHA256

    4a0c3570a27479f73c1187abb9c550e7ef8d85d1eb657c9066674e1f19994e3b

  • SHA512

    678e8f896f99be91a7c4fb709214b03c4565617011183d183add5d01a390b2a58c1290d1866b4e57b1bbe6ae027c12b86cf5c3113f063887aa28e760655c8a6d

  • SSDEEP

    24576:wak/7Nk4RZzg84YKZu0zoFmDcpii9iGn+lcnMTFHtOUsCz8oDqE:wak/+84dZu+k0WdEGnAHtlsCIo+E

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Modifies Internet Explorer settings 1 TTPs 36 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4a0c3570a27479f73c1187abb9c550e7ef8d85d1eb657c9066674e1f19994e3b.exe
    "C:\Users\Admin\AppData\Local\Temp\4a0c3570a27479f73c1187abb9c550e7ef8d85d1eb657c9066674e1f19994e3b.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2856
    • C:\Users\Admin\AppData\Local\Temp\4a0c3570a27479f73c1187abb9c550e7ef8d85d1eb657c9066674e1f19994e3b.exe
      "C:\Users\Admin\AppData\Local\Temp\4a0c3570a27479f73c1187abb9c550e7ef8d85d1eb657c9066674e1f19994e3b.exe" Master
      2⤵
      • Drops file in Drivers directory
      • Enumerates connected drives
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1804
      • C:\Program Files\Internet Explorer\iexplore.exe
        "C:\Program Files\Internet Explorer\iexplore.exe" http://www.178stu.com/my.htm
        3⤵
        • Modifies Internet Explorer settings
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2648
  • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
    "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2648 CREDAT:275457 /prefetch:2
    1⤵
    • Modifies Internet Explorer settings
    • Suspicious use of SetWindowsHookEx
    PID:2676

Network

MITRE ATT&CK Enterprise v15

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

    16KB

    MD5

    ca60c4644f54c7b57ab286e2e1889ce8

    SHA1

    ce2a15d332d1cdae0d935e7f6dad8d892ea4d1a4

    SHA256

    4dd41906c974aece7def877e83ff955a95171b9d79c20e74e3758e82e8c8365a

    SHA512

    4fcde4da60684f2f82c59cba6615b7b484b887829bf0b39b23700e9a7208c10b876ed4b257e513cbb7144d7be90063432a834f3bb1d41d8aa5bc3437dedf574a

  • 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

    18f9ae0b6554e66c3201759ecf8e49d3

    SHA1

    2162d5d09dace7ca690b0e73d3bc6275a2cca368

    SHA256

    f648fd2b05f28aaf32afb86f5894883f76be89df22cf087ab8fa77cbaae7ed11

    SHA512

    9772139bb010139c45d4b2a4e2a49e5b93551670220282d0d8d00172766d6821ac79ec1fddbc5bd08e2a059daa37a5b3b73c2139a5e60a11a6b3590932cbbd7d

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

    Filesize

    344B

    MD5

    d74d1203f83709187dc0ac0f2c148fdd

    SHA1

    730be6c38185520ee3fa4ac15b9b604ad97c78da

    SHA256

    ec872fe6839732ded8f87ad08222f9343b7c60ad889b8036dc2e81fba1b68ec7

    SHA512

    475dde380bae70b35bb8ab6bb1773872ff9adb61f31e1c5103f660952adbf4b2e095dd47ec4c998d023aa61f99384a49f9036d38b9844481cb2644ca690630f2

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

    Filesize

    344B

    MD5

    70bee13c13fd2fa97495efe88e890ccf

    SHA1

    9c7e31bb93cc4abde7d73fd34b5b2354cf632786

    SHA256

    012cd7db84716bf172fd300d159f5aad8f9774d354d9cd629d6e5442111fa20a

    SHA512

    909e8aafa4b0f5bc23d3229fd173bac61f3dfa39fa92f7f37cffc3f2041edd5181459d7af21e201725626fb53b7333b12c137bcec4de060a181471ba53fea593

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

    Filesize

    344B

    MD5

    ab259a1727f5b58366de7c7583865e7e

    SHA1

    d1ff247661727e075dcbcf275bb84c0f3091e78d

    SHA256

    b57dd9512ae64a9200dbaa63cb82400d6d27fb9b98e3debb65e2fb92839a8fb8

    SHA512

    c9c6d7872092fbdae449581909ff0961c571ca7aa841adf2f24e9d7e8d0da605f53f8172cf1fe76af3845ffc82d4f3255dc5f551553cd17746a6997dfb6966d3

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

    Filesize

    344B

    MD5

    d1192ad68ad79b5dfe26e25d660eaa4a

    SHA1

    27fbcb5d96951e69b8b3bc255a7e1ac007cd7040

    SHA256

    8af2d803882aaa4f74aed7a3179d6ebfd8232a73030b5dc3ed7c7a3301e9c628

    SHA512

    79e87d742c44a1f78d60eff6cd5bf83d9a3eeafc714bcbf3944d2a115525699c279be1b3728b202439cfd63291ba26513aa1be1039771abb2ba25efad91e981b

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

    Filesize

    344B

    MD5

    6a0a383d64a29ccecbee7248a2cb0a22

    SHA1

    97989c411d106dfc7b4b9f06900e8603b4b8099e

    SHA256

    a7618f8a44f8d1cbe87bce9892f7a3c701097cce42243acd0b9104fa59da6582

    SHA512

    b1aa2d308692fdda094fd9f2594c20afc225540a28908eb0ef0e7b3a50730fcb82e02abe523fd9fb02512c38690065555d277669a0f2dc19778864fbe1a2f0b8

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

    Filesize

    242B

    MD5

    95f324696282479940dec6fd32e28f66

    SHA1

    83ea79c788072ee6ea563b586499aaf175f8e421

    SHA256

    285d453498c2017ed52ecde551e05c746a0e25ea79bbb2a2f09e18232e23c5ea

    SHA512

    3b514e49cfbe13dc3aae7ce15105e3e57a2412bacca2db069e4dbfcc0c52688f0cd06152d1d299d6a3b72b6a4c3d5b2e110daf9760c887479826962a8abc6a61

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

    Filesize

    242B

    MD5

    b8a06c0fe701e5fa1319b96223f0fa3a

    SHA1

    a7accb201573adc5ad0d786367c9a83aa0d6ffe2

    SHA256

    965fa18d4b2f3ac8397e9a9dab35dab89c77b80f520c555cdffb1a95a07535b8

    SHA512

    e143ea8be502f75c4e3ba900ea8b900c8ea318b8156009525523d3d6b9dab2e587a66f51512d45831636e3091f1ac8d338492b942b485259bdb4e08cd760c0d5

  • C:\Users\Admin\AppData\LocalLow\Microsoft\Internet Explorer\Services\search_{0633EE93-D776-472f-A0FF-E1416B8B2E3A}.ico

    Filesize

    4KB

    MD5

    da597791be3b6e732f0bc8b20e38ee62

    SHA1

    1125c45d285c360542027d7554a5c442288974de

    SHA256

    5b2c34b3c4e8dd898b664dba6c3786e2ff9869eff55d673aa48361f11325ed07

    SHA512

    d8dc8358727590a1ed74dc70356aedc0499552c2dc0cd4f7a01853dd85ceb3aead5fbdc7c75d7da36db6af2448ce5abdff64cebdca3533ecad953c061a9b338e

  • C:\Users\Admin\AppData\Local\Temp\TarFD39.tmp

    Filesize

    60KB

    MD5

    c6486a1f45223a229d4f5528085d7558

    SHA1

    eff576402a61889d0f3106c3da69ecf98fa31940

    SHA256

    da0f9e77114e28eef8415fcf352370a7a6b45dc6292978f0ea6ffe6e920ebc36

    SHA512

    4908d3d26d16154c9cb4da19c9117eaec37a2ef95d5ab1e77ebcce337d1a85b05c5d7d437aebd1132d9b61c030d22ba451941240f7ad1a20c8764ce048ac148e

  • memory/1804-8-0x0000000000400000-0x00000000006A6000-memory.dmp

    Filesize

    2.6MB

  • memory/1804-7-0x0000000000400000-0x00000000006A6000-memory.dmp

    Filesize

    2.6MB

  • memory/1804-17-0x0000000000400000-0x00000000006A6000-memory.dmp

    Filesize

    2.6MB

  • memory/1804-9-0x0000000000400000-0x00000000006A6000-memory.dmp

    Filesize

    2.6MB

  • memory/1804-12-0x0000000000220000-0x0000000000221000-memory.dmp

    Filesize

    4KB

  • memory/1804-11-0x0000000000400000-0x00000000006A6000-memory.dmp

    Filesize

    2.6MB

  • memory/2856-0-0x0000000000400000-0x00000000006A6000-memory.dmp

    Filesize

    2.6MB

  • memory/2856-5-0x00000000001B0000-0x00000000001B1000-memory.dmp

    Filesize

    4KB

  • memory/2856-1-0x0000000000400000-0x00000000006A6000-memory.dmp

    Filesize

    2.6MB

  • memory/2856-2-0x0000000000400000-0x00000000006A6000-memory.dmp

    Filesize

    2.6MB

  • memory/2856-10-0x0000000000400000-0x00000000006A6000-memory.dmp

    Filesize

    2.6MB

  • memory/2856-6-0x0000000003810000-0x0000000003AB6000-memory.dmp

    Filesize

    2.6MB

  • memory/2856-3-0x0000000000400000-0x00000000006A6000-memory.dmp

    Filesize

    2.6MB

  • memory/2856-4-0x0000000000400000-0x00000000006A6000-memory.dmp

    Filesize

    2.6MB