Analysis

  • max time kernel
    135s
  • max time network
    132s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    26-12-2023 07:28

General

  • Target

    5c8c735108b6771bc6be3f3f13b6d24c.exe

  • Size

    51KB

  • MD5

    5c8c735108b6771bc6be3f3f13b6d24c

  • SHA1

    e5dc207235f98c83b48060dfca021b6b3c36aa37

  • SHA256

    75fdfab7d4c629aa0a57392c89ffbee3d9502ad6204622e2247d564345b3b7ad

  • SHA512

    94f6445cbcfa0e05029456911fb2ae9bc9161810a1c126b5ba7d852339e0f84a78118bf1a48583d76377bf052609f6bd48fcfc3fef5a7dfea934be447bb3b16f

  • SSDEEP

    768:Hw+F8XmROl6xrczvQ45jtNZ4UTpuklKfwpTWXqYSsPMNynD+KCgdNDb/Xaln:Hw+F8XmC6xrQxTkWTSKsbX/XA

Score
10/10

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 7 IoCs

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

  • Drops autorun.inf file 1 TTPs 16 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Drops file in Windows directory 4 IoCs
  • Modifies Internet Explorer settings 1 TTPs 36 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5c8c735108b6771bc6be3f3f13b6d24c.exe
    "C:\Users\Admin\AppData\Local\Temp\5c8c735108b6771bc6be3f3f13b6d24c.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Enumerates connected drives
    • Drops autorun.inf file
    • Drops file in Windows directory
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:2356
    • C:\Program Files\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files\Internet Explorer\IEXPLORE.EXE" http://mimi.48du.com/power.asp?myid=0681219283811
      2⤵
      • Modifies Internet Explorer settings
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2644
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2644 CREDAT:275457 /prefetch:2
        3⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:3068

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

    65KB

    MD5

    ac05d27423a85adc1622c714f2cb6184

    SHA1

    b0fe2b1abddb97837ea0195be70ab2ff14d43198

    SHA256

    c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

    SHA512

    6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

  • 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

    2d1928ffc13b8e42ff399e17cf891c2a

    SHA1

    b3daf25b5ef9ae4600d25ff2d9fb0b09475f7659

    SHA256

    cb6e0dc9318e462e220d1b363ea19e87080226c433f9135bed4e51a5b037deac

    SHA512

    dd88b5c796c3ce50bfacacb8ac5e2fa82be0583837d42032391aba93fc285d30e20a3a40e1508277a58313c4abb5eca0e01d8d663a16c3a90902ac97deab9554

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

    Filesize

    304B

    MD5

    d87bdb9f71698089990786bce57c50a3

    SHA1

    2fecab1225d432993e69c16194d22409e83bda56

    SHA256

    7aaab9691fe4d7cf4f5c57b2065666676d88e71230cc78d86833b25874ad105a

    SHA512

    3c2c8c097a4744053dc362a95c4ffd83191b1768301bb16eab44978eebc4fd8b0c6705db35c1b2d042009b023dfad380b1d6b76c87adaf0010583c1649edc69d

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

    Filesize

    304B

    MD5

    62cfd7eec652e48ca71b4ff5004cf476

    SHA1

    ae7799c7deda7f2e33a6b31e877f5f1aa33fc783

    SHA256

    7173c3d6fd930ca0fbdd7dbb3413306c8269bfff06ad7f0891f42c5c377ee2fd

    SHA512

    833522fea5e260d3936d9e83d83c0277e883d2f8ec7634a0322b030e073bebc77d2773128e9789c99c6894ec0fa520f319de34257206245ee8e4507b05dc71d9

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

    Filesize

    304B

    MD5

    66a921b1d8b2fed4b605faad87715003

    SHA1

    1357a44918d365773c2a446f723a4c27dba2f8d7

    SHA256

    89420287ac1375d30f1d778132095aa2790a71193b244484065649a9befcc891

    SHA512

    5684366954341384e6c830dec87ea0f2c496b64c89f454b6cf1db923591d723a956282a4dac0c78743432c2b483025bd5f346d56bd3152598ea6b77f6da51626

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

    Filesize

    304B

    MD5

    92c6c6fd0ad22046549e53172d093dad

    SHA1

    265172b740f841adda1f33987fbbe93f554b90f5

    SHA256

    9073d005c089ce2c92940dbfec1fc48cd1dc3b5df563aa1558fe5b4391424bea

    SHA512

    f03695fbf8c80d198e584c76b46dce04f61294445c6cce78412bfd1b9f0fbabd4949799ffefb0bd2e0461f99a5bff564c399ad7fd22825d1e3c221ef5bfd5c89

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

    Filesize

    304B

    MD5

    43c6a680979297434e421c9980deac34

    SHA1

    f7d6de4d787a64ad0c285f663c7d46198fc79be5

    SHA256

    98734460c8e513ddd88f1f71c74dc3c5514a641184dd9e4d1d472ed4749bf07d

    SHA512

    0c9b7459d12ea9793a5a75f6fe26a2426d51db6be2668913cbcc6a488332d704cb7591584126ac970ad26e1e7585d82a9af854dda7493d06eccaf9f4654a406e

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

    Filesize

    304B

    MD5

    f9685f0e1e0935e004a6946acc3d8845

    SHA1

    ebf90139dfd397719a566b98f4761b0cf5fd9177

    SHA256

    a5f354c090aacf487c07101cbb1408b4a123c079cb166c33a19fa2cf1a8fcb02

    SHA512

    420bc0c5cc220e5dad51165c88bf8b34de9af361e1838de8f10484ee17b054a2a4081f2828578b1dffd8a4f6a522fb98ea13569362a5bc25cb3438f29d695a94

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

    Filesize

    304B

    MD5

    fdf846cbaaa261f6c381cad70553e80c

    SHA1

    befda158055bae211a2095687f1881909b5c680c

    SHA256

    72d35f5d977823764568b81b4c5ee62752a66022e10af868b53e298a8314146a

    SHA512

    2d0c0d983cefb472d26387d408871a6f0bd8109c6c0dba1e3344c0ee786a1a5cfd1030b0433de73e5a107d8b16ad02e300f8ac8f35ede9313369330eb8087c68

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

    Filesize

    304B

    MD5

    0e82c438987150a84778ee372b05fbce

    SHA1

    f25421aa974b74b950535e312ef88613ff801408

    SHA256

    2984ffe0b62b58285b4e4dd97149703b34a0a354bad994d35f4f8721b74dc139

    SHA512

    6ab937a14c0aaa3d75ca0a1c5664b2d8bdfaf9d86e5747a18f2bb12826faa9e25fa8dfd8148de11a63a8cacd6ff77ad9e724106ab3f17ef8c4fd64aa5d4e437d

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

    Filesize

    304B

    MD5

    f1cb24592f50659dce9d8ace711a7d0a

    SHA1

    808b88cd01f2032502d467c7f2401372425986ad

    SHA256

    c43cda4329a3b5455b997c6b63e07090584c77300350c2eb1d2599823d10aa2f

    SHA512

    18664c2261577481d20543b6a7522382e544b984b2129793adbcaed85ff3593a1b97f368ec2727e6df134f57ec59aba4c6778232f09349e6991ab362de2edfd4

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

    Filesize

    304B

    MD5

    1fe702819350b066f44a111823dbcf4e

    SHA1

    d1a79c3d2edf7852d8bec268c36959ea495451af

    SHA256

    4eeeb1717c36969647ccafe3e56276253c64b1d9c25baf78295f187590ae6a0e

    SHA512

    b54e67e4f97522bac287b990560288f1e2745e1d57510c394eef7e814c107f5850d3d99fc0047bad6549848f1382bcf633b32350e8af9bc3872d756934ffefef

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

    Filesize

    304B

    MD5

    91952671a2cdd90f7285ddb3d5cb43ee

    SHA1

    0512a61d8457c3d2eecfd6f9b949f17154ca88ab

    SHA256

    aa1719301f1f39405fd336a0959584da14b21426e7f4e5eb898ccdd9d71063cb

    SHA512

    1c7e238ceb7897132c82446c99d9ae7fedd80bce75b31fe7e1a848cb2e65335360bb0d1db45a1c71c5364675a7bfbcf3a6f217bc80bbad751de8d1f8d63a7688

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

    Filesize

    304B

    MD5

    e7a603364baf77214808b7086cd4c137

    SHA1

    c6a33a25fd353a515185861af9d479b84dd7db88

    SHA256

    6edd3cf77919964ace296d730c12ac8acbe181682bafb7b0f85e8354bd4b59ca

    SHA512

    9aa646f6b69b4c26736bdf09349b38e663aa1ae702bb36b067cbe8026eeecd2a8e50c6e0db6b77c9131b0289b6df1f8fe9a93ce35fc4a9f97b40d5b089283ee3

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

    Filesize

    304B

    MD5

    2b92d902a2100e8c89709f752cc7e28f

    SHA1

    6f0bea1d125686328961dbecbe8b6819f75b0ec8

    SHA256

    312668296481fba65e8a5dfe94e608f3573fe72fcf3c57c3909d68a20298040d

    SHA512

    662ec55cec1dbf13e9302d4d617cf7ec7021f9ccdbb90e77a183f42e3b4f408ef7f2c6fe7ab5f2a8a68429b2364c0de4238029c2ef248168804da5630dc14dfd

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

    Filesize

    242B

    MD5

    578aa3c115ee6e01bc8af7bc565db9e3

    SHA1

    13501d2a8c57af70b990de5ecbbac9f07df1b1df

    SHA256

    971e4d7095557af998a13a9f57c364311563d5c2d73aef0610adbb87c75163ee

    SHA512

    98922c2797295f346fe52736a7bab03b1c6dcb15469911007a8b0ef62e3c3ecf49abdb4f56c19fd8193a8b59c9fd36d431166cc1543a938eab672f4c169f0f4f

  • 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\Tar4273.tmp

    Filesize

    171KB

    MD5

    9c0c641c06238516f27941aa1166d427

    SHA1

    64cd549fb8cf014fcd9312aa7a5b023847b6c977

    SHA256

    4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

    SHA512

    936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

  • memory/2356-8-0x0000000000400000-0x0000000000423000-memory.dmp

    Filesize

    140KB

  • memory/2356-0-0x0000000000400000-0x0000000000423000-memory.dmp

    Filesize

    140KB

  • memory/2356-4-0x0000000000220000-0x0000000000222000-memory.dmp

    Filesize

    8KB