Analysis

  • max time kernel
    121s
  • max time network
    127s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    27-03-2024 17:39

General

  • Target

    authroot.stl

  • Size

    171KB

  • MD5

    9c0c641c06238516f27941aa1166d427

  • SHA1

    64cd549fb8cf014fcd9312aa7a5b023847b6c977

  • SHA256

    4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

  • SHA512

    936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

  • SSDEEP

    1536:+AuJ+lCUs0RvWqgCyPW5BXNWdm1wpyru2/3EwjYoz0VDTrubmt6mJp:+9J+q0RuXCyfdmAyru2/RAKtgp

Score
8/10

Malware Config

Signatures

  • Blocklisted process makes network request 2 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    C:\Windows\system32\rundll32.exe cryptext.dll,CryptExtOpenCTL C:\Users\Admin\AppData\Local\Temp\authroot.stl
    1⤵
    • Blocklisted process makes network request
    PID:2964

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • 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\F0ACCF77CDCBFF39F6191887F6D2D357

    Filesize

    242B

    MD5

    af419c3a6e4488fa366bb7f19174d09a

    SHA1

    6d508099238789982deef30e3a7a4f7b7b053c7c

    SHA256

    d965ac95f9fcf9f5bd15ab13e0a185fbadf4bbf0d1be7d2244af13f632473b66

    SHA512

    62ed2639182e2ccc80983b93ec24dcbfa3860663150baaaa01324da9127490afd53883ac89658783e2de506a7b59b16f1522f5ce3c615063683b29a7cef08183

  • C:\Users\Admin\AppData\Local\Temp\Tar371C.tmp

    Filesize

    177KB

    MD5

    435a9ac180383f9fa094131b173a2f7b

    SHA1

    76944ea657a9db94f9a4bef38f88c46ed4166983

    SHA256

    67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

    SHA512

    1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a