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Analysis

  • max time kernel
    130s
  • max time network
    130s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    23/04/2024, 03:36

General

  • Target

    c3c988ffa24e26dfd207a3380f109684bbcd122947226c3bbf3c09fd96fa236d.exe

  • Size

    56KB

  • MD5

    4440eed36cb99f5529238ec67e1e58ae

  • SHA1

    bdf33a7db224ac839e11058ed631e49969e92c1e

  • SHA256

    c3c988ffa24e26dfd207a3380f109684bbcd122947226c3bbf3c09fd96fa236d

  • SHA512

    b2d62d799145ad9159285458399a6786d9901fcc7a74fdedd91ec1ade10247f3b56f4b09716368083e01256233c104d9c07398f2e57dd65f2739ee44bc923c08

  • SSDEEP

    768:/mnVAp7lyHeUueqkpI8dBwNQnxxy+CVr/FC0uVexxhU98eF:enVA9k+leqkpI8dBwCy+er/F5Hi9X

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies system certificate store 2 TTPs 8 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c3c988ffa24e26dfd207a3380f109684bbcd122947226c3bbf3c09fd96fa236d.exe
    "C:\Users\Admin\AppData\Local\Temp\c3c988ffa24e26dfd207a3380f109684bbcd122947226c3bbf3c09fd96fa236d.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1724
    • C:\Users\Admin\AppData\Local\Temp\codecupdate.exe
      "C:\Users\Admin\AppData\Local\Temp\codecupdate.exe"
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      PID:1760

Network

MITRE ATT&CK Enterprise v15

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\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    344B

    MD5

    b988e08d59330974b7352011d4720bec

    SHA1

    3140715d61096f0d6f548abc4963aab5a76b4d1b

    SHA256

    e3ea258b4ff3d64bb984904a1e172ef23a4a1a49512dba753da0a0a4c5835d20

    SHA512

    955db2eb4624dfe28f60e85d0dbc62725ae5e09c47a4e6e26ac56e8b288b9982e43961bf8ef4f6d89aeeafb93c2ce0090aecdcf56f1628b1c695abf9b16e130b

  • C:\Users\Admin\AppData\Local\Temp\Tar1858.tmp

    Filesize

    177KB

    MD5

    435a9ac180383f9fa094131b173a2f7b

    SHA1

    76944ea657a9db94f9a4bef38f88c46ed4166983

    SHA256

    67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

    SHA512

    1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

  • C:\Users\Admin\AppData\Local\Temp\codecupdate.exe

    Filesize

    56KB

    MD5

    ff62fb8d0785c1459c275faa5f8d260b

    SHA1

    564e08a024147dfa0d190c444a489376d7ca55e9

    SHA256

    e8de83cca4cdfb4a847bccf0384494dacd013a34f1c11a36309864450541d3d5

    SHA512

    7eb229c83e96146ca196cdc3617a75a19c84a581e6afc2c86c46f8215ced0470a46c74da684d05cf4f224de286a64db635ac799e4802ee8050d1aac84a8b8241

  • memory/1724-1-0x0000000000400000-0x0000000000408000-memory.dmp

    Filesize

    32KB

  • memory/1760-8-0x0000000000400000-0x0000000000408000-memory.dmp

    Filesize

    32KB