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Analysis

  • max time kernel
    141s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    19/01/2024, 04:49

General

  • Target

    66bdc9aa38a631de617e12f2117b1b2f.exe

  • Size

    236KB

  • MD5

    66bdc9aa38a631de617e12f2117b1b2f

  • SHA1

    6a74f23a9a032226acbdd5e610296e1526219763

  • SHA256

    8fb4798662c18b1403ea60e92519e5835bda390b929fdc246438f22b8dc820e3

  • SHA512

    3ffd9e025e766de4921ea4b629f4cf21de227366958db547463d89b022186c092e337d684f61ffb331b6fbbbf46cfe4d8fef6ebc111c6036292eff775b88c599

  • SSDEEP

    3072:9lELL7XOCw0xQCdMey44tVkZj+8FzB7C1XWLmjPUXiYR8PyqsX+QvUyRcso2w3DI:W3kOMeaavF17EP6qyqsX+dyro223ct

Malware Config

Signatures

  • UPX packed file 5 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Enumerates connected drives 3 TTPs 21 IoCs

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

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Drops file in Program Files directory 1 IoCs
  • Modifies system certificate store 2 TTPs 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\66bdc9aa38a631de617e12f2117b1b2f.exe
    "C:\Users\Admin\AppData\Local\Temp\66bdc9aa38a631de617e12f2117b1b2f.exe"
    1⤵
    • Enumerates connected drives
    • Writes to the Master Boot Record (MBR)
    • Drops file in Program Files directory
    • Modifies system certificate store
    PID:2880

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\Cab934C.tmp

    Filesize

    65KB

    MD5

    ac05d27423a85adc1622c714f2cb6184

    SHA1

    b0fe2b1abddb97837ea0195be70ab2ff14d43198

    SHA256

    c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

    SHA512

    6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

  • C:\Users\Admin\AppData\Local\Temp\Tar93AD.tmp

    Filesize

    171KB

    MD5

    9c0c641c06238516f27941aa1166d427

    SHA1

    64cd549fb8cf014fcd9312aa7a5b023847b6c977

    SHA256

    4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

    SHA512

    936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

  • memory/2880-0-0x0000000000400000-0x0000000000488000-memory.dmp

    Filesize

    544KB

  • memory/2880-60-0x0000000000400000-0x0000000000488000-memory.dmp

    Filesize

    544KB

  • memory/2880-61-0x0000000000400000-0x0000000000488000-memory.dmp

    Filesize

    544KB

  • memory/2880-66-0x0000000000400000-0x0000000000488000-memory.dmp

    Filesize

    544KB

  • memory/2880-67-0x0000000000400000-0x0000000000488000-memory.dmp

    Filesize

    544KB