Analysis

  • max time kernel
    141s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    24-12-2023 17:52

General

  • Target

    09a5e5e9b526caf4b53d7e9c4079d933.exe

  • Size

    329KB

  • MD5

    09a5e5e9b526caf4b53d7e9c4079d933

  • SHA1

    3c79bcba9c9ce6ef1bc92ae467f202f6e93d15b8

  • SHA256

    a59217c8b9d83e01f91e667f61aa3624ad6224dcf61af30671d14f365e96b12d

  • SHA512

    c92384afb33a260fcad80ef9c6cb382277308ef3a2220b838a1a2f4b7d9ce19bfa0b5b21fa0a0640547ce5efcaed6ea26c29781aa3bfcc7fcc38badfe9b8c188

  • SSDEEP

    6144:IePJYhcvhLxotp++sCTHUIKz3JWGYBjWo8lp7V4cXXQhcj+ZuFRinl0wZCb:IePJYIh9of++skOYBjDaBHXg+aum3o

Malware Config

Signatures

  • UPX packed file 4 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\09a5e5e9b526caf4b53d7e9c4079d933.exe
    "C:\Users\Admin\AppData\Local\Temp\09a5e5e9b526caf4b53d7e9c4079d933.exe"
    1⤵
    • Enumerates connected drives
    • Writes to the Master Boot Record (MBR)
    • Drops file in Program Files directory
    • Modifies system certificate store
    PID:2980

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\Cab4404.tmp

    Filesize

    65KB

    MD5

    ac05d27423a85adc1622c714f2cb6184

    SHA1

    b0fe2b1abddb97837ea0195be70ab2ff14d43198

    SHA256

    c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

    SHA512

    6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

  • C:\Users\Admin\AppData\Local\Temp\Tar4446.tmp

    Filesize

    171KB

    MD5

    9c0c641c06238516f27941aa1166d427

    SHA1

    64cd549fb8cf014fcd9312aa7a5b023847b6c977

    SHA256

    4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

    SHA512

    936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

  • memory/2980-0-0x0000000000400000-0x00000000004BC000-memory.dmp

    Filesize

    752KB

  • memory/2980-61-0x0000000000400000-0x00000000004BC000-memory.dmp

    Filesize

    752KB

  • memory/2980-62-0x0000000000400000-0x00000000004BC000-memory.dmp

    Filesize

    752KB

  • memory/2980-67-0x0000000000400000-0x00000000004BC000-memory.dmp

    Filesize

    752KB