Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    04-01-2024 07:43

General

  • Target

    404a433afefd057211ea2974e71b85df.exe

  • Size

    234KB

  • MD5

    404a433afefd057211ea2974e71b85df

  • SHA1

    bdd82697b69b85c842ad78afc654ef12580dfb68

  • SHA256

    399d61fadbfe95fd273c524e9fd238d36faa3453374612d6d5279f0c5a1c0064

  • SHA512

    61be684012d4cc3b44cf14db2f64f19ebe284b854d720580163c8433fc9cf7286df52247bcf504d0a4a7335564a11994908eca2d21f97774856ba3d3a308a1ba

  • SSDEEP

    6144:/5hGwM+cg0JY5WYPSLOAdIMUT47NJeuq+LoJBkj:/5AwM+j8YPOzdIMC47NJeNyoHkj

Malware Config

Signatures

  • UPX packed file 6 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\404a433afefd057211ea2974e71b85df.exe
    "C:\Users\Admin\AppData\Local\Temp\404a433afefd057211ea2974e71b85df.exe"
    1⤵
    • Enumerates connected drives
    • Writes to the Master Boot Record (MBR)
    • Drops file in Program Files directory
    • Modifies system certificate store
    PID:2404

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\Cab58BC.tmp

    Filesize

    65KB

    MD5

    ac05d27423a85adc1622c714f2cb6184

    SHA1

    b0fe2b1abddb97837ea0195be70ab2ff14d43198

    SHA256

    c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

    SHA512

    6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

  • C:\Users\Admin\AppData\Local\Temp\Tar590D.tmp

    Filesize

    171KB

    MD5

    9c0c641c06238516f27941aa1166d427

    SHA1

    64cd549fb8cf014fcd9312aa7a5b023847b6c977

    SHA256

    4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

    SHA512

    936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

  • memory/2404-0-0x0000000000400000-0x0000000000488000-memory.dmp

    Filesize

    544KB

  • memory/2404-48-0x0000000000400000-0x0000000000488000-memory.dmp

    Filesize

    544KB

  • memory/2404-62-0x0000000000400000-0x0000000000488000-memory.dmp

    Filesize

    544KB

  • memory/2404-63-0x0000000000400000-0x0000000000488000-memory.dmp

    Filesize

    544KB

  • memory/2404-68-0x0000000000400000-0x0000000000488000-memory.dmp

    Filesize

    544KB

  • memory/2404-73-0x0000000000400000-0x0000000000488000-memory.dmp

    Filesize

    544KB