Analysis

  • max time kernel
    140s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    29-12-2023 20:40

General

  • Target

    036c6e49f1a3ab7d106eef7daf3a4521.exe

  • Size

    327KB

  • MD5

    036c6e49f1a3ab7d106eef7daf3a4521

  • SHA1

    bd393ed4109d261098be05b8f59a007c5c28914d

  • SHA256

    8f81c4c154884d4e22e19693279c388edd9cd1bebbc5df68e738fd0ba70513a4

  • SHA512

    25dea214f3f567c45e001dc97b24a191bf9e1c4e272f70530bb15a858fefa7e3d49d53c0f6cebe30b20aba30716146a06ed6c491ffc2423ab4a940e5d57ab178

  • SSDEEP

    6144:FeXA47CURW+eirtnIwE0XzBTjrBLt4smgZKLY3Om2Nw0QLyUdKPZDq48bOo:FeXv7tRWwnIKBTjx6smg4LY+yKAVOo

Malware Config

Signatures

  • UPX packed file 3 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\036c6e49f1a3ab7d106eef7daf3a4521.exe
    "C:\Users\Admin\AppData\Local\Temp\036c6e49f1a3ab7d106eef7daf3a4521.exe"
    1⤵
    • Enumerates connected drives
    • Writes to the Master Boot Record (MBR)
    • Drops file in Program Files directory
    • Modifies system certificate store
    PID:2100

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\Cab8F8.tmp

    Filesize

    65KB

    MD5

    ac05d27423a85adc1622c714f2cb6184

    SHA1

    b0fe2b1abddb97837ea0195be70ab2ff14d43198

    SHA256

    c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

    SHA512

    6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

  • C:\Users\Admin\AppData\Local\Temp\Tar90B.tmp

    Filesize

    171KB

    MD5

    9c0c641c06238516f27941aa1166d427

    SHA1

    64cd549fb8cf014fcd9312aa7a5b023847b6c977

    SHA256

    4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

    SHA512

    936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

  • memory/2100-0-0x0000000000400000-0x00000000004BC000-memory.dmp

    Filesize

    752KB

  • memory/2100-61-0x0000000000400000-0x00000000004BC000-memory.dmp

    Filesize

    752KB

  • memory/2100-67-0x0000000000400000-0x00000000004BC000-memory.dmp

    Filesize

    752KB