Analysis

  • max time kernel
    141s
  • max time network
    127s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/12/2023, 03:14

General

  • Target

    4f67f7ff2b49fa073cc904cb2267b67e.exe

  • Size

    236KB

  • MD5

    4f67f7ff2b49fa073cc904cb2267b67e

  • SHA1

    a58e074f5ce6cb6e50338deda9784704324e7c39

  • SHA256

    e18efe6f18e3f39e9cc4658126f73f5227b9d6eaaf384d49b0002439c50cfc6d

  • SHA512

    c949d31bf4d0217e9a1222963254a6f52b99a06cf209651ad2d39005df5147d4317e0858ff823be3432b7e10224e83fefba18a4938b6fcbe24f02c7fc0ee6289

  • SSDEEP

    6144:i03XFuM4nLSgTh2IcymPCHWIlm1Fa1asHPncBGObsoS:ic1udnLSg03ymK2Ilm1F4a4ktbFS

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\4f67f7ff2b49fa073cc904cb2267b67e.exe
    "C:\Users\Admin\AppData\Local\Temp\4f67f7ff2b49fa073cc904cb2267b67e.exe"
    1⤵
    • Enumerates connected drives
    • Writes to the Master Boot Record (MBR)
    • Drops file in Program Files directory
    • Modifies system certificate store
    PID:2972

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/2972-0-0x0000000000400000-0x0000000000489000-memory.dmp

    Filesize

    548KB

  • memory/2972-11-0x0000000000400000-0x0000000000489000-memory.dmp

    Filesize

    548KB

  • memory/2972-12-0x0000000000400000-0x0000000000489000-memory.dmp

    Filesize

    548KB

  • memory/2972-17-0x0000000000400000-0x0000000000489000-memory.dmp

    Filesize

    548KB

  • memory/2972-20-0x0000000000400000-0x0000000000489000-memory.dmp

    Filesize

    548KB