Analysis

  • max time kernel
    141s
  • max time network
    127s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-03-2024 09:44

General

  • Target

    b4645ee7ae87af55cf4f3e5d5db82d19.exe

  • Size

    341KB

  • MD5

    b4645ee7ae87af55cf4f3e5d5db82d19

  • SHA1

    d0a46e410bc7ebef589f918069df48526b51785a

  • SHA256

    ff896d6d0939c8ac6c9ecec58b2247bd520de94eadc2b3b9b5fe43c0b31051cb

  • SHA512

    f7889864c3b5504582c2a807e573179364bb16da2e60d63f3c8715cb952527096adf73ba0f23686166c65ec5f2c1ff8c16220ac9239235b698b704e09131b64a

  • SSDEEP

    6144:9fZ/nwzIhoZib9i0ju9BKVoEZUWX3kLOlrbGTvGx1tyL+m9bo+lV:9fpPOZiBiq3zxXWOB6LEtyL+WJlV

Malware Config

Signatures

  • UPX packed file 2 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.

  • Modifies system certificate store 2 TTPs 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b4645ee7ae87af55cf4f3e5d5db82d19.exe
    "C:\Users\Admin\AppData\Local\Temp\b4645ee7ae87af55cf4f3e5d5db82d19.exe"
    1⤵
    • Enumerates connected drives
    • Writes to the Master Boot Record (MBR)
    • Modifies system certificate store
    PID:4568

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/4568-0-0x0000000000400000-0x00000000004BF000-memory.dmp

    Filesize

    764KB

  • memory/4568-6-0x0000000000400000-0x00000000004BF000-memory.dmp

    Filesize

    764KB