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Analysis

  • max time kernel
    141s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/02/2024, 22:10

General

  • Target

    8aa9749d179b714570e84f66a12e16a5.exe

  • Size

    328KB

  • MD5

    8aa9749d179b714570e84f66a12e16a5

  • SHA1

    59b7aa7d649ff62c02791ea1bedb5cb68f723a5c

  • SHA256

    57a3bcd0d48ee165819c3b07f82699940e6201a4d1d560c0b3ae6cab8fecd9e8

  • SHA512

    3b3a876302fe8411791a2ff680df80f0c5056058f327b91896d0e066708aaa6b858cbfd56b47f1a60bd95a653040883b4beec271fd9f675c78f652c364683817

  • SSDEEP

    6144:AeXA47CURW+eirtnIwE0XzBTjrBLt4smgZGeYBgQ1/PEnDreAYS0CxU7cD:AeXv7tRWwnIKBTjx6smghMcnXelBPcD

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\8aa9749d179b714570e84f66a12e16a5.exe
    "C:\Users\Admin\AppData\Local\Temp\8aa9749d179b714570e84f66a12e16a5.exe"
    1⤵
    • Enumerates connected drives
    • Writes to the Master Boot Record (MBR)
    • Drops file in Program Files directory
    • Modifies system certificate store
    PID:4500

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/4500-0-0x0000000000400000-0x00000000004BC000-memory.dmp

    Filesize

    752KB

  • memory/4500-11-0x0000000000400000-0x00000000004BC000-memory.dmp

    Filesize

    752KB

  • memory/4500-13-0x0000000000400000-0x00000000004BC000-memory.dmp

    Filesize

    752KB

  • memory/4500-16-0x0000000000400000-0x00000000004BC000-memory.dmp

    Filesize

    752KB

  • memory/4500-17-0x0000000000400000-0x00000000004BC000-memory.dmp

    Filesize

    752KB