Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    21-03-2024 18:01

General

  • Target

    dc444ad33b8902a32a733b37e7fe63f1.dll

  • Size

    556KB

  • MD5

    dc444ad33b8902a32a733b37e7fe63f1

  • SHA1

    447c9406314520914478aecf836d5f2880c46b5b

  • SHA256

    1ae3ab46cbff2777115e5026a1066d48edef9b2e2bec30a9e5a9507d7e7f4c8a

  • SHA512

    176c41251d764b9e590b6fd4aed62068504d7ed5c5889da1836244be0740fd8a0940050c0338c1458ff81bf2c03de9deb044487acc16a02214c5e32d038b24c1

  • SSDEEP

    12288:mQbIiJRNZEg9mgLQamuAZ4NsWLlNrUVFuOL/CE888888888888W88888888888yc:PfZN9ca9nNvD2AdW1HGK/

Malware Config

Signatures

  • Installs/modifies Browser Helper Object 2 TTPs 2 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • 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 registry class 14 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\dc444ad33b8902a32a733b37e7fe63f1.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2368
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\dc444ad33b8902a32a733b37e7fe63f1.dll
      2⤵
      • Installs/modifies Browser Helper Object
      • Writes to the Master Boot Record (MBR)
      • Modifies registry class
      PID:1204

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/1204-0-0x00000000143C0000-0x000000001451F000-memory.dmp

    Filesize

    1.4MB

  • memory/1204-1-0x0000000001D60000-0x0000000001D62000-memory.dmp

    Filesize

    8KB