Analysis

  • max time kernel
    103s
  • max time network
    31s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    13/01/2023, 00:51

General

  • Target

    ae82f0758b7053c02e938d4816c9952f53f6a9b9.xlsx

  • Size

    1.1MB

  • MD5

    31b0ef590ce27c30d07d9115761f7527

  • SHA1

    ae82f0758b7053c02e938d4816c9952f53f6a9b9

  • SHA256

    73fbb286e52bc4946ebb114bd3cbd218395079930a983e0b6248bd49a5fc9da7

  • SHA512

    fa80c60012303ff0dbc0e0849156710c431d8ec7918220366f7fba70a77215a78aef4d34d409eb98a46fe04e1ef73c5befdd667bd390f505e92e2fd66f2e9720

  • SSDEEP

    24576:VY96/v0d0Ks4hspj2Lt6WMXXiSi1XxqnHxbKYswdUdU2xIOCNfl6VMac:VY96/xKLhBtdBtRxIbVs4vzjtAbc

Score
8/10

Malware Config

Signatures

  • Blocklisted process makes network request 1 IoCs
  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Launches Equation Editor 1 TTPs 1 IoCs

    Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.

  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\ae82f0758b7053c02e938d4816c9952f53f6a9b9.xlsx
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    PID:1528
  • C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
    "C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
    1⤵
    • Blocklisted process makes network request
    • Launches Equation Editor
    PID:1600

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/1528-54-0x000000002F8B1000-0x000000002F8B4000-memory.dmp

          Filesize

          12KB

        • memory/1528-55-0x00000000711B1000-0x00000000711B3000-memory.dmp

          Filesize

          8KB

        • memory/1528-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

          Filesize

          64KB

        • memory/1528-57-0x000000007219D000-0x00000000721A8000-memory.dmp

          Filesize

          44KB

        • memory/1528-58-0x0000000075091000-0x0000000075093000-memory.dmp

          Filesize

          8KB

        • memory/1528-60-0x000000007219D000-0x00000000721A8000-memory.dmp

          Filesize

          44KB

        • memory/1528-61-0x000000005FFF0000-0x0000000060000000-memory.dmp

          Filesize

          64KB

        • memory/1528-62-0x000000007219D000-0x00000000721A8000-memory.dmp

          Filesize

          44KB