Analysis

  • max time kernel
    117s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    18-01-2024 07:47

General

  • Target

    64dbb078907cdeb6e76ce5b8a21bb98a.xlsx

  • Size

    1.2MB

  • MD5

    64dbb078907cdeb6e76ce5b8a21bb98a

  • SHA1

    7a86be09afd55c1581a416ad9f948798540fe5e2

  • SHA256

    639f6453e961aa33302d34962ccdd29fbc9235b2a0df8b1ac0acc0bb040af7e0

  • SHA512

    bb5892d609e5535c26623711c82e9d9305c94b4e26fc53d90d493d6753ec47344c92c2d7c38fb9c208a03497d299b4cd081e75a64d47e6332dac4826b628dd70

  • SSDEEP

    24576:AUzra+Ha0EpjfQ91UD6/U5npIdB3X2itWtl4MW/wnbdQ0:nzra+Ha0EpLDWQnpIfn+l49/wnz

Score
8/10

Malware Config

Signatures

  • Blocklisted process makes network request 2 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 FindShellTrayWindow 2 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\64dbb078907cdeb6e76ce5b8a21bb98a.xlsx
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:2624
  • 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:2936

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/2624-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/2624-1-0x000000007276D000-0x0000000072778000-memory.dmp

    Filesize

    44KB

  • memory/2624-6-0x000000007276D000-0x0000000072778000-memory.dmp

    Filesize

    44KB

  • memory/2624-19-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/2624-24-0x000000007276D000-0x0000000072778000-memory.dmp

    Filesize

    44KB

  • memory/2936-7-0x0000000007FB0000-0x0000000007FB1000-memory.dmp

    Filesize

    4KB