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Analysis

  • max time kernel
    122s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    30/12/2023, 09:28

General

  • Target

    decrypted.xlsx

  • Size

    583KB

  • MD5

    819fa9bbd214effec31e7ee3e060cd36

  • SHA1

    7bfb5d4ffd767bc58141a0fc75fc403c9de746d9

  • SHA256

    14e84ec26421066444231207f0b412b3cf6aa1efdbeded80cd9cfe06ae89f9eb

  • SHA512

    46870062994a086abb86b65f9e7d343114f41382be4f2bde1dd4218e3014c07e1f483c73becf53b32d4d03826fe5e7afafbb3599149e7244091b66d527f04c2b

  • SSDEEP

    12288:B2jU1vyAtnucaEfAJoa+0zl/ZYTdwFu0OenxDzhCqwbRXbxZL:IjGbnlaEIJoa+D0Oe9knbnL

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\decrypted.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:3032
  • 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:2740

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2740-7-0x0000000008AE0000-0x0000000008AE1000-memory.dmp

    Filesize

    4KB

  • memory/3032-12-0x0000000006B70000-0x0000000006B80000-memory.dmp

    Filesize

    64KB

  • memory/3032-15-0x0000000006B70000-0x0000000006B80000-memory.dmp

    Filesize

    64KB

  • memory/3032-1-0x0000000071F7D000-0x0000000071F88000-memory.dmp

    Filesize

    44KB

  • memory/3032-8-0x0000000006B70000-0x0000000006B80000-memory.dmp

    Filesize

    64KB

  • memory/3032-9-0x0000000006B70000-0x0000000006B80000-memory.dmp

    Filesize

    64KB

  • memory/3032-10-0x0000000006B70000-0x0000000006B80000-memory.dmp

    Filesize

    64KB

  • memory/3032-6-0x0000000071F7D000-0x0000000071F88000-memory.dmp

    Filesize

    44KB

  • memory/3032-13-0x0000000006B70000-0x0000000006B80000-memory.dmp

    Filesize

    64KB

  • memory/3032-11-0x0000000006B70000-0x0000000006B80000-memory.dmp

    Filesize

    64KB

  • memory/3032-16-0x0000000006B70000-0x0000000006B80000-memory.dmp

    Filesize

    64KB

  • memory/3032-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/3032-14-0x0000000006B70000-0x0000000006B80000-memory.dmp

    Filesize

    64KB

  • memory/3032-17-0x0000000006B70000-0x0000000006B80000-memory.dmp

    Filesize

    64KB

  • memory/3032-30-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/3032-35-0x0000000071F7D000-0x0000000071F88000-memory.dmp

    Filesize

    44KB