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Analysis

  • max time kernel
    120s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    25/12/2023, 01:20

General

  • Target

    decrypted.xlsx

  • Size

    1.2MB

  • MD5

    4c942f8f3b2d89699d7d266294cbbc3a

  • SHA1

    7fbd824cf010ce2e0e0dff8a67e0f5ab1a6595e4

  • SHA256

    2c6eccc057782d6e6b390e306e50056683553540d34e7a187a4c407944618efc

  • SHA512

    eefa6131e31534aace66e0d91283be16137b0153b53e9d529359b501d8fa553840edfd89a2b9b43b54f3c042d8494d816edb18c43b37888eb6e54440a3f44987

  • SSDEEP

    24576:S0uqq0ya++dvdXXXXXXXXXXXXUXXXXXXXXXXXXXXXXHbNQePz+ikEc9IMA1zguMz:oNa++YbN5b+ikfN2sFHeTuLOg3np

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:2052
  • 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:2792

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/2052-13-0x00000000063E0000-0x00000000063F0000-memory.dmp

    Filesize

    64KB

  • memory/2052-1-0x000000007200D000-0x0000000072018000-memory.dmp

    Filesize

    44KB

  • memory/2052-6-0x000000007200D000-0x0000000072018000-memory.dmp

    Filesize

    44KB

  • memory/2052-9-0x00000000063E0000-0x00000000063F0000-memory.dmp

    Filesize

    64KB

  • memory/2052-10-0x00000000063E0000-0x00000000063F0000-memory.dmp

    Filesize

    64KB

  • memory/2052-11-0x00000000063E0000-0x00000000063F0000-memory.dmp

    Filesize

    64KB

  • memory/2052-8-0x00000000063E0000-0x00000000063F0000-memory.dmp

    Filesize

    64KB

  • memory/2052-12-0x00000000063E0000-0x00000000063F0000-memory.dmp

    Filesize

    64KB

  • memory/2052-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/2052-14-0x00000000063E0000-0x00000000063F0000-memory.dmp

    Filesize

    64KB

  • memory/2052-25-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/2052-30-0x000000007200D000-0x0000000072018000-memory.dmp

    Filesize

    44KB

  • memory/2792-7-0x0000000008B60000-0x0000000008B61000-memory.dmp

    Filesize

    4KB