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Analysis

  • max time kernel
    102s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    21/04/2023, 06:03

General

  • Target

    175.xls

  • Size

    1.1MB

  • MD5

    4985d88abcec551ec55f1cbd62fee464

  • SHA1

    59ca04cbc3ba18bea8aa9f5bf42f77650076063d

  • SHA256

    854a52693609fa9e77cc388d175429f1d4dff68fdcd69ca17a754d7583cf962d

  • SHA512

    b105f9666470effeebb3ccc3ab043953aaa0c7c6dba6804586b93c74dcd64ff4b82e685b5532dcbcd0a1e94ed702f9338220d73b241321d0e36d9ff983a28532

  • SSDEEP

    24576:Zu9V+muDLwBk0ZDLwBk5iCtsIc2y7czeftNA3v1J:ZuN+4htvfLANA/1

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\175.xls
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    PID:1712
  • 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:668

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1712-54-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/1712-64-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB