High Severity

Attachment: MS OOXML file created by Administrator with zero edit time

Labels

Malware/Ransomware
Evasion
Exif analysis
File analysis

Description

Detects inbound PowerPoint (.pptx) and other MS OOXML attachments where the file creator is listed as 'Administrator' and the total edit time is zero minutes, while missing the 'TitlesOfParts' metadata field. This pattern may indicate programmatically generated or suspicious presentation files.

References

No references.

Sublime Security
Created Jun 12th, 2026 • Last updated Jun 12th, 2026
Feed Source
Sublime Core Feed
Source
GitHub
type.inbound
and any(filter(attachments, .file_type in ("pptx", "docx")),
        beta.parse_exif(.).creator == "Administrator"
        and any(beta.parse_exif(.).fields,
                .key == "TotalEditTime" and .value == "0"
        )
        and not 'TitlesOfParts' in map(beta.parse_exif(.).fields, .key)
)
MQL Rule Console
•Docs•Learning Labs

Playground

Test against your own EMLs or sample data.

Share

Post about this on your socials.

Get Started. Today.

Managed or self-managed. No MX changes.

Get Started
Deploy and integrate a free Sublime instance in minutes.
Get Started