Malicious Office (OOXML) — malware analysis report

Static analysis result for SHA-256 5c9df867c0f8fcb0…

MALICIOUS

Office (OOXML)

10.1 KB Created: 2018-03-07 09:39:00 UTC Authoring application: Microsoft Office Word 12.0000
MD5: bc31c05135d39ed227dbcea6593ecfae SHA-1: e6b870162005311c731d5dbffcdf0d13f76f0ace SHA-256: 5c9df867c0f8fcb0c7a618ee1d10fc72d377f2e26b706314cf25dec589780633
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is an OOXML document that contains a heuristic firing for remote template injection, pointing to a suspicious URL. This indicates the document is likely attempting to download and execute a secondary payload. ClamAV also detected it as a downloader, further supporting this assessment. The document body is minimal and does not provide additional context.

Heuristics 4

  • ClamAV: Doc.Downloader.Redline-9972754-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Redline-9972754-0
  • Remote template injection high OOXML_REMOTE_TEMPLATE
    Document references a remote template URL (http://www.5z8.info/peepshow_j0e6ex_php-start_GPS_tracking-user) — a common remote-template-injection vector used by Hancitor, Emotet and many phishing campaigns. Word can fetch and apply the remote template; macros in that template may execute depending on Office policy and trust state.
  • External relationship medium OOXML_EXTERNAL_REL
    External target in word/_rels/webSettings.xml.rels: http://www.5z8.info/peepshow_j0e6ex_php-start_GPS_tracking-user
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://www.5z8.info/peepshow_j0e6ex_php-start_GPS_tracking-user
    • http://schemas.openxmlformats.org/markup-compatibility/2006
    • http://schemas.openxmlformats.org/officeDocument/2006/relationships
    • http://schemas.openxmlformats.org/officeDocument/2006/math
    • http://schemas.openxmlformats.org/drawingml/2006/wordprocessingDrawing
    • http://schemas.openxmlformats.org/wordprocessingml/2006/main
    • http://schemas.microsoft.com/office/word/2006/wordml

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