Malicious Office (OOXML) / .DOC — malware analysis report

Static analysis result for SHA-256 4fd733e2928561aa…

MALICIOUS

Office (OOXML) / .DOC

10.9 KB Created: 2021-06-11 13:07:00 UTC Authoring application: Microsoft Office Word 12.0000 First seen: 2023-07-04
MD5: d9705d34caa244e8c0b76a10d6b8b566 SHA-1: 5d5820c921b54534d9fa3460bfa421c17a9a76d6 SHA-256: 4fd733e2928561aa5f386f4b193e6cde154874aadcdba70e0f74315fd2ed521e
62 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution

The OOXML document contains heuristics indicating remote template injection and external relationships, pointing towards an attempt to load external content. The presence of an unknown reputation URL, https://zyp.to/n4rni, strongly suggests this is the target for the malicious payload. The document body itself is empty, providing no further context on the lure.

Heuristics 3

  • Remote template injection high OOXML_REMOTE_TEMPLATE
    Document references a remote template URL (https://zyp.to/n4rni) — 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/settings.xml.rels: https://zyp.to/n4rni
  • 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 https://zyp.to/n4rni
    • 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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