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

Static analysis result for SHA-256 f00fe4e6da3aaad2…

MALICIOUS

Office (OOXML) / .DOC

720.6 KB Created: 2022-01-21 06:32:00 UTC Authoring application: Microsoft Office Word 15.0000 First seen: 2022-09-28
MD5: da582d905814a49f6ce5b32a069f0b95 SHA-1: 66d6ecc5079173286dfe5cc9db526dc2f425665d SHA-256: f00fe4e6da3aaad25d1ac8b268ffeebc98bda184e3df224905626908be24d415
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The document employs remote template injection and external relationship heuristics, pointing to a malicious external resource at http://sunlin.org/info/style?title=2201212. It also contains a heuristic indicating it's a password-protected archive lure, suggesting the document's purpose is to trick the user into downloading an encrypted payload. The embedded URL is likely part of this delivery mechanism.

Heuristics 4

  • Remote template injection high OOXML_REMOTE_TEMPLATE
    Document references a remote template URL (http://sunlin.org/info/style?title=2201212) — 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • External relationship medium OOXML_EXTERNAL_REL
    External target in word/_rels/settings.xml.rels: http://sunlin.org/info/style?title=2201212
  • 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://sunlin.org/info/style?title=2201212
    • http://schemas.microsoft.com/office/word/2010/wordprocessingCanvas
    • http://schemas.openxmlformats.org/markup-compatibility/2006
    • http://schemas.openxmlformats.org/officeDocument/2006/relationships
    • http://schemas.openxmlformats.org/officeDocument/2006/math
    • http://schemas.microsoft.com/office/word/2010/wordprocessingDrawing
    • http://schemas.openxmlformats.org/drawingml/2006/wordprocessingDrawing
    • http://schemas.openxmlformats.org/wordprocessingml/2006/main
    • http://schemas.microsoft.com/office/word/2010/wordml
    • http://schemas.microsoft.com/office/word/2012/wordml
    • http://schemas.microsoft.com/office/word/2010/wordprocessingGroup
    • http://schemas.microsoft.com/office/word/2010/wordprocessingInk
    • http://schemas.microsoft.com/office/word/2006/wordml
    • http://schemas.microsoft.com/office/word/2010/wordprocessingShape

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