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

Static analysis result for SHA-256 8f44e1b2539e7be5…

MALICIOUS

Office (OOXML) / .DOC

11.5 KB Created: 2018-03-07 09:39:00 UTC Authoring application: Microsoft Office Word 15.0000
MD5: 09f5e38d0736102c09611f27d852983c SHA-1: 7bbf3f3e89538cb8552007717f225f5471a5db38 SHA-256: 8f44e1b2539e7be5ac680003fa6e07880edfaa6458b9900fa42eb7eca70c019f
140 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File

The sample exhibits high-severity heuristics for remote template injection and external relationships, pointing to a malicious OOXML document. ClamAV identifies it as a downloader, specifically 'Doc.Downloader.Redline-9972754-0'. The embedded URL is likely used to fetch and execute a second-stage payload, consistent with a downloader's behavior.

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 (https://bb.realestateprivateportfolio.com/img/document.doc) — 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 high OOXML_EXTERNAL_REL
    External target in word/_rels/webSettings.xml.rels: https://bb.realestateprivateportfolio.com/img/document.doc
  • 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://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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