Malicious Office (OOXML) — malware analysis report

Static analysis result for SHA-256 1cd85bfe37769fc4…

MALICIOUS

Office (OOXML)

105.5 KB Created: 2019-04-08 07:23:00 UTC Authoring application: Microsoft Office Word 15.0000 First seen: 2020-02-04
MD5: 195cdec884145a7fe9085f68f1bc795a SHA-1: 732fe409d5b2da307c90bd68fe72f2347696c53d SHA-256: 1cd85bfe37769fc4320dafb7bd073e528975e75554a4ab5a48a50126707ae9fa
70 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The sample is a malicious OOXML document that uses a remote template injection to fetch content from 'http://www.tfu.ae/README.txt'. This indicates an attempt to load external resources, likely for a second-stage download. The presence of external hyperlinks and relationships further supports this malicious intent.

Heuristics 4

  • Remote template injection high OOXML_REMOTE_TEMPLATE
    Document references a remote template URL (http://www.tfu.ae/README.txt) — 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: http://www.tfu.ae/README.txt
  • External hyperlinks (1) low OOXML_EXTERNAL_HYPERLINKS
    Document contains 1 external hyperlink — clickable URLs are stored as external relationships. First target: .
  • 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.tfu.ae/README.txt Document hyperlink
    • http://schemas.microsoft.com/office/word/2010/wordprocessingCanvasDocument hyperlink
    • http://schemas.openxmlformats.org/markup-compatibility/2006Document hyperlink
    • http://schemas.openxmlformats.org/officeDocument/2006/relationshipsDocument hyperlink
    • http://schemas.openxmlformats.org/officeDocument/2006/mathDocument hyperlink
    • http://schemas.microsoft.com/office/word/2010/wordprocessingDrawingDocument hyperlink
    • http://schemas.openxmlformats.org/drawingml/2006/wordprocessingDrawingDocument hyperlink
    • http://schemas.openxmlformats.org/wordprocessingml/2006/mainDocument hyperlink
    • http://schemas.microsoft.com/office/word/2010/wordmlDocument hyperlink
    • http://schemas.microsoft.com/office/word/2012/wordmlDocument hyperlink
    • http://schemas.microsoft.com/office/word/2010/wordprocessingGroupDocument hyperlink
    • http://schemas.microsoft.com/office/word/2010/wordprocessingInkDocument hyperlink
    • http://schemas.microsoft.com/office/word/2006/wordmlDocument hyperlink
    • http://schemas.microsoft.com/office/word/2010/wordprocessingShapeDocument hyperlink
    • http://ns.adobe.com/xap/1.0/Document hyperlink
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#Document hyperlink
    • http://purl.org/dc/elements/1.1/Document hyperlink

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