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

Static analysis result for SHA-256 054da1eba7673c76…

MALICIOUS

Office (OOXML) / .DOCX

11.5 KB Created: 2018-03-07 09:39:00 UTC Authoring application: Microsoft Office Word 15.0000
MD5: 1a65b4adc09e60f0c6445b2eb1343fe0 SHA-1: b27db4b7a77acb2d23c80b1cbae20a83d3106675 SHA-256: 054da1eba7673c76efaa31e6b1b5cd8ebea98ea62c36b3d32d61d64edab609af
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The sample utilizes OOXML remote template injection and external relationships to fetch content from a suspicious URL. ClamAV identifies the file as a downloader, suggesting it is designed to retrieve and execute a secondary payload. The presence of a remote template URL strongly indicates a malicious intent to compromise the user's system.

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://tescogroseryand1wsdayelectronicstorehome.duckdns.org/office/invoice_22114.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: http://tescogroseryand1wsdayelectronicstorehome.duckdns.org/office/invoice_22114.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
    • http://tescogroseryand1wsdayelectronicstorehome.duckdns.org/office/invoice_22114.doc

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