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

Static analysis result for SHA-256 9a7c7311aa2794a8…

MALICIOUS

Office (OOXML) / .DOC

10.1 KB Created: 2018-03-07 09:39:00 UTC Authoring application: Microsoft Office Word 12.0000
MD5: 2a252a8ab73abfa2f26f1f8c2d7f1dee SHA-1: aeebb4fb66dc1afcf78a300af896aa670de1408a SHA-256: 9a7c7311aa2794a859892ccef7b5ffeaec897b41dcd48ad9da6b28404f3068f7
120 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File

The sample is a malicious OOXML document that utilizes remote template injection. The heuristic 'OOXML_REMOTE_TEMPLATE' indicates that the document is configured to load external content from a URL, which is a common technique for delivering malware. The ClamAV detection name 'Doc.Downloader.Redline-9972754-0' further suggests a downloader functionality. The presence of a short URL, though marked as confirmed benign in this instance, is often used to obscure the final payload destination.

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://is.gd/4noF0F) — 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/webSettings.xml.rels: https://is.gd/4noF0F
  • 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://is.gd/4noF0F
    • 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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