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

Static analysis result for SHA-256 da738fd264ce783b…

MALICIOUS

Office (OOXML) / .DOC

10.1 KB Created: 2018-03-07 09:39:00 UTC Authoring application: Microsoft Office Word 12.0000
MD5: ef086d7ff851087192da4875633309a4 SHA-1: 09f14e9ae202cd3125f5357db7aabcde61ada7f8 SHA-256: da738fd264ce783b168d1085f9cb95550f46a5eb3f103cf982e01dbe9bb565f8
120 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File

The sample exhibits characteristics of a downloader, specifically OOXML_REMOTE_TEMPLATE and OOXML_EXTERNAL_REL heuristics, indicating an attempt to fetch external content. The ClamAV detection as Doc.Downloader.Redline suggests it's designed to download and execute a secondary payload. The embedded URL, though marked as benign in this analysis, is the likely vector for the payload delivery.

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://cutt.ly/NbcoPrl) — 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://cutt.ly/NbcoPrl
  • 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://cutt.ly/NbcoPrl
    • 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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