Malicious Office (OOXML) — malware analysis report

Static analysis result for SHA-256 6f143de3f9804d36…

MALICIOUS

Office (OOXML)

7.7 KB Created: 2018-03-07 09:39:00 UTC Authoring application: Microsoft Office Word 12.0000
MD5: 32be32e9dc131319f8a1ad8fd73f20ac SHA-1: 24cde5ab891540cbaa8508c18afbdb8ec61341fa SHA-256: 6f143de3f9804d3639125604d124c8658f3a5d9959068baad1d48c9963e63987
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The sample exhibits characteristics of a downloader, specifically using remote template injection and external relationships to fetch content from 'http://xy2.eu/ecPX'. ClamAV identifies this as Doc.Downloader.Redline-9972754-0, suggesting it's designed to download and execute a second-stage payload. The document body is minimal and appears to be placeholder text.

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://xy2.eu/ecPX) — 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: http://xy2.eu/ecPX
  • 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://xy2.eu/ecPX
    • 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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