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

Static analysis result for SHA-256 083edef1f49a69af…

MALICIOUS

Office (OOXML) / .DOC

11.5 KB Created: 2018-03-07 09:39:00 UTC Authoring application: Microsoft Office Word 15.0000
MD5: 84a55fecc59867e1acb3e86c813a0d0b SHA-1: 1f9f06f49baea7e2344b2f51302e2755121f9ba7 SHA-256: 083edef1f49a69afa91976ee08e224d821a1a602433629a137b52b4019e1b194
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The sample exhibits critical heuristic firings for remote template injection and external relationships, pointing to a malicious external document. ClamAV detection as Doc.Downloader.Redline-9972754-0 further confirms its malicious nature. The embedded URL is highly suspicious and likely serves as the source for a second-stage payload.

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://poiuytrewqasdfghjklmnbvcxzqwertyuioplkjh.ydns.eu/akin.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://poiuytrewqasdfghjklmnbvcxzqwertyuioplkjh.ydns.eu/akin.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://poiuytrewqasdfghjklmnbvcxzqwertyuioplkjh.ydns.eu/akin.doc

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