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

Static analysis result for SHA-256 fe535f017f1e9807…

MALICIOUS

Office (OOXML) / .DOC

10.1 KB Created: 2018-03-07 09:39:00 UTC Authoring application: Microsoft Office Word 12.0000 First seen: 2022-09-21
MD5: b41225fb45bc78c549f6cc55b7c1ad3a SHA-1: 18b8f4e1919cf9125b78a9d4da7652bf49660adc SHA-256: fe535f017f1e9807d399cf11e46c65d7fed2dba8f71f1237517fb2921b1db459
142 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File

The sample exhibits critical heuristic firings for remote template injection and external relationships, both pointing to the URL http://1806450061/...----------------------.................-----------------------......-------/...........400.doc. This strongly suggests the document is designed to download and execute a secondary payload from this location. ClamAV detection as Doc.Downloader.Redline-9972754-0 further supports its role as a downloader.

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://1806450061/...----------------------.................-----------------------......-------/...........400.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://1806450061/...----------------------.................-----------------------......-------/...........400.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://1806450061/...----------------------.................-----------------------......-------/...........400.doc
    • 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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