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

Static analysis result for SHA-256 d5ef9a5ee8c65d34…

MALICIOUS

Office (OOXML) / .DOC

10.1 KB Created: 2018-03-07 09:39:00 UTC Authoring application: Microsoft Office Word 12.0000 First seen: 2022-08-18
MD5: 8fc07b49aa833710ba49edd2307acaa9 SHA-1: 7f5111e4ede5dee09e90379f799d20c11c78aa9f SHA-256: d5ef9a5ee8c65d347913d486d32d17682c22414f50dd46dadca71add23d98046
122 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious File

The sample utilizes OOXML remote template injection and external relationships to fetch content from a suspicious URL. ClamAV detection as Doc.Downloader.Redline-9972754-0 indicates it functions as a downloader. The embedded URL is likely used to retrieve and execute 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://392133210/.-------.--.----------.--------------------.................--------/dDd_-----------D----------........d-----....dD--..----) — 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://392133210/.-------.--.----------.--------------------.................--------/dDd_-----------D----------........
  • 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://392133210/.-------.--.----------.--------------------.................--------/dDd_-----------D----------........d-----....dD--..----
    • http://392133210/.-------.--.----------.--------------------.................--------/dDd_-----------D----------........d-----....dD--..-------....D-dDd--..-----.dothtml
    • http://392133210/.-------.--.----------.--------------------.................--------/dDd_-----------D----------
    • 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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