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

Static analysis result for SHA-256 43b70d6f8bd360f7…

MALICIOUS

Office (OOXML) / .DOC

10.1 KB Created: 2018-03-07 09:39:00 UTC Authoring application: Microsoft Office Word 12.0000
MD5: 01efad1d21685954881771187b7c89a3 SHA-1: 27a25eb720a4463bc31ce42d344cb42e634c3ef8 SHA-256: 43b70d6f8bd360f7ad9bcb4f9f0bd70adbab27a733d27ec320168e1a127d8481
120 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File

The file exhibits critical heuristic firings for remote template injection and external relationships, both pointing to the URL http://will.kasraz.com/a/d.dot. This strongly suggests the document is designed to load external content, likely a malicious template, which in turn would download and execute a secondary payload. The ClamAV detection further supports this, identifying it 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://will.kasraz.com/a/d.dot) — 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://will.kasraz.com/a/d.dot
  • 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://will.kasraz.com/a/d.dot
    • 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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