Malicious Office (OOXML) — malware analysis report

Static analysis result for SHA-256 9e69c735cd0faae0…

MALICIOUS

Office (OOXML)

10.1 KB Created: 2018-03-07 09:39:00 UTC Authoring application: Microsoft Office Word 12.0000
MD5: 508a2e0b0e78e5015b7e50fa3cc0a0a6 SHA-1: 595fb4746fa70f6e6884da120480dd35ad6a5086 SHA-256: 9e69c735cd0faae0898cde68938bcf6ae73c8879d9d2c7d52d092ad143754439
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file exhibits critical heuristics for remote template injection and external relationships, pointing to the URL https://hiokurl.com/vLOX9. This strongly suggests the document is designed to fetch and execute a malicious payload from this external source. The ClamAV detection as 'Doc.Downloader.Redline-9972754-0' further confirms its downloader capabilities, likely used in a spearphishing attachment attack.

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 (https://hiokurl.com/vLOX9) — 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: https://hiokurl.com/vLOX9
  • 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 https://hiokurl.com/vLOX9
    • 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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