Malicious Office (OOXML) — malware analysis report

Static analysis result for SHA-256 8e62450fb766f0ce…

MALICIOUS

Office (OOXML)

10.1 KB Created: 2018-03-07 09:39:00 UTC Authoring application: Microsoft Office Word 12.0000 First seen: 2021-06-28
MD5: df55074a5f0dba2b6f7b2ed4bd0601da SHA-1: 017070ff75fcb217aa19ea0c8b198652945ce38f SHA-256: 8e62450fb766f0cebe41c3492b79151a8ecdccdd491bf4c32cc4691948a0d020
122 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious File T1566.001 Spearphishing Attachment

The sample exhibits critical heuristics for remote template injection and external relationships, indicating an attempt to load external content. The ClamAV detection as 'Doc.Downloader.Redline-9972754-0' strongly suggests a downloader functionality. The embedded URL points to a potential payload source, likely intended for execution after being downloaded.

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://dummy_username@0147.0205.0152.0110/-................................................................-/--------------------...........) — 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://dummy_username@0147.0205.0152.0110/-................................................................-/-----------
  • 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://dummy_username@0147.0205.0152.0110/-................................................................-/-------------------- Remote template reference
    • http://dummy_username@0147.0205.0152.0110/-................................................................-/--------------------.....................------------------.wbkRemote template reference
    • http://dummy_username@0147.0205.0152.0110/-................................................................-/-----------Remote template reference
    • http://schemas.openxmlformats.org/markup-compatibility/2006In document text (OOXML body / shared strings)
    • http://schemas.openxmlformats.org/officeDocument/2006/relationshipsIn document text (OOXML body / shared strings)
    • http://schemas.openxmlformats.org/officeDocument/2006/mathIn document text (OOXML body / shared strings)
    • http://schemas.openxmlformats.org/drawingml/2006/wordprocessingDrawingIn document text (OOXML body / shared strings)
    • http://schemas.openxmlformats.org/wordprocessingml/2006/mainIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/word/2006/wordmlIn document text (OOXML body / shared strings)

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