Malicious Office (OOXML) — malware analysis report

Static analysis result for SHA-256 849a7b999848b4f4…

MALICIOUS

Office (OOXML)

16.2 KB Created: 2021-06-16 06:49:00 UTC Authoring application: Microsoft Office Word 16.0000
MD5: 199378408cead6a943191d6b78bf6136 SHA-1: 544cfbb293c5cc878157144857467ea0564085c3 SHA-256: 849a7b999848b4f419fdfdb638a9045e199fea7ffca210775c99ec8407676e00
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious File

The OOXML document was identified as malicious due to the presence of a remote template injection. The heuristic firings indicate that the document is attempting to load external content from the URL 'https://cloud.mav-kdv-rmk.de/nextcloud/remote.php/dav/files/t.scheppat/MAV/Tagesordnung der MAV.dot', disguised as a meeting agenda. This technique is commonly used to deliver malicious payloads.

Heuristics 3

  • Remote template injection high OOXML_REMOTE_TEMPLATE
    Document references a remote template URL (https://cloud.mav-kdv-rmk.de/nextcloud/remote.php/dav/files/t.scheppat/MAV/Tagesordnung der MAV.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/settings.xml.rels: https://cloud.mav-kdv-rmk.de/nextcloud/remote.php/dav/files/t.scheppat/MAV/Tagesordnung der MAV.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 https://cloud.mav-kdv-rmk.de/nextcloud/remote.php/dav/files/t.scheppat/MAV/Tagesordnung
    • http://schemas.microsoft.com/office/word/2010/wordprocessingCanvas
    • http://schemas.microsoft.com/office/drawing/2014/chartex
    • http://schemas.microsoft.com/office/drawing/2015/9/8/chartex
    • http://schemas.openxmlformats.org/markup-compatibility/2006
    • http://schemas.openxmlformats.org/officeDocument/2006/relationships
    • http://schemas.openxmlformats.org/officeDocument/2006/math
    • http://schemas.microsoft.com/office/word/2010/wordprocessingDrawing
    • http://schemas.openxmlformats.org/drawingml/2006/wordprocessingDrawing
    • http://schemas.openxmlformats.org/wordprocessingml/2006/main
    • http://schemas.microsoft.com/office/word/2010/wordml
    • http://schemas.microsoft.com/office/word/2012/wordml
    • http://schemas.microsoft.com/office/word/2015/wordml/symex
    • http://schemas.microsoft.com/office/word/2010/wordprocessingGroup
    • http://schemas.microsoft.com/office/word/2010/wordprocessingInk
    • http://schemas.microsoft.com/office/word/2006/wordml
    • http://schemas.microsoft.com/office/word/2010/wordprocessingShape

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