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

Static analysis result for SHA-256 88d31eb758fd8fba…

MALICIOUS

Office (OOXML) / .OLE

11.4 KB Created: 2018-03-07 09:39:00 UTC Authoring application: Microsoft Office Word 15.0000
MD5: 7c9fdaaa9550736a260244d552244eca SHA-1: 4f8657c81d6f89ad5786372597f025e9ce2cf8f5 SHA-256: 88d31eb758fd8fba62990a953f2fa4c7acd1b3dcdbb0002c66340ee22d4677a5
120 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File

The file exhibits critical heuristic firings for ClamAV detection as 'Doc.Downloader.Redline-9972754-0', indicating it functions as a downloader. The 'OOXML_REMOTE_TEMPLATE' and 'OOXML_EXTERNAL_REL' heuristics strongly suggest the document is designed to pull content from an external source, likely to execute a secondary payload. The embedded URL 'https://syr.us/gPn' is the most probable source for this payload. No scripts were extracted, but the heuristics point to a downloader pattern.

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://syr.us/gPn) — 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://syr.us/gPn
  • 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://schemas.microsoft.com/office/word/2010/wordprocessingCanvas
    • 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/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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