Malicious Office (OOXML) — malware analysis report

Static analysis result for SHA-256 09c9bf9a41d24da9…

MALICIOUS

Office (OOXML)

44.0 KB Created: 2020-02-25 05:41:00 UTC Authoring application: Microsoft Office Word 15.0000
MD5: e088069556c7f7db1881b9a9ba2a19ea SHA-1: db444327a2ad181a641571949c8cec24ed3665d1 SHA-256: 09c9bf9a41d24da991f25c6da9a17d52c56c0cb90633eb7176f2a76ac15cae25
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV with the signature Doc.Downloader.Gamaredon-9966166-1, indicating it's a downloader. It uses external hyperlinks and a remote template injection pointing to 'http://usa-national.info/GPU/senior/self.dot', suggesting it's designed to download and execute a secondary payload. The document body mimics an official legal notice to encourage user interaction.

Heuristics 5

  • ClamAV: Doc.Downloader.Gamaredon-9966166-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Gamaredon-9966166-1
  • Remote template injection high OOXML_REMOTE_TEMPLATE
    Document references a remote template URL (http://usa-national.info/GPU/senior/self.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: http://usa-national.info/GPU/senior/self.dot
  • External hyperlinks (3) low OOXML_EXTERNAL_HYPERLINKS
    Document contains 3 external hyperlinks — clickable URLs are stored as external relationships. First target: https://zakon.rada.gov.ua/laws/show/4651-17
  • 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://zakon.rada.gov.ua/laws/show/4651-17
    • http://usa-national.info/GPU/senior/self.dot
    • 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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