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

Static analysis result for SHA-256 1375d8021159ba2f…

MALICIOUS

Office (OOXML) / .DOC

210.0 KB Created: 2021-03-24 08:48:00 UTC Authoring application: Microsoft Office Word 16.0000
MD5: b2193f0fb8b5ee8b2fe161cde30f4d65 SHA-1: abdb1871d3234ca91007b9e5eb6101095abaa140 SHA-256: 1375d8021159ba2f4e6cda50f88db70871c98461ed63a5ccb43953cd04124069
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file exhibits critical heuristic firings indicating remote template injection and external relationship usage, pointing to the URL http://lovers.semara.ru/DCH00-01/bewildered/gnaw/bewildered/glue/prime/gnaw/bewildered/gloves/gnaw/prime/gloves.dot. This suggests the document is designed to download and utilize a remote template, a common technique for delivering malware. The ClamAV detection as Doc.Downloader.Gamaredon-9966166-1 further supports its malicious nature as a downloader.

Heuristics 4

  • 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://lovers.semara.ru/DCH00-01/bewildered/gnaw/bewildered/glue/prime/gnaw/bewildered/gloves/gnaw/prime/gloves.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://lovers.semara.ru/DCH00-01/bewildered/gnaw/bewildered/glue/prime/gnaw/bewildered/gloves/gnaw/prime/gloves.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 http://lovers.semara.ru/DCH00-01/bewildered/gnaw/bewildered/glue/prime/gnaw/bewildered/gloves/gnaw/prime/gloves.dot
    • http://schemas.microsoft.com/office/word/2010/wordprocessingCanvas
    • http://schemas.microsoft.com/office/drawing/2014/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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