Phishery — Office (OOXML) malware analysis

Static analysis result for SHA-256 42e58f6f3492b57e…

MALICIOUS

Office (OOXML)

10.1 KB Created: 2021-07-20 12:23:00 UTC Authoring application: Microsoft Office Word 16.0000
MD5: cdf2592ade2308346f780bdb74532b9c SHA-1: 28373c63067b68071a1aa5996b3e7aa9708f316e SHA-256: 42e58f6f3492b57e0ac82a62e42872660f73b672ccca104d5b89e0426e7d20ac
122 Risk Score

Malware Insights

Phishery · confidence 95%

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

The critical ClamAV heuristic identifies this file as Doc.Tool.Phishery-6331699-0, a known phishing tool. The OOXML_REMOTE_TEMPLATE and OOXML_EXTERNAL_REL heuristics indicate the document is configured to load external content from 'https://fireeyetest.xyz/a.dotm'. This strongly suggests the document is designed to trick the user into downloading and executing a malicious template, a common phishing tactic.

Heuristics 4

  • ClamAV: Doc.Tool.Phishery-6331699-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Tool.Phishery-6331699-0
  • Remote template injection high OOXML_REMOTE_TEMPLATE
    Document references a remote template URL (https://fireeyetest.xyz/a.dotm) — 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://fireeyetest.xyz/a.dotm
  • 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://fireeyetest.xyz/a.dotm
    • 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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