Malicious Office (OOXML) — malware analysis report

Static analysis result for SHA-256 8de4eb52db0ce19d…

MALICIOUS

Office (OOXML)

1.19 MB Created: 2020-05-07 06:45:00 UTC Authoring application: Microsoft Office Word 16.0000 First seen: 2020-09-15
MD5: de991e1dc8de2510127dcf9919f58d8a SHA-1: 82b852746bdfa0823b54abd226994e360c8e8f8c SHA-256: 8de4eb52db0ce19d295dd7f1c6e89522d1a09fa26709c058327701b4c436349f
162 Risk Score

Malware Insights

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

The file exhibits high-severity heuristics for remote template injection and external relationships, both pointing to the URL https://www.fabianiarte.com/uploads/docs/bae_defqa_logo.jpg. Additionally, a critical ClamAV detection indicates known malware. The presence of a 'Password-protected archive handoff' heuristic suggests the document's purpose is to trick the user into decrypting a payload, likely delivered via the remote template.

Heuristics 5

  • ClamAV: Win.Malware.Agent-9377864-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Win.Malware.Agent-9377864-0
  • Remote template injection high OOXML_REMOTE_TEMPLATE
    Document references a remote template URL (https://www.fabianiarte.com/uploads/docs/bae_defqa_logo.jpg) — 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • External relationship medium OOXML_EXTERNAL_REL
    External target in word/_rels/settings.xml.rels: https://www.fabianiarte.com/uploads/docs/bae_defqa_logo.jpg
  • 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://www.fabianiarte.com/uploads/docs/bae_defqa_logo.jpg Remote template reference
    • http://schemas.microsoft.com/office/word/2010/wordprocessingCanvasIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/drawing/2014/chartexIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/drawing/2015/9/8/chartexIn document text (OOXML body / shared strings)
    • http://schemas.openxmlformats.org/markup-compatibility/2006In document text (OOXML body / shared strings)
    • http://schemas.openxmlformats.org/officeDocument/2006/relationshipsIn document text (OOXML body / shared strings)
    • http://schemas.openxmlformats.org/officeDocument/2006/mathIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/word/2010/wordprocessingDrawingIn document text (OOXML body / shared strings)
    • http://schemas.openxmlformats.org/drawingml/2006/wordprocessingDrawingIn document text (OOXML body / shared strings)
    • http://schemas.openxmlformats.org/wordprocessingml/2006/mainIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/word/2010/wordmlIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/word/2012/wordmlIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/word/2015/wordml/symexIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/word/2010/wordprocessingGroupIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/word/2010/wordprocessingInkIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/word/2006/wordmlIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/word/2010/wordprocessingShapeIn document text (OOXML body / shared strings)

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