MALICIOUS
136
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF was flagged by ClamAV as a phishing trojan and heuristics indicate it contains a redirector link designed for phishing. The ML classifier also assigned a high probability of maliciousness. Although no scripts were explicitly extracted, the PDF structure and the presence of a redirector URL suggest an attempt to lead the user to a malicious site.
Machine Learning
- Nyx PDF Classifier malicious score 0.5959
Heuristics 5
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne 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://feedproxy.google.com/~r/sq/ugae/~3/WVKuihPcy9U/square?utm_term=how+to+build+a+furnace+in+terraria PDF link annotation
- https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60e7f7e5dbc52028c840a7fc/1625815013380/49969164190.pdfIn PDF document text
- https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60ec79af12c1416d2f19c5c1/1626110383996/3448421508.pdfIn PDF document text
- https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60e76a51a44c0067aae6241e/1625778769257/the_equalizer_2_online_stream.pdfIn PDF document text
- https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60e8faecdb8bb141bad7e1d0/1625881324226/pitizud.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f7a4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7A4 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010fb6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10FB6 | 17752 bytes |
SHA-256: d5f6951944def8bb63ee2257611d81033862e116116b2711f148c134061d3f50 |
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font_02_sfnt_off00013e6b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13E6B | 10616 bytes |
SHA-256: 6b85c08c07f4c979e98c3b38047f77765c1c976f27bee90244c66c782c6255ec |
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