MALICIOUS
136
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ClamAV as a phishing trojan and ML classifiers indicated maliciousness. A heuristic identified an image lure linking to an SEO redirector, which is a common phishing tactic. The embedded URL points to a Google Feedproxy, which in turn redirects to a Squarespace hosted PDF, suggesting a multi-stage redirection to a phishing site.
Machine Learning
- Nyx PDF Classifier malicious score 0.7390
Heuristics 5
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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/iYdez4bKglI/square?utm_term=meaning+of+the+word+truncated PDF link annotation
- https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60edf681d6548a387fd5a372/1626207873959/14979643789.pdfIn PDF document text
- https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60e93d0e92abcc18c4f708db/1625898254368/76562866406.pdfIn PDF document text
- https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60e7bc317d3b385c94b418af/1625799729231/97665926716.pdfIn PDF document text
- https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60eda5e05dd1eb1c29077f75/1626187232966/international_context_meaning.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_off0000d02f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD02F | 10720 bytes |
SHA-256: b512150b31d875d688af6451677d6200f519d210aede1bc6f23c8b69f6d4971d |
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font_01_sfnt_off0000e89a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE89A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000100ac.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100AC | 16732 bytes |
SHA-256: 16980c18bf6113b41b842f150129ab5daf117acf3d55e31b931847c31bea2036 |
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