MALICIOUS
76
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains an embedded URI pointing to a Google Feedproxy URL, which in turn redirects to a Squarespace domain. While the URLs themselves are confirmed benign, the presence of an external link within a PDF, coupled with a high ML classifier score, suggests a potential phishing or credential harvesting attempt. No scripts were extracted, and the document body was unreadable, limiting further analysis of the specific lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.7604
Heuristics 4
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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/razvivatel/yapz/~3/UkUWPC8UKDU/square?utm_term=application+of+enzymes+in+medicine+pdf PDF link annotation
- https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60ec76f45978cb5ccaa9876b/1626109684822/xivowelu.pdfIn PDF document text
- https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60f17ab7d1d8e65aae8a0d9a/1626438327907/40759794781.pdfIn PDF document text
- https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60ec9122f83a7f26ecd1a500/1626116386491/reactive_forms_example_angular_8.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_off0000d2ce.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD2CE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000eae5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEAE5 | 10836 bytes |
SHA-256: 5009ce8d3885dcb7729ee8cc21a920d742b5590ed752676d03746593455ac076 |
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font_02_sfnt_off00010409.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10409 | 15524 bytes |
SHA-256: caa52c08713a5cf1b8f662b7fabf6fbf7d29c935cd8d159d1235476b429d2ab9 |
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