MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains heuristics indicating it links to known malicious redirector infrastructure, specifically a URL designed to impersonate a free software download. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were extracted, the embedded URL is the primary indicator of a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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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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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://yafferge.ru/123?utm_term=spreadsheet+compare+2013+free In PDF document text
- https://static.s123-cdn-static.com/uploads/4407060/normal_5fddd838af2cb.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4421336/normal_6058f3b5afc43.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4491669/normal_6050e3156eeea.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4426816/normal_5fc9875e7ba5f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4389108/normal_600fa0eaccc44.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4469128/normal_602fc27a25ef6.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4409621/normal_6002b0c4375cb.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4412593/normal_5fcfe85212870.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4467273/normal_5ff9baee70b3f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4459926/normal_601b7f8fdbc5a.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/9e978351-04f9-4730-88ab-9e71fb6cc8a1/cuntos_ejes_de_simetra_tiene_un_trapecio_rectngulo.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c0967483-8edf-41c3-b2a6-8e1857f5ecd6/legefoziloniloge.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/31e234fa-4316-47f3-9a5e-c151c6f6c7e7/free_race_car_racing_game_unlimited_money.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3604c8c1-e4a1-464e-9af0-0869abe13cb1/the_curated_closet_book.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/50b953eb-1d9c-4d99-9ac8-12109dc08ee8/53102567405.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e8409e14-1c40-46bb-baa5-7184fc4206b4/59760934632.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7e93d69c-b6e5-4fdf-8f05-5445789bfa6c/lifudebotinajomijokibu.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5bbe9708-c0da-4e52-b37c-b28da35e829b/roadmaster_granite_peak_mens_mountain_bike_26_wheels_black.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c7a660d8-595f-475b-9599-8e01a1c6256d/firehouse_subs_menu_with_prices.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4ccc315b-1108-4f33-84ad-1ac541be985b/dazelajuwam.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f386447e-3a0d-41aa-9552-f44a1abd11be/xeponasez.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://scripts.sil.org/OFLIn 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_off0000ea0d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA0D | 5956 bytes |
SHA-256: b35f9d984e340776cedc9b15a2f0b84dec235e89f65efb85d808cd227c238467 |
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font_01_sfnt_off0000fe2f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE2F | 12096 bytes |
SHA-256: 99d664ae3d528d1a7cf9ee0887a9ae16c794a26a474e112dbaa7fb2e22616ccf |
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font_02_sfnt_off00012735.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12735 | 16204 bytes |
SHA-256: a95eff378c135b1ab40d10b3cd1da1bafbc07f86005f57898d079c90d712ddbd |
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