MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains a large number of external links, many of which are SEO-optimized and redirect to a phishing domain. The heuristic 'PDF_SEO_LINK_FARM' and 'PDF_SEO_UTM_REDIRECTOR_LINK' indicate a tactic to disguise malicious links as legitimate downloads. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 6
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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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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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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://bologen.ru/strik?utm_term=tusem+farmakoloji+konu+kitab%25C4%25B1+pdf PDF link annotation
- https://cdn-cms.f-static.net/uploads/4416139/normal_603be405228fe.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4469860/normal_6033fae363a0e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4485010/normal_602fd729a1eb6.pdfIn PDF document text
- https://rapironid.weebly.com/uploads/1/3/1/3/131398378/luvekebep.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4366389/normal_5ff65b772d005.pdfIn PDF document text
- https://sovajavab.weebly.com/uploads/1/3/4/0/134041947/4794137.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://s3.amazonaws.com/sajezife/what_lancets_go_with_contour_next_one_meter.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4cebd6a7-33cb-4ec9-a54c-dc99cbd1fe0f/dodge_caliber_emergency_lights.pdfIn PDF document text
- https://s3.amazonaws.com/sagotomagin/how_to_make_a_zen_garden_at_home.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9e31e2f1-2620-48a1-9a34-7e5fd70fabe0/43306994685.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a9a57926-9a06-40f5-af3b-ec36fb39fdb3/what_is_pyramid_training.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/49a1215d-3576-4ef6-9f88-50f63602b79c/sulono.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/fadc0249-92f7-4cf6-849e-9a621c338a25/how_to_tell_if_a_function_has_a_jump_discontinuity.pdfIn PDF document text
- https://s3.amazonaws.com/kegubinefuda/sikixigawebum.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7563e488-cff4-4024-a69c-8764ba469eff/a_series_of_unfortunate_events_2_movie.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a2e46d98-466e-464c-be11-bfcec908f580/call_of_cthulhu_7th_edition_quick_start_review.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/894e77d2-688e-49f1-accd-35b5d947743e/fiwepigosobomofoz.pdfIn PDF document text
- https://s3.amazonaws.com/dovulavavo/best_islamic_arabic_books.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f0b3d98e-fae9-4f43-92a9-c431c7e49fd1/alkaline_food_charts.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
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ca59.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA59 | 5328 bytes |
SHA-256: e77850e4cf3959d8c93c294c78930be553aa757c471883cba669de692169b047 |
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font_01_sfnt_off0000dc55.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC55 | 10836 bytes |
SHA-256: 7ddc84f96428e839696dbdbdc1bec4ff6f70368ece30f6a484485d9d3299c30f |
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font_02_sfnt_off0000ff1f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF1F | 4324 bytes |
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c |
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