MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was flagged by multiple critical heuristics as malicious, including a redirector link and a large link farm. The ML classifier also strongly indicated maliciousness. The document body is heavily obfuscated, but the presence of numerous external links suggests a phishing or SEO manipulation scheme. No scripts were extracted, but the link farm itself is the primary attack vector.
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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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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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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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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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/award?keyword=almeida+prado+35+bula+pdf In PDF document text
- https://rikidunojig.weebly.com/uploads/1/3/4/4/134488605/1fef13cd8568ba.pdfIn PDF document text
- https://fezapatinegu.weebly.com/uploads/1/3/4/2/134266508/sowiv.pdfIn PDF document text
- http://molexepoleku.22web.org/udemy_python_for_data_science_and_machine_learning_bootcamp_git.ir.pdfIn PDF document text
- http://wixiziz.iblogger.org/13032508688.pdfIn PDF document text
- https://vuzabevewipa.weebly.com/uploads/1/3/6/0/136087677/tolukumuvadigisikaku.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/navoburarovada/sag_ultra_low_budget_rates.pdfIn PDF document text
- https://9d76d0c6-5807-43ac-a2ba-7b4112d1a20a.filesusr.com/ugd/5cd33b_7df4324d8781407e95edefc9fca6bce1.pdf?index=trueIn PDF document text
- https://11ca5eb4-0abe-4d5d-8073-3f36f6088e80.filesusr.com/ugd/8b62d8_05f2846faa124bf1906851f6ef22ce32.pdf?index=trueIn PDF document text
- https://72b50e20-f79f-40ca-96b4-24bef83e308f.filesusr.com/ugd/1a1092_2ea2693838fe47579f4a859b1c34f60a.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/lumixi/kotopazufomiraj.pdfIn PDF document text
- https://cb47f074-0476-4434-b381-5672a365cab8.filesusr.com/ugd/c46c8a_6b6f741af3234d0b81554ee32112bf4f.pdf?index=trueIn PDF document text
- https://11f44e1d-c86f-4be6-baa1-90970e7c24f5.filesusr.com/ugd/a298ce_89666c0d8f9e436da9e264571b041b17.pdf?index=trueIn PDF document text
- https://ede8a7a3-2377-4e09-926a-401222b31c25.filesusr.com/ugd/81c89d_b4aad38f4a0742f686ab42a65c2aaef4.pdf?index=trueIn PDF document text
- https://d115d978-d96a-40c8-9764-5d959708fc35.filesusr.com/ugd/436160_7f06e39a63c2444f984e544e443e2cf5.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/pobixedele/c3po_event_guide_no_wicket.pdfIn PDF document text
- http://rozibata.epizy.com/how_much_do_social_workers_get_paid_a_month.pdfIn PDF document text
- https://s3.amazonaws.com/farowug/bsa_medical_form_part_c.pdfIn PDF document text
- https://b73b9701-b1df-43be-b031-73419f87697c.filesusr.com/ugd/bfbd96_327c229d47c14cc289985bb8022e9b51.pdf?index=trueIn PDF document text
- http://sudezubedafa.epizy.com/fufavuvafujugagijusav.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f646.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF646 | 5428 bytes |
SHA-256: ebf788d7110bd7d854fcdb0705068332eec360aa76b7f39ee45b99827fe0b287 |
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font_01_sfnt_off000108a0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x108A0 | 13764 bytes |
SHA-256: 6ef8064cc134f5c6bdce28b8cf2ce32d2d1e6daf8d9df1bd9f77837176e5d374 |
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