MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was flagged by multiple heuristics as malicious, including a critical finding for linking to known malicious redirector infrastructure. It contains a large number of embedded links, many of which point to disposable domains and appear to be part of a link farm designed to distribute malicious content. The ML classifier also strongly indicated maliciousness.
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://crophysi.ru/123?utm_term=luciferin+reporter+assay In PDF document text
- http://bukanugizini.mygamesonline.org/criminal_law_uol.pdfIn PDF document text
- http://1xbets-reg.site/ferrel_g_stremler_introduction_to_communication_systemsi7s4a.pdfIn PDF document text
- http://theporte.xyz/9112514336ig4fi.pdfIn PDF document text
- http://eurostore.info/pete_the_cat_and_the_missing_cupcakes_guided_reading_levelqi2i2.pdfIn PDF document text
- http://lesantyqas.online/how_long_for_elimination_diet_to_workb9ghy.pdfIn PDF document text
- http://rentline.pro/cengagenow_accounting_answer_keyjzzmo.pdfIn PDF document text
- http://forsage.pw/4322088148782rve.pdfIn PDF document text
- http://vbruti.site/7764997288808et4.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://tosurok.myartsonline.com/matulobawijegudexem.pdfIn PDF document text
- https://c36efdde-2309-4ce2-a10d-b6df2ce12cd8.filesusr.com/ugd/e98059_8f08bde69d2a4919b1b7af61df3df21c.pdf?index=trueIn PDF document text
- https://254a6a59-343e-4b7e-907c-c4819e171fff.filesusr.com/ugd/decf6f_9a1fa1eb617b4cafbf46756e8903d124.pdf?index=trueIn PDF document text
- https://ec8c99fd-5413-4e38-b6a0-2ccbba71fc6f.filesusr.com/ugd/de02f3_c80bba4747f344e99d7d2f90325adaae.pdf?index=trueIn PDF document text
- https://45f0f727-c607-4398-b3b7-8b42e23b21b2.filesusr.com/ugd/0a84ca_c42571792c7549bbadca64d51046b82b.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/642b7c31-cb08-4b63-8cce-75dad87a1324/rinorotesupememufajeseku.pdfIn PDF document text
- https://17a6c5a8-0587-4adf-8126-5b439e15a62f.filesusr.com/ugd/54bec1_670b5e943b104cd9aa098070e2ab4360.pdf?index=trueIn PDF document text
- https://dacf5b84-f80e-4bd8-bb7f-22aad20a1cd8.filesusr.com/ugd/285be4_1bc603160b1544ceadf336869a877e2e.pdf?index=trueIn PDF document text
- https://a86a6b26-b473-4b55-b9aa-7628a2bff077.filesusr.com/ugd/4f270c_eccb5ae0f63a46968f3e07797bb302af.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/49676f98-1648-4356-a6a8-c1e3f48dbdfc/wefetegagafajikudulalog.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_off00013490.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13490 | 5020 bytes |
SHA-256: 9dd2d093ef3241aca04413a27b1b0dabc85514db6bcfafb2286269600b485b60 |
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font_01_sfnt_off000145c6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x145C6 | 12508 bytes |
SHA-256: 4c8ca7c03038aa742bfddb5cf4bb2d817abc03d8e3f35be98db8f4c85d252c29 |
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