MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF contains a large number of embedded links, many of which point to other PDF documents hosted on disposable domains or link farms. One critical heuristic identified a link to known malicious redirector infrastructure, suggesting a phishing or malware distribution attempt. 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://yafferge.ru/wix?keyword=aiag+spc+manual+2nd+edition+pdf In PDF document text
- http://fobativ.mywebcommunity.org/schwinn_ad6_airdyne_exercise_bike_manual.pdfIn PDF document text
- https://cdn.sqhk.co/vagekoxes/NeAhcjc/granny_pods_cost_uk.pdfIn PDF document text
- https://cdn.sqhk.co/livatunozasu/ahidOic/harvard_business_manager_abo_osterreich.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://8eefcaf3-52f5-4123-8be5-b1f0aaeea45e.filesusr.com/ugd/1d3654_8fcf6b3ec3884c6c8b5f0cbd5d993f89.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/13bf0950-19c0-4baf-a2ce-3291eccfa0b0/hp_6500_printer_cartridge_error_message.pdfIn PDF document text
- https://6200e599-3f2f-4e3e-ab45-e6977ed7e777.filesusr.com/ugd/f8de3e_c3abc7583a8e42b1a7c6ca60438bcefb.pdf?index=trueIn PDF document text
- https://c064424b-11a8-4e39-a524-24a74bcd733d.filesusr.com/ugd/54e393_42d8a1e83e9241fb8bdc035170bbcd9b.pdf?index=trueIn PDF document text
- https://e1318bff-d970-45e2-bcea-45481503a18b.filesusr.com/ugd/75a96d_d8af0c4adeba4926b2d8b6b582be31ee.pdf?index=trueIn PDF document text
- https://b2fc43c4-60ab-4dc1-a1c8-84833fda4e2a.filesusr.com/ugd/37321e_8f548d571e2a40328c85a4142f1ea3ec.pdf?index=trueIn PDF document text
- http://likutolejit.onlinewebshop.net/dopezuzor.pdfIn PDF document text
- https://3c2b787d-8465-4662-bdcc-bf736d584291.filesusr.com/ugd/8760e7_cafadca703b84d0fb389d66f046a18ca.pdf?index=trueIn PDF document text
- https://070488ba-e3d9-4c74-834b-445551f5513c.filesusr.com/ugd/fb83f1_17580141756b480982885fc36ade7984.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/ee060df9-d7a7-4070-aa4b-3a5733f5e810/navy_diving_suit_2020.pdfIn PDF document text
- https://ff0b3df2-dc61-4aeb-9024-93fa9b5bc175.filesusr.com/ugd/aa14a9_4d19f13757ed42e39a4b50c650b7a4db.pdf?index=trueIn PDF document text
- https://d5fd0048-bb8d-45a1-ba21-28d1cb0b7162.filesusr.com/ugd/5e8de6_1fc902785bff49eb8f1f569cebbc0d9a.pdf?index=trueIn PDF document text
- https://c335e157-9962-4e43-983a-f5fcf491c4e2.filesusr.com/ugd/a09b09_835aac1f709140ce9abaf2839cfbdb9a.pdf?index=trueIn 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_off0000c479.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC479 | 5500 bytes |
SHA-256: 03bc4d59e769ee08d9064d629d3e17f7c2e1501d1583ae65df6fd0b7e02af601 |
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font_01_sfnt_off0000d72e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD72E | 10612 bytes |
SHA-256: c8b1ddfebd4c31ca6597858ad4e66df48866dae0c0a2f597c63876aaa64a65fb |
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