MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains a large number of embedded links, many of which point to other PDFs hosted on various domains, suggesting a link farm or SEO poisoning tactic. One of the primary links directs to a known malicious redirector, indicating a phishing or malware distribution attempt. The ClamAV detection and ML classifier further support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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://dafemum.ru/strik?utm_term=play+the+game+of+life+online+with+friends In PDF document text
- http://mozeponava.iblogger.org/yardsticks_child_and_adolescent_development.pdfIn PDF document text
- https://cdn.sqhk.co/rekubapapup/IKjdSLH/74606180052.pdfIn PDF document text
- http://kvrovk.xyz/20392260136epymh.pdfIn PDF document text
- http://obzorov.site/favesuxofivadupoxutetdwxe.pdfIn PDF document text
- http://guwejusu.22web.org/domavojiz.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4448094/normal_605ef48eb1fa6.pdfIn PDF document text
- https://cdn.sqhk.co/zokonerozo/aBghHtr/damovejopedadifano.pdfIn PDF document text
- http://reduslimitalia-official.site/20134087332ppe7z.pdfIn PDF document text
- http://gogadozuxigode.iblogger.org/abs_anti_lock_braking_system.pdfIn PDF document text
- https://cdn.sqhk.co/winogolelog/ahj3DRX/underground_wallpapers_xans_frisk_and_asriel_fanfiction.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4366633/normal_5fcf493c7bb1e.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/e0273c55-ae15-4644-93e2-d866b3d6e89e/80771003607.pdfIn PDF document text
- https://3ced707c-20bd-49bb-93f1-edb15be4e391.filesusr.com/ugd/e90305_60a8712dafe74e0caefe56ee4806b19d.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/d2f7a9b2-b73e-44ce-981d-d6ac68bd8b3f/is_premier_protein_good_for_building_muscle.pdfIn PDF document text
- https://601bead5-a720-4f65-98db-62fe2a42cb91.filesusr.com/ugd/0e52b4_7ea9e3d631104de386c17e0c8cdf7a81.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/d2ee9c40-741a-438c-9502-e9c154f247ed/how_to_connect_bluetooth_to_mini_cooper_2010.pdfIn PDF document text
- http://kukadafimi.rf.gd/tukugotikepi.pdfIn PDF document text
- http://melaworogafema.epizy.com/vce_philosophy_textbook.pdfIn PDF document text
- https://37e79482-e567-4eff-b449-6ea9b90d4679.filesusr.com/ugd/cff0cd_8ed8ebea7b8145e6a8ca91eb24487d51.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/1b49dd3b-6804-425d-b4ad-755bd7aa49c7/dell_latitude_e6410_ram_upgrade_16gb.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/21c0a129-df3a-4a88-9dd8-fdf56f16f1d6/1997_4.3_mercruiser_specs.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_off0000e95e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE95E | 5516 bytes |
SHA-256: 4b203f23f0e67cf8f4d0df1d59ad9e98ef7685e73e94fd5b1e5d13d1980b63e0 |
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font_01_sfnt_off0000fc0e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC0E | 10528 bytes |
SHA-256: e4b270368ccc47126a2dab80ad4c0edb76a20f8bed22b5227094ad8f375acd88 |
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