MALICIOUS
186
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 pointing to disposable domains, indicating it is part of a link farm designed to distribute malicious content. The heuristic 'PDF_SEO_LINK_FARM' and 'PDF_SEO_DISPOSABLE_LINK_FARM' strongly suggest this malicious intent. The ClamAV detection and ML classifier further confirm its malicious nature, likely serving as a lure for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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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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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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://vilenefex.ru/123?utm_term=gran+turismo+5+prologue+trophy+guide PDF link annotation
- https://cdn.sqhk.co/mabisurud/6gfQWib/mogonudamixi.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4482863/normal_60120bf15154f.pdfIn PDF document text
- https://cdn.sqhk.co/guwezasov/ic0xnyA/virago.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4475379/normal_6041750c12ad0.pdfIn PDF document text
- https://xopusinad.weebly.com/uploads/1/3/1/4/131406491/6375309.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4380883/normal_5ffcc28149d53.pdfIn PDF document text
- https://cdn.sqhk.co/valujoper/d3Vmjib/dojodazonivopalobina.pdfIn PDF document text
- https://pisubemiduburor.weebly.com/uploads/1/3/1/3/131380627/kupevulejisix_ziwarap_zomokazowavawu_nurokalibebeduv.pdfIn PDF document text
- https://cdn.sqhk.co/firumefetev/jgcA0ia/rumble_on_stock_split.pdfIn PDF document text
- https://latapelubatute.weebly.com/uploads/1/3/5/9/135960370/4259999.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4464873/normal_5fff26126075c.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_8d73298fb7ef48299100b7dcb837b52b.pdf?index=trueIn PDF document text
- https://24a70dd4-b549-4b9e-9c0a-6eea45ab85ad.filesusr.com/ugd/ab0c63_d9634b24f6884abf98cf93258d28f7b7.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/xarojapi/bisemewosejesado.pdfIn PDF document text
- https://s3.amazonaws.com/zategafozasiru/koch_industries_annual_report_2016.pdfIn PDF document text
- https://s3.amazonaws.com/vabemavuputenif/lozujofe.pdfIn PDF document text
- https://6e7ef639-f89a-4701-86f9-710a836f1183.filesusr.com/ugd/12745a_5b69ba787db341378eabd816ea069647.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/laginekux/nedotajakunipedaxesavafeg.pdfIn PDF document text
- https://s3.amazonaws.com/rekawexuretowo/87715274617.pdfIn PDF document text
- https://s3.amazonaws.com/nodetuxapabara/nugefanoguzitowemapokufo.pdfIn PDF document text
- https://3b044092-e341-4c69-a8e2-52b14fc1865f.filesusr.com/ugd/370021_a0a4b005471d437e91a647ae2a59273f.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_off00010e59.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E59 | 5628 bytes |
SHA-256: 00fd473caa31d5dd0e711f2120f3d946e552f923d8386fbcdf54d082afcdd83f |
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font_01_sfnt_off00012158.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12158 | 11036 bytes |
SHA-256: fedeb9bfa173c1a2a7d9fabc0c401f613b45d28dd83c3e6d3032898fff7d1015 |
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