MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a large number of external links, many pointing to disposable domains, suggesting a link farm used for SEO manipulation or to distribute further malicious content. The primary external URL observed is vilenefex.ru, which is likely part of a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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/wix?keyword=the+activity+series+of+metals+chemical+equations+worksheet PDF link annotation
- https://static.s123-cdn-static.com/uploads/4451375/normal_5fde375958366.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4424991/normal_602ff586060ed.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4420764/normal_5fe9b604ba4ff.pdfIn PDF document text
- https://bonawoxe.weebly.com/uploads/1/3/3/9/133986387/xajof.pdfIn PDF document text
- https://cdn.sqhk.co/fafujedajir/6ijgc15/airtime_loader_go_loadup_airtime.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4420260/normal_6042d0e09c065.pdfIn PDF document text
- https://cdn.sqhk.co/kapudome/fum4Jgj/12156331281.pdfIn PDF document text
- https://gijojipile.weebly.com/uploads/1/3/1/3/131381352/kutezisoganafupi.pdfIn PDF document text
- https://nivagevap.weebly.com/uploads/1/3/1/4/131438423/nunira-jevazep-tewelabozuga.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4408475/normal_601a077e90203.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4450731/normal_5fcf038ebc6a5.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365612/normal_6023a6e25582d.pdfIn PDF document text
- https://bididanigatozum.weebly.com/uploads/1/3/4/3/134314142/kevomabelo.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4500887/normal_5fecb3be29f63.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://6a24fdd2-d4a5-4c4b-882b-0f3115751bcf.filesusr.com/ugd/04e6f9_ebfb242ffa284539b5085d562f47a1b4.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/8ca20e06-0f7c-4180-bfdb-649dac92f623/25136517065.pdfIn PDF document text
- https://33edd578-4186-4695-89f3-f56a5a23fc53.filesusr.com/ugd/f17c08_2ea726f7400c48c8b0a55007b778bcd3.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/6637f03e-ce5e-4f6b-ac49-a68025242b11/55740252299.pdfIn PDF document text
- https://f59c0a4d-c104-43ac-8966-a5978cdf1b8c.filesusr.com/ugd/0c1ebd_ec27a126fc3d4077b0abf2c06364d535.pdf?index=trueIn PDF document text
- https://9cf5cc10-3c2e-4e30-ae6b-73ed7beed88a.filesusr.com/ugd/5c2b46_f18d72e238554c8f939a691296a3eb62.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_off0000fec9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFEC9 | 5512 bytes |
SHA-256: 7a588a09c156fc52f158de52b8f7bfed8ebcd4bc309f93784e6b75cd949cf519 |
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font_01_sfnt_off0001117f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1117F | 11792 bytes |
SHA-256: c31596ec0f9750235f4c4aa2419c7efa027870c046db35840ca7b4523dcd67be |
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