MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a large number of external links, suggesting it's part of a link farm, potentially for SEO manipulation or to distribute further malicious content. The presence of multiple external URIs and the PDF_SEO_LINK_FARM heuristic strongly support this conclusion.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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://botokaw.ru/wix?keyword=biozone+international+worksheet+answers+2012 PDF link annotation
- https://static.s123-cdn-static.com/uploads/4447877/normal_5ff26e8c69782.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4416789/normal_604ad9418c178.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4421354/normal_60514d3ab026b.pdfIn PDF document text
- http://kipeliri.22web.org/verbo_haber_conjugacion.pdfIn PDF document text
- http://ziposodepow.mywebcommunity.org/borax_crystal_lab.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4384821/normal_603fdea2aa81b.pdfIn PDF document text
- http://toluvubub.mygamesonline.org/pinezakovejojavimafurobub.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4367631/normal_604425e71960c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4390385/normal_60114c434352e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4389084/normal_60499f3113ffa.pdfIn PDF document text
- http://mirumumavetifun.mypressonline.com/what_is_a_custodian_of_records_affidavit.pdfIn PDF document text
- http://xojanefod.mygamesonline.org/darotutevofutuvevilemi.pdfIn PDF document text
- http://ribugiwegi.22web.org/68015811057.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4378852/normal_5fd8698a3772b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4476445/normal_5fdb5f786e1db.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/883f3501-188a-4d53-bb01-d0c050753341/fupajuzuxemena.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3c7aa948-dd47-4405-ae49-188e09d2a3e8/12472225534.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/248c37f7-45a6-4262-95a6-a9fd30f37c8d/sylvia_day_crossfire_series_synopsis.pdfIn PDF document text
- https://d497f082-4895-42de-a72c-038d9367c8a3.filesusr.com/ugd/8e727b_e9fb606a2c6c468a86907f9533e2edb3.pdf?index=trueIn PDF document text
- http://rugiselawanoli.rf.gd/phylum_anelidos.pdfIn PDF document text
- https://2a4065d7-883d-43e8-a524-7ce9aa4b4e88.filesusr.com/ugd/ccb1c6_70bccf5416324f7ca5c9131ce66181bd.pdf?index=trueIn PDF document text
- https://b3a1a1c9-4f8f-4fb8-b7cc-7339030cc889.filesusr.com/ugd/162fe6_cdd1d915f50b452cb66221121e00a897.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_off0000d094.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD094 | 5352 bytes |
SHA-256: 38fd2bc18638b0230060992ff5b2e4fb738777a8c5aecec2b166a43287af1078 |
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font_01_sfnt_off0000e2e0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE2E0 | 10596 bytes |
SHA-256: 4a9b28f38482d65faebf242b22de01cbf1ba10dfc5c8e7f16b84f80018440d99 |
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