MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains a link farm with numerous external URLs, suggesting an attempt to direct users to malicious or phishing sites. The heuristic 'PDF_SEO_LINK_FARM' and 'PDF_SEO_DISPOSABLE_LINK_FARM' indicate a large number of links, with one pointing to 'https://vilenefex.ru/award?keyword=biogas+generator+pdf', which is likely a lure. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to 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/award?keyword=biogas+generator+pdf PDF link annotation
- http://vavawosasote.iblogger.org/bafg_antrag_erluterung_formblatt_3.pdfIn PDF document text
- https://cdn.sqhk.co/remigalakefo/jhfQgfs/nostalgia_meaning_in_english_urdu.pdfIn PDF document text
- https://motetokazifizi.weebly.com/uploads/1/3/4/8/134885494/vamumekusuju-kufelosofero-kinozu-bojelisivi.pdfIn PDF document text
- https://cdn.sqhk.co/suxujaba/hajgiCv/cabinet_vision_manual.pdfIn PDF document text
- https://vikilegopufuber.weebly.com/uploads/1/3/4/5/134588451/mulonafibalifu.pdfIn PDF document text
- https://cdn.sqhk.co/wumerelup/MKGnGih/lenovo_ideapad_330s_15._6_laptop.pdfIn PDF document text
- http://kadanijojabuf.mywebcommunity.org/15245490380.pdfIn PDF document text
- http://nulepunu.22web.org/23864463229.pdfIn PDF document text
- https://majemuxisirilud.weebly.com/uploads/1/3/4/7/134719568/kakulibiserirusil.pdfIn PDF document text
- https://cdn.sqhk.co/sonorizeluwi/fichchh/kiridashi_craft_pocket_knife.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://832c8a8d-f05d-46e3-9166-97d9de82ace4.filesusr.com/ugd/432509_1e8b2f86fdc3418caf60542d499645b8.pdf?index=trueIn PDF document text
- https://87c8fc71-818b-4167-bf0d-2ac3bc49ffd1.filesusr.com/ugd/f9d4cd_0dcdcfd0062a4902b10996f9ced6ace0.pdf?index=trueIn PDF document text
- http://sofapeferusoxud.epizy.com/tokyo_ghoul_season_3_episode_list.pdfIn PDF document text
- http://josesomesube.myartsonline.com/begin_the_beguine._partitura.pdfIn PDF document text
- https://5902ff30-e651-486c-ac37-3e8383bfa78f.filesusr.com/ugd/f35da0_17db712c6a8441f8a757ee309d2d2947.pdf?index=trueIn PDF document text
- https://7404da97-7fcf-4d5f-9d5f-3f8644e6773a.filesusr.com/ugd/35f767_81f03a29199947948f49a51a057a2f10.pdf?index=trueIn PDF document text
- https://7c50ec62-1ece-451b-b03c-4788199016cf.filesusr.com/ugd/635f3c_4d7b0775ed454c8bb722ba47e11f14b7.pdf?index=trueIn PDF document text
- https://2cc3dcad-61c1-4442-8662-ca5be7cd8672.filesusr.com/ugd/71b93f_06d4c30af85f4d4884a40da94044ee1e.pdf?index=trueIn PDF document text
- http://segoxegigo.epizy.com/lagu_alexandra_porat_jealous.pdfIn PDF document text
- https://d670dda7-df53-4ef1-8eda-d3256df28744.filesusr.com/ugd/dbbbec_d4f1035fb3924c62abd3bc05295e69a6.pdf?index=trueIn PDF document text
- https://5548a280-a194-4776-8019-0e256783c1fa.filesusr.com/ugd/f2c1dc_2bd5d34f3e4b4fcb84194a246394098f.pdf?index=trueIn PDF document text
- https://d21da297-2d1c-4020-882f-059d99c29dc9.filesusr.com/ugd/3724a2_ed8cb6dc062b4e319154d41e37732939.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_off0000f498.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF498 | 5224 bytes |
SHA-256: 0a2dd01baace387b3765a3b7d3a8fff5a478645f43a5a7b1704a8eed5ad42d07 |
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font_01_sfnt_off00010676.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10676 | 11220 bytes |
SHA-256: a3404ef9c12fe696f2cad82522228ee180bbdcf5790b6bd12e01267fc48f7cc1 |
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