MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous external URIs and link farms, many pointing to compromised WordPress sites, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of a malicious document designed to lure users to external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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://infrive.ru/uplcv?utm_term=gametogenesis+pdf+scielo PDF link annotation
- http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/ic9uvniqc6tc1pv0bhrsi94790/80262913097.pdfIn PDF document text
- https://oklogistic.lv/upload/file/34849328247.pdfIn PDF document text
- https://facade-metal.ch/ckfinder/userfiles/files/kifegamoj.pdfIn PDF document text
- https://producedepot.us/userfiles/files/88937432702.pdfIn PDF document text
- https://pcparts.fr/ckfinder/userfiles/files/titojiviloxojuvudo.pdfIn PDF document text
- https://mma-montessori.com/admin/ckfinder/userfiles/files/34219095051.pdfIn PDF document text
- http://drairtools.com/ckfinder/userfiles/files/62598973473.pdfIn PDF document text
- https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/v2kqd3sqn0tnsims5ukc8ltb77/voxiketo.pdfIn PDF document text
- https://vizzzio.ru/wp-content/plugins/super-forms/uploads/php/files/b367478f61dcb559efb1999cc56922e2/wivatebaxesamodi.pdfIn PDF document text
- https://rhdplumbing.com/wp-content/plugins/super-forms/uploads/php/files/fcb185dc0ae870d4b765ce9e4a227589/sovuximedafuvubotinev.pdfIn PDF document text
- https://sahyadrisevasanstha.in/userfiles/file/gujujirugivavisufemer.pdfIn PDF document text
- http://kowel.com/ckfinder/userfiles/files/1623684204.pdfIn PDF document text
- http://intelekt.biz/uploads/pages/files/4835743275.pdfIn PDF document text
- https://arnetbilgisayar.com/upload/ckfinder/files/worazuraluti.pdfIn PDF document text
- https://bringem.de/wp-content/plugins/super-forms/uploads/php/files/fe28135bb761b5464fa578b1ecd1aaa6/niwozirepudika.pdfIn PDF document text
- http://xn--90afqerdlt1f.xn--p1ai/admin/ckfinder/userfiles/files/jaziwabubelixip.pdfIn PDF document text
- http://tindangnhadat.vn/upload/files/51921374025.pdfIn PDF document text
- http://drive4smilesontario.ca/clients/e/ed/ed023a0734c265ca673a92d1d81de675/File/32601277137.pdfIn PDF document text
- https://perfecthospitals.com/ckfinder/userfiles/files/60817344587.pdfIn PDF document text
- http://discarga.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075e872ec8f9---94800092837.pdfIn PDF document text
- https://adikkeempat.com/contents/files/zifogalaxesenasitudufurav.pdfIn PDF document text
- https://atputasbazes.lv/images/userfiles/files/67107554791.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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b7f1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB7F1 | 10900 bytes |
SHA-256: c8a78080dc6e949d6ceee389fc6eda2f62c5c01595ebd2417f1ff65387a33fc3 |
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font_01_sfnt_off0000d0fe.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD0FE | 14928 bytes |
SHA-256: 3943167c6b3cb6462f49985955b5d78093819c4d51ebd6b2c7bf119f05523405 |
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font_02_sfnt_off0000f6e3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF6E3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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