MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs and is flagged as a link farm, with many pointing to compromised or disposable hosting. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware. The presence of a 'utm_term' parameter in one URL suggests an attempt to track user engagement with lures.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://huntic.ru/uplcv?utm_term=windows+8+pro+product+key+free PDF link annotation
- http://tahyuh.com/uploads/files/202109171903313694.pdfIn PDF document text
- https://daqing-jewelry.com/uploads/files/202109140632111566.pdfIn PDF document text
- http://www.garriagricola.com/wp-content/plugins/formcraft/file-upload/server/content/files/161345bfa93417---gebujonemupoloduwipazo.pdfIn PDF document text
- https://consultingexpert.eu/fckeditor/userfiles/file/45487814250.pdfIn PDF document text
- http://e-hematologica.com/users/file/34764855267.pdfIn PDF document text
- http://xinyuemu.net/assets/202109/files/20210908113512843472.pdfIn PDF document text
- http://www.village-gaulois.org/gestion/ckfinder/userfiles/files/70977328433.pdfIn PDF document text
- https://commonwealthsportsawards.com/userfiles/file/19189992651.pdfIn PDF document text
- https://taucaotoccatba.vn/images/news/files/68448976131.pdfIn PDF document text
- http://kfnmdg.com/upfolder/e/files/20210918023029.pdfIn PDF document text
- https://www.adcgrain.com/wp-content/plugins/super-forms/uploads/php/files/1451519031f0d0949aaaff8a57f3d8d3/lejenagamuloraxizut.pdfIn PDF document text
- https://gerbangkuis.com/contents/files/tapulalexiwujovuvupaju.pdfIn PDF document text
- https://koetec.com/home/~ptow/public_html/ckfinder/userfiles/files/58142082174.pdfIn PDF document text
- http://gzmzwl.com/Uploadfiles/files/fezupegabulina.pdfIn PDF document text
- http://slstudio.it/userfiles/files/66190757748.pdfIn PDF document text
- https://proff-doors.ru/wp-content/plugins/super-forms/uploads/php/files/7d133d81d9492cd4053a8d62c2a48c65/zejetasuv.pdfIn PDF document text
- https://gamedunyasi.com/calisma2/files/uploads/25298754862.pdfIn PDF document text
- http://aeskulap24h.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613dc432b6415---nalazopugurarago.pdfIn PDF document text
- https://cevhertemizlik.com/userfiles/files/43498200028.pdfIn PDF document text
- https://illustrations.noche.fr/images/files/30018366031.pdfIn PDF document text
- https://clearpatth.com/userfiles/file/26815877854.pdfIn PDF document text
- https://epgeptech.hu/ckfinder/userfiles/files/33232247698.pdfIn PDF document text
- http://cherriestattoo.com/ckfinder/userfiles/files/15538739950.pdfIn PDF document text
- https://www.sensiblemachines.com/ckfinder/core/connector/php/files/gekesijokipijijesofuzixan.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_off0000b572.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB572 | 10996 bytes |
SHA-256: b96c9a16037b1e164549eb735a532a63dadbf09f83f1d47b9c53cbb799095052 |
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font_01_sfnt_off0000cf38.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCF38 | 15420 bytes |
SHA-256: 46cb7c3df0186c61c4e7274e498fe64dcf1c584d88232a09032997b95ba018ce |
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font_02_sfnt_off0000f677.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF677 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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