MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file identified as malicious by ML classifiers and ClamAV. It contains numerous embedded URLs, many of which point to compromised WordPress sites or disposable hosting, suggesting a link farm or phishing lure. The presence of external URI heuristics and the ML_NYX_PDF_MALICIOUS firing strongly indicate malicious intent. No scripts were extracted, but the overall structure and URL distribution point towards a phishing or SEO manipulation attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9905
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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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://queure.ru/uplcv?utm_term=canelo+vs+saunders+date+and+time PDF link annotation
- https://cet.sk/res/file/4539886000.pdfIn PDF document text
- http://www.tecnotrefg.it/wp-content/plugins/formcraft/file-upload/server/content/files/16132381a4b8f8---44906225001.pdfIn PDF document text
- http://stoka-saarlouis.de/userfiles/file/28815462179.pdfIn PDF document text
- http://rasciindia.com/firetech/ckupload/files/59299031921.pdfIn PDF document text
- http://boatmonies.com/uploads/files/59137619606.pdfIn PDF document text
- http://xn--jt2b56wn0ap2a.com/upload/file/202109072033506843.pdfIn PDF document text
- http://centronegozi.com/public/98718750133.pdfIn PDF document text
- http://zimmerei-possert.at/1294581874.pdfIn PDF document text
- https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/f1damis5cbpul193jv4votkm7e/faritazelugo.pdfIn PDF document text
- http://mtsskzy.com/userfiles/file/memofedepid.pdfIn PDF document text
- https://nepalmicrofinancesummit.org/userfiles/files/mujezazu.pdfIn PDF document text
- http://makesomenoise.hu/upload/file/wulilunemafevalelovari.pdfIn PDF document text
- http://www.insurancedirectcanada.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16146cb731d664---jusepavodoxep.pdfIn PDF document text
- http://at2apigroup3.com/contents/files/83536687386.pdfIn PDF document text
- http://walosports.cl/userfiles/file/togisilopaxotizosomewi.pdfIn PDF document text
- https://hmjrgoldhockey.org/wp-content/plugins/super-forms/uploads/php/files/4e57c0778285191049ce2761a53406e1/81670793.pdfIn PDF document text
- http://minisadik-margaritka.ru/admin/ckfinder/userfiles/files/rudumig.pdfIn PDF document text
- https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/2e94f848f8d73615fe3d574cb3049b19/dewesibi.pdfIn PDF document text
- http://edmo-cars.nl/images/file/zobujekagaruda.pdfIn PDF document text
- http://modernplating.com/userfiles/file/93243285119.pdfIn PDF document text
- http://tsg-edinstvo.ru/userfiles/file/libubesajinap.pdfIn PDF document text
- http://chamdure.com/DATA/files/71460150504.pdfIn PDF document text
- http://www.chatanakonci.cz/userfiles/file/dorojebegafu.pdfIn PDF document text
- https://damiel.eu/userfiles/file/70911189086.pdfIn PDF document text
- http://www.rebranded.tv/wp-content/plugins/formcraft/file-upload/server/content/files/1613ed0874ad08---2820430725.pdfIn PDF document text
- http://penzionnakrizankach.cz/ckfinder/userfiles/files/megagopavawunafoko.pdfIn PDF document text
- https://dwitunggaljaya.com/sitefiles/file/86201070282.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_off0000e9e2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE9E2 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off000101f9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101F9 | 10608 bytes |
SHA-256: 4ae2825aa9223afd6e3cdda83d28546e9a5bbf1a26ccafadd49593cb6fa4d065 |
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font_02_sfnt_off00011a38.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A38 | 18920 bytes |
SHA-256: 23631c57b6f151e6b5676cdd4201b53e01e41772a1a16c642af0faf7be6c0468 |
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