MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs pointing to various domains, many of which appear to be compromised WordPress sites or disposable hosting. The 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' heuristics indicate a deliberate attempt to create a link farm. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9987
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://okna-kurska.ru/page_edit/_samples/userfiles/files/zetuperigoj.pdf In PDF document text
- https://legacyltg.com/wp-content/plugins/super-forms/uploads/php/files/4306e1e33413969274ff80b6fe9742bd/75804236247.pdfIn PDF document text
- http://skuplaptop.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1609c96b200c2b---17716791356.pdfIn PDF document text
- https://evenimentecastel.ro/wp-content/plugins/super-forms/uploads/php/files/s5d19riq2ku2on87grin8r1nj8/43688866125.pdfIn PDF document text
- http://nakajima-ya.com/upload/save_image/files/40430677608.pdfIn PDF document text
- http://amon-syotengai.com/userfiles/file/98317938100.pdfIn PDF document text
- https://etest.vn/app/webroot/uploads/files/taxuvefebojukabelalivuwet.pdfIn PDF document text
- https://affordans.com/ckfinder/userfiles/files/mozinovusaf.pdfIn PDF document text
- http://myphamasia.net/upload/files/sutediguvuwiv.pdfIn PDF document text
- http://dinobajka.pl/Upload/file/kuxefuji.pdfIn PDF document text
- http://asfalon.com/__files/file/22876701976.pdfIn PDF document text
- https://www.gasserbush.com/wp-content/plugins/super-forms/uploads/php/files/7222717e1efe5328a9b7b42f27f4ebf0/20189973437.pdfIn PDF document text
- https://digireg.es/upload/bemanoke.pdfIn PDF document text
- https://www.paparazzirestaurant.com.au/wp-content/plugins/super-forms/uploads/php/files/7a6393e86ff22731698bb14a5e96e9ac/pijupagud.pdfIn PDF document text
- https://unitjaya.com/contents//files/vubosuwagaxuked.pdfIn PDF document text
- https://notrepanierbio.ch/userfiles/file/dutemuvagipiwevabugegis.pdfIn PDF document text
- https://yidinfo.net/wp-content/plugins/super-forms/uploads/php/files/purgasutkjq8b46us52brqdtjc/72545773345.pdfIn PDF document text
- http://hometextiles-consultant.com/ckfinder/userfiles/files/bemerotivubokevenire.pdfIn PDF document text
- http://greenearthgardens.org/userfiles/zijekidupemaxup.pdfIn PDF document text
- https://firsatoyun.com/calisma2/files/uploads/juzuzuvegozi.pdfIn PDF document text
- http://merlegdoktor.hu/tmp/10371524064.pdfIn PDF document text
- https://jaunimodienos.lt/wp-content/plugins/super-forms/uploads/php/files/gmfnk7rblj5uu7l55pqcarniqa/kiwulozala.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=insert+code+in+confluencePDF link annotation
- http://janyska.home.pl/_mjanyska2013/fotki/file/7815821632.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_off0000bfc2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBFC2 | 10356 bytes |
SHA-256: c3c7614e985139dec0c932485c1c5df014fa267bed3ca2e01ee98328e4bd97f8 |
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font_01_sfnt_off0000d742.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD742 | 16776 bytes |
SHA-256: 10247b2209c15402602e63fee320ba59ea3180b52938d16296ad1aa9f92a0317 |
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font_02_sfnt_off000102e0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x102E0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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