MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample contains embedded JavaScript, which is often used to exploit PDF vulnerabilities or redirect users. The numerous external URIs, many pointing to compromised CMS uploads, suggest a link farm designed to obscure the ultimate destination and potentially distribute malware or facilitate phishing. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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 http://www.ebsjosepirosamaria.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076a2870b09e---zabunawiduxenesujok.pdf In PDF document text
- https://anzmrrn.org/wp-content/plugins/formcraft/file-upload/server/content/files/1608db3798a8c2---sonupixefule.pdfIn PDF document text
- http://www.sec-ollivier-associes.fr/www/upload/file/36311273485.pdfIn PDF document text
- https://www.generalutilities.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a05658c59a8---toparerunimokirurabiboke.pdfIn PDF document text
- http://tbff-bygg.se/img/files/ranitosurata.pdfIn PDF document text
- http://www.publicitymailing.ie/wp-content/plugins/formcraft/file-upload/server/content/files/160bd507321efd---26166606143.pdfIn PDF document text
- https://www.grandeprairie.org/wp-content/plugins/formcraft/file-upload/server/content/files/1606f6824a9e78---debenura.pdfIn PDF document text
- http://lica.plovdivweek.com/js/ckfinder/userfiles/files/mafarinalubezokijujapatid.pdfIn PDF document text
- http://kochamsushi.pl/UserFiles/file/86095992522.pdfIn PDF document text
- https://www.accidentinjurylascruces.com/wp-content/plugins/super-forms/uploads/php/files/c2p1qbi9s721nf4gkdv9vq8u85/45426636209.pdfIn PDF document text
- http://highspiritsmusic.com/ckfinder/userfiles/files/28809205259.pdfIn PDF document text
- http://tincorner.vn/uploads/files/lerogenafosisozenox.pdfIn PDF document text
- https://www.alarisusallc.com/wp-content/plugins/super-forms/uploads/php/files/3ed1c211481747b4840c86d63fa7dc1f/jokojivenalujos.pdfIn PDF document text
- http://cricalliance.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f4fc0b7f8d---31692921049.pdfIn PDF document text
- https://mobspace.xyz/web/img/podborky/files/mamok.pdfIn PDF document text
- http://aksaaydinlatma.com/img/editor/image/file/texixafukawusediw.pdfIn PDF document text
- http://ganan10.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/1607de26ec45b6---36946462083.pdfIn PDF document text
- http://xn----1-6cdapb2bdyqawnpcindqfc.xn--p1ai/media/file/basozowagejinajamugig.pdfIn PDF document text
- http://for-rent-aalst.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075757088c24---zazuzulagawisajapokiwax.pdfIn PDF document text
- http://bjhtdszdh.com/v15/Upload/file/2021523948544868.pdfIn PDF document text
- https://ctapigroup3.com/contents//files/golejexivovata.pdfIn PDF document text
- https://lorenzonimmigrationlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608612f6751b7---55960011553.pdfIn PDF document text
- https://www.cocochan.com.pk/wp-content/plugins/super-forms/uploads/php/files/abfa4a8a42f9c95f50e850d8ae831722/77196464266.pdfIn PDF document text
- https://lakecountyoralsurgery.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ba203d1db1---34944175527.pdfIn PDF document text
- http://rld-carbon.ru/file/ditaguvaxatubipodexebof.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=gallien+krueger+mb+112+ii+manualPDF link annotation
- 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_off0000f05a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF05A | 19768 bytes |
SHA-256: 5d437bc2c3480d6fc63ed7ee67707ff7507e5437f40e331d32085f0569f2e205 |
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font_01_sfnt_off000124a9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x124A9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00013cc0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13CC0 | 10608 bytes |
SHA-256: f1afc55f6517e9fc465367536703ee9d4039ed7102a18ef4bf23744185fcb1a5 |
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