MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a large number of external links, many of which point to disposable hosting or compromised CMS uploads, indicating a link farm or phishing lure. The ClamAV detection and ML classifier strongly suggest malicious intent, likely to redirect users to malicious sites or download further payloads.
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://cutyoursupport.com/userfiles/file/24743436763.pdf
- https://sananselmo.com/wysiwygfiles/file/duxozu.pdf
- http://dyneco.kr/userData/board/file/94648504040.pdf
- http://jagatjyotischool.org/jagatjyotischool/userfiles/file/63021862969.pdf
- http://24cvety.ru/upload/files/201536369.pdf
- http://graphicon.hu/wp-content/plugins/formcraft/file-upload/server/content/files/16132e3c283e7a---sadip.pdf
- https://nayyaralidada.net/alpha/ckfinder/userfiles/files/17236999989.pdf
- https://bulgariapools.com/contents/files/97275047268.pdf
- https://bruceleevideos.org/images/file/nojufolaxuwe.pdf
- https://www.helpagesl.org/wp-content/plugins/formcraft/file-upload/server/content/files/16135eafbc4bc4---gaxuretotupod.pdf
- https://www.le-domaine-de-hauterive.fr/ckfinder/userfiles/files/69113888210.pdf
- https://clubslotalmatriche.com/calcas/file/wepuviboguni.pdf
- http://altaprecision.com/userfiles/file/dogixarovujoser.pdf
- http://studiosiriosrl.it/userfiles/files/nabixesowusakib.pdf
- http://langmoon.jp/js/upload/files/gagotigajajunijura.pdf
- http://www.benvenutialmare.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d62a4d15e1---89214691930.pdf
- https://onecre.com/images/content/files/82770793706.pdf
- https://shopexpert.com/app/webroot/files/userfiles/files/kawij.pdf
- http://jtour.vn/userfiles/file/60927997670.pdf
- https://vialivonica.eu/userfiles/files/kegovuza.pdf
- http://yonseri.org/userfiles/files/jutagij.pdf
- http://www.fishandcosolicitors.com/uploads/files/dedusesugaziwiwewopipego.pdf
- http://maximaviajes.com/FCKfiles/file/45427817504.pdf
- http://szakkepzosiklos.hu/upload/file/beledesurapinagole.pdf
- https://barcelonacentromedico.es/files/galeria/files/61776398760.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=elaboraci%C3%B3n+de+cartas+descriptivas+antonio+gago+huguet+pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000eb6e.bin99acf7b643f18bdaf01c1025ebfc9c452e2a1a1d7aaf8539a449995e212b5918 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB6E | 11328 bytes |
font_01_sfnt_off0001055b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1055B | 16792 bytes |
font_02_sfnt_off00011d6d.bin44f8f5a2b8e59d6bda308bf16058f1f6669af4d0f8066f21e2a9a2d20603cd63 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D6D | 19892 bytes |
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