MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which are hosted on disposable domains or compromised CMS upload directories, indicating a link farm designed to redirect users to malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution.
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 https://queure.ru/uplcv?utm_term=pokemon+ruby+rom+for+android
- http://mrs-edu.com/sribati/editor/uploadfiles/xinaruvogegudomebefurez.pdf
- http://www.emporiocaritaspisa.it/wordpress/wp-content/plugins/formcraft/file-upload/server/content/files/1612ecd1cb25f5---kabutonoludanobekev.pdf
- http://timnhanhonline.com/upload/files/depuzilafim.pdf
- http://heimundsicherheit.de/userfiles/file/dufopuduw.pdf
- http://studiotecnicopinto.it/userfiles/files/bitabilil.pdf
- https://renault-service.com/userfiles/kokolebizu.pdf
- https://www.theoakshealthcare.com/my_content/js/ckfinder/userfiles/files/dirarovugijuzejurur.pdf
- http://cohn-vossen.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613cff5e6388f---mefolo.pdf
- http://schouteninterieurwerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16137a2529c0c4---gokotaxalixoxorarir.pdf
- http://adacu.org/userfiles/file/20210913203132.pdf
- https://euronuts2009.ge/files/files/sesejaxi.pdf
- http://the100voicesofgospel.de/fichiers/newsletter/file/gonilesemudolafinulago.pdf
- https://www.hotelrestaurantmacarena.fr/ckfinder/userfiles/files/37555558249.pdf
- http://thestarbusan.net/FileData/ckfinder/files/20210919_4F0C7F826CDFE495.pdf
- http://cowmoo.org/ckfinder/userfiles/files/77301838371.pdf
- http://boothbayharborshipyard.com/userfiles/file/42882187366.pdf
- https://www.ferienhof-schneider.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613990958c924---venaragujabiguroretivape.pdf
- http://epmachine.ru/d/files/zajujixelapoxodezu.pdf
- https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139f5ee7c78e---zejaf.pdf
- http://tutaylamhet.com/storage/ckfinder/files/pixexufuxutabowigo.pdf
- https://girisimhaber.com/uploads/file/52381359591.pdf
- http://syntrend.critical.tw/upload/files/29245277216.pdf
- https://smarttactic.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1613e4a7e935e1---4281791867.pdf
- http://foto-recepty.sk/images/fotky/tikitejonixezigekakoru.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_off0000c229.bin7fd49dc5400f7bd781f89d493b94a7c7ecf434318410364d51e777c0af924f8d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC229 | 10652 bytes |
font_01_sfnt_off0000da8a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA8A | 16792 bytes |
font_02_sfnt_off0000f29c.binc25762a98023a5df3b841938a4ddcce3a79147006313b909d33af701314690fb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF29C | 17684 bytes |
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