MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document contains numerous embedded URLs, many of which point to compromised websites or disposable hosting, indicating a link farm designed to redirect users to malicious content. The ClamAV detection and ML classifier strongly suggest this PDF is malicious, likely serving as a phishing lure or a distribution point for further malware. No scripts were extracted, but the PDF structure itself facilitates the attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://infrive.ru/uplcv?utm_term=italo+svevo+libri+pdf
- http://tiramisu-o.com/yamituki-n/uploads/files/tewetatuzaxupixanezina.pdf
- http://panhongbo.com/ckfinder/userfiles/site_eachfun_com/files/77705586909.pdf
- http://sts-logistika.ru/wp-content/plugins/super-forms/uploads/php/files/8cf37c73d6078f11ee9c0da646f784f4/sizenu.pdf
- https://revapackers.com/wp-content/plugins/super-forms/uploads/php/files/6untpqgt40nu0voj4di91a7t6c/rewabif.pdf
- http://toyotalongbien.org/data/dulieu/files/ragepawuxutet.pdf
- https://lesfeesdelhetre.fr/upload/files/medibuwagope.pdf
- http://eros-arena-reutlingen.de/eros/userfiles/file/285605506.pdf
- http://totoquynhhuong.com/upload/files/vukipipezoxomuwa.pdf
- http://web-news.eu/www/pkpar/userfiles/file/lupeluveratebutik.pdf
- https://poker-fire.de/file/zopezenikawim.pdf
- https://www.studioline.ie/ckfinder/userfiles/files/9941979222.pdf
- https://gozdemsigorta.com/hulya/upload/files/nupowaniwawovari.pdf
- http://fotossc.pl/_files/file/baliluvisubawafonivovoje.pdf
- http://www.agrosystem.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1606c99a0ac4f2---noruva.pdf
- http://mabo-meccanica.eu/userfiles/files/12478497733.pdf
- https://shinyjewellers.com/wp-content/plugins/super-forms/uploads/php/files/4l03nptfupnumk8cea109mdjh6/sedezusor.pdf
- http://www.airportlimofortlauderdale.net/wp-content/plugins/formcraft/file-upload/server/content/files/160e8d39c0c1e4---54128309078.pdf
- http://tortsurprise.ru/upload/redactor/files/92795229385.pdf
- http://mfplus.ba/wp-content/plugins/formcraft/file-upload/server/content/files/1606fb1da5a4b6---33856718235.pdf
- http://www.expo-hotel.com/english/wp-content/plugins/formcraft/file-upload/server/content/files/16070327fd705f---64809584133.pdf
- https://activepymes.com/pub/file/75310098448.pdf
- http://mobilephleb.com/clients/2/2d/2d2188d13063160162e6e2bbcdac547d/File/19386684926.pdf
- http://sakirnoopo.ru/wp-content/plugins/super-forms/uploads/php/files/bd1c67091bef1767222ed83ee3337922/tikexadijinevegipobuluw.pdf
- http://lichnyiybrand.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1607d62cfd29b0---98695347754.pdf
- http://www.skupp.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160799c472498b---pofuxupezar.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_off0000eb80.bin3502408df1fb210116d76db167b7fab50c8cbe5f6b8f4440371d186ef67a8956 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB80 | 10544 bytes |
font_01_sfnt_off00010376.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10376 | 16792 bytes |
font_02_sfnt_off00011b88.binf08a17e6fa43ee83d3b1b86c522852c5642bae3c637176bf59b96a207ef5c3b6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B88 | 18352 bytes |
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