MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is identified as malicious by ClamAV and an ML classifier, with heuristics indicating embedded JavaScript and a link farm pointing to compromised CMS uploads and disposable hosting. The embedded JavaScript likely facilitates the redirection or further payload delivery. The numerous unknown URLs suggest a broad attempt to lure victims through various domains.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://sambelteri.com/contents/files/39116501696.pdf In PDF document text
- http://knupress.com/pds/editor/file/99180715683.pdfIn PDF document text
- http://dlugopis.kbo.pl/ckfinder/userfiles/files/66706913201.pdfIn PDF document text
- http://atol-res.pl/uploads/file/befumawogopol.pdfIn PDF document text
- http://uktohabbarijamalta.com/files/file/lagitirulumosuvaxudi.pdfIn PDF document text
- https://retentionstudentexperience.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614237b4b415d---8531038169.pdfIn PDF document text
- https://fullmagicweekend.com/ckfinder/userfiles/files/35397277036.pdfIn PDF document text
- http://alvasari.com/wp-content/plugins/formcraft/file-upload/server/content/files/16142fb7c6ac8e---bifif.pdfIn PDF document text
- http://www.veslovani-vsb.cz/soubory/file/71682890559.pdfIn PDF document text
- https://www.potterycommercials.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1614130204ba15---nunojurobutuxu.pdfIn PDF document text
- https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/b7f722be4a630a526f64f0307b43de08/fuzokinisebabumofot.pdfIn PDF document text
- https://mercedesmazo.es/wp-content/plugins/formcraft/file-upload/server/content/files/1613df41847025---jufixukisu.pdfIn PDF document text
- http://mountmedpharmacy.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/161377eb361ce5---99951110986.pdfIn PDF document text
- https://nuevocoach.co.uk/wp-content/plugins/super-forms/uploads/php/files/6b7a67929c64a450a54c9485e4fed9ad/34373788952.pdfIn PDF document text
- https://securitydm.rs/slicice/file/baxifi.pdfIn PDF document text
- http://nghiencuuykhoa.com/uploads/userfiles/file/molowerudewezugoga.pdfIn PDF document text
- http://vngo-cc.vn/cooker/public/files/puzisefijonudofipelufodip.pdfIn PDF document text
- http://czernavendeghaz.hu/admin1/file/kasiku.pdfIn PDF document text
- http://onroerendgoedindex.nl/images/uploads/butazogidetarefekavetari.pdfIn PDF document text
- https://konferencii.ru/js/ckfinder/userfiles/files/9840227516.pdfIn PDF document text
- http://chuabenhxuongkhop24h.com/images/files/86333599670.pdfIn PDF document text
- http://ecolservizinettuno.com/userfiles/files/11840690530.pdfIn PDF document text
- http://sangjeom.com/userfiles/file///76557001531.pdfIn PDF document text
- https://lostsoulsmemorialnj.org/wp-content/plugins/super-forms/uploads/php/files/a395e366bf33643aaedd84a8f97058c3/3305767733.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=interchange+4th+edition+level+1+student+book+pdfPDF 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_off0000b7f1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB7F1 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d008.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD008 | 11380 bytes |
SHA-256: 01dd666da0e67d8ec5a2e6c83e637a7535ee365667856f0392d9ea7a6f7a0949 |
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font_02_sfnt_off0000ea72.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA72 | 14332 bytes |
SHA-256: bf20561a8feb88f0178457294ec9d74fcbf9191705a4b6791a729014c0cb2fab |
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