MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains a large number of embedded URLs, many of which point to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. No scripts were extracted, but the structure and URL patterns are indicative of a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9913
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://krisoc.ru/uplcv?utm_term=family+feud+questions+and+answers+list+pdf PDF link annotation
- http://leap-egypt.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a23d7a9b54d---zofidusugawabavorav.pdfIn PDF document text
- https://ego-sofa.tw/uploads//files/202108060649204892.pdfIn PDF document text
- https://www.drserapkagan.com/wp-content/plugins/super-forms/uploads/php/files/62a52jtqohoh1eq2r8m8lebogg/rezigalibotilazob.pdfIn PDF document text
- http://beateromer.com/bilder/file/68801189875.pdfIn PDF document text
- http://premiercontractinginc.com/files/file/47786980136.pdfIn PDF document text
- https://tort-art.ru/userfiles/file/vulafiritotomu.pdfIn PDF document text
- http://brighterhealthcare.co.uk/wp-content/plugins/super-forms/uploads/php/files/k2bhapupr16kh06umh0486alco/gudutulajanezugef.pdfIn PDF document text
- http://fhs76reunion.com/clients/0/00/009202203981f132fd14d012a57c0fe5/File/vodesiz.pdfIn PDF document text
- http://www.egavilanes.com/ckfinder/userfiles/files/69196711293.pdfIn PDF document text
- http://chronocertif.com/userfiles/file/zizur.pdfIn PDF document text
- https://alphacleanwashing.com/wp-content/plugins/super-forms/uploads/php/files/b818914dfb7b947792b53d085597ed1f/3664655358.pdfIn PDF document text
- http://transcash.com/ci/userfiles/files/62155713976.pdfIn PDF document text
- https://vresponse.net/userfiles/file/xudasoxemazakerazejeximaj.pdfIn PDF document text
- http://vdgairconditioning.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16078d185e1142---75842452710.pdfIn PDF document text
- http://www.aunay-sous-auneau.fr/ckfinder/userfiles/files/77302040822.pdfIn PDF document text
- https://www.travelticket.com.au/wp-content/plugins/super-forms/uploads/php/files/fke4sg0mu1b8c9sfr794jjsjor/rezaxokedafewar.pdfIn PDF document text
- https://sipare.com.ar/wp-content/plugins/super-forms/uploads/php/files/oee99etreqqddbm9f2mjo3jcna/69247734687.pdfIn PDF document text
- https://technok.cz/wp-content/plugins/super-forms/uploads/php/files/0d7b82355f74cdec7f90c0fe94388581/23045503989.pdfIn PDF document text
- http://acpiindia.com/userfiles/file/21923532863.pdfIn PDF document text
- https://www.lenoir-elec.com/wp-content/plugins/super-forms/uploads/php/files/2uvbnd2okh4apfgksgqude00jo/81942343793.pdfIn PDF document text
- https://ocvirapuato.com.mx/wp-content/plugins/super-forms/uploads/php/files/7f13bc2b9e5b9073aa54c50e5bd3493d/59847368662.pdfIn PDF document text
- http://cupta.org/userfiles/files/20210526225311.pdfIn PDF document text
- https://www.numberoneporthill.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160a506b1689bd---95979154494.pdfIn PDF document text
- https://mzlpro.com/web/img/podborky/files/raxuxixonegepajari.pdfIn PDF document text
- http://izeninfo.net/admin/upload/files/47022798999.pdfIn PDF document text
- https://ohligschlaeger-berger.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a8f3faa501c---golikapugudiwoxagufewagi.pdfIn PDF document text
- 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_off00010231.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10231 | 11084 bytes |
SHA-256: 7c8b2c0b5ed824d8430fb306dc75218a1274e48e6eb2e878ba8e7e58ade68a36 |
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font_01_sfnt_off00011bd4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11BD4 | 18344 bytes |
SHA-256: 7523bf2576cc60796399213279614a6a45a779a339f3f5c3e047fc24a4809f8e |
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font_02_sfnt_off00014abe.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14ABE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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