MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous URLs pointing to compromised WordPress sites and other disposable hosting, suggesting it functions as a link farm designed to redirect users to malicious destinations. The presence of these links and the overall structure indicate an attempt to exploit users through deceptive redirection.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
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://infrive.ru/uplcv?utm_term=triple+bond+sigma+and+pi PDF link annotation
- http://ednak.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134500ca2e60---95294465664.pdfIn PDF document text
- http://tysons-cafe.com/uploads/files/gaduzolaxevekaxofuwob.pdfIn PDF document text
- http://muntepa.com/userfiles/files/wesofigasivufiwofojoda.pdfIn PDF document text
- http://bodegaadrover.com/userfiles/imagenes/27255646726.pdfIn PDF document text
- http://kwik-it.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16142246dc0053---87050054715.pdfIn PDF document text
- http://bookblog.kr/data/file/files/35708934808.pdfIn PDF document text
- https://www.autopsrus.com/ckfinder/userfiles/files/54713887278.pdfIn PDF document text
- http://phutunggiahungoto.com/uploads/files/tupako.pdfIn PDF document text
- http://topmebli.com/content/xuploadimages/file/7297894001.pdfIn PDF document text
- https://fmpride.com/wp-content/plugins/super-forms/uploads/php/files/4bfbaa640828b6bd446fd39c0a466972/bupibilunokabazal.pdfIn PDF document text
- https://www.comperat-89.fr/ckfinder/userfiles/files/tobeven.pdfIn PDF document text
- http://bagpack.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/16141a5218e2c5---97318823023.pdfIn PDF document text
- https://www.americanapi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613bef4d32251---52895469592.pdfIn PDF document text
- https://thegioidongphuc.net/ckfinder/userfiles/files/6420255949.pdfIn PDF document text
- http://luisacortesearchitetto.it/userfiles/files/jinexepetuxusi.pdfIn PDF document text
- https://saintarseny.ca/sites/saintarseny.ca/files/file/23256193341.pdfIn PDF document text
- http://bascobrunswick.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1613b1c146af0d---47770875206.pdfIn PDF document text
- https://evpersoneli.net/ev-personeli/file/2567986109.pdfIn PDF document text
- https://sapporomn.com/userfiles/files/17291203144.pdfIn PDF document text
- https://inchirieriavioane.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1613bdff6baa9c---guzadezorifilajekowaruza.pdfIn PDF document text
- https://mekongtransport.com/upload/userfiles/files/49334702165.pdfIn PDF document text
- http://rivebistro.net/ckfinder/userfiles/files/33511333198.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_off0000e6c3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE6C3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000feda.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFEDA | 10740 bytes |
SHA-256: 768d2c7842dba43438161ca523ce61aa4bab17b6834dcdf7880c593746bdc056 |
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font_02_sfnt_off000116f7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x116F7 | 19004 bytes |
SHA-256: 39a4d949830e8772dd21dd5d23de80bccb082d3202860521c9de3d0884eae9a3 |
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