MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links, many pointing to compromised WordPress sites or disposable hosting, indicating a link farm designed to redirect users. The presence of multiple PDF link farm heuristics further supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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 http://goldia.cz/data/file/6495708008.pdf In PDF document text
- https://hongmao.tw/uploads/files/202109210524292605.pdfIn PDF document text
- http://www.dadosefatos.net.br/wp-content/plugins/formcraft/file-upload/server/content/files/161467e92e0644---14087041967.pdfIn PDF document text
- https://gallerylingard.com/uploads/file/fijateku.pdfIn PDF document text
- http://www.kigimex.com.vn/ckfinder/userfiles/files/nolob.pdfIn PDF document text
- https://www.sacproblemleri.com/wp-content/plugins/formcraft/file-upload/server/content/files/16149b82d322b5---guxigovokinaxebir.pdfIn PDF document text
- http://anael.fr/fckeditor/userfiles/file/nojozat.pdfIn PDF document text
- http://vo23.ru/upload/file/58499078146.pdfIn PDF document text
- http://inlovehuahin.com/file_media/file_image/file/korafevoluxasulu.pdfIn PDF document text
- http://agrocare.hu/ckfinder/userfiles/files/45915209556.pdfIn PDF document text
- https://villanakarin.com/userfiles/files/88189332211.pdfIn PDF document text
- https://ceadersvalet.com/wp-content/plugins/formcraft/file-upload/server/content/files/161443d505c6c9---1088321809.pdfIn PDF document text
- http://neodentpetrosino.it/userfiles/files/kipinalobimoxojuzajuma.pdfIn PDF document text
- http://goldendazzle.com/upload/quangtri/files/basudejote.pdfIn PDF document text
- http://www.thunderesp.com/ckfinder/ckfinder.htmlfiles/fokev.pdfIn PDF document text
- http://baoveantam.info/upload/files/35506469676.pdfIn PDF document text
- http://icltindia.in/userfiles/file/80026740436.pdfIn PDF document text
- http://mylead-journey.mandiricareer.net/contents/files/82429014344.pdfIn PDF document text
- https://vietnam-pump.com/userfiles/file/zebekagegurajolodagigitu.pdfIn PDF document text
- http://xn--brneneskontor-landsforening-b0c.dk/userfiles/file/mofafasomitefe.pdfIn PDF document text
- http://henzefashion.com/userfiles/file/95602900611.pdfIn PDF document text
- http://duhochoangthanh.com/upload/files/nejejav.pdfIn PDF document text
- http://omegapizza.net/uploads/files/53791738755.pdfIn PDF document text
- http://klpa.net/userData/board/file/soluvilotudatadubu.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=install+ubuntu+alongside+windows+10PDF 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_off0000b1c9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB1C9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c9db.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC9DB | 16748 bytes |
SHA-256: 5f48c9f21df7587a3a14d16b5f647599b937cf2933c9df6de0ac4909a8e91168 |
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font_02_sfnt_off0000f48f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF48F | 10776 bytes |
SHA-256: 817aa310b2daf45de67e7200de13a4da30b11323daf5e65a10d0d913576458c0 |
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