MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm or phishing lure. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution. The presence of multiple external URIs and a link farm heuristic confirms the attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9994
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://ketchas.ru/uplcv?utm_term=how+to+stream+to+firestick+from+android PDF link annotation
- http://bxbrdh.marketsearching.com/upload/files/sorelasa.pdfIn PDF document text
- https://bunyaminerdemir.com/resimler/files/98566644008.pdfIn PDF document text
- http://www.bash.cl/media/file/tevar.pdfIn PDF document text
- http://sethhukumchandschool.com/userfiles/file/buparipawanosupex.pdfIn PDF document text
- https://bistro-8.com/wp-content/plugins/super-forms/uploads/php/files/dc51a82af452b7189f54477c731bcbec/wamowutulose.pdfIn PDF document text
- http://awarelaxcentrum.cz/user_files/file/wujofanutesekazasi.pdfIn PDF document text
- http://nitexprofi.cz/userfiles/file/luwotusesejub.pdfIn PDF document text
- https://brunoamaranti.it/wp-content/plugins/super-forms/uploads/php/files/pt9sekrat2gsamak4126utvkl6/vabawed.pdfIn PDF document text
- https://art-eria.pl/mandarynka/pliki/files/25641787855.pdfIn PDF document text
- http://vpsystem.com/files/fck/43836594549.pdfIn PDF document text
- https://pilot-nav.socksnbows.com/ckfinder/userfiles/files/55334280982.pdfIn PDF document text
- http://reiki-roots.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16139c3dd77a5b---11434522364.pdfIn PDF document text
- http://imobilestore.de/userfiles/file/fetezelofin.pdfIn PDF document text
- https://villadorottya.hu/uploads/frontend/files/dedusodatulorapakomafosi.pdfIn PDF document text
- https://supermovi.com/userfiles/files/ravoforavelizuvaxuwowubak.pdfIn PDF document text
- https://aicpwdosaeast.com/ckfinder/userfiles/files/xejusabixunudilepis.pdfIn PDF document text
- http://jiachuankeji.com/upload_fck/file/2021-9-22/20210922225045860175.pdfIn PDF document text
- http://actlogistic.vn/upload/editor/files/mavonovexukawopafu.pdfIn PDF document text
- https://nurea.se/currency/userfiles/file/kuvobegenumapaj.pdfIn PDF document text
- http://standdominica.org/files/files/14350153501.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_off0000d7ee.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7EE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f000.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF000 | 18228 bytes |
SHA-256: 14dd8545b2d3188d73545bd05addef8bdc67f9ca9ddcde318e50bc79bcbff3f4 |
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font_02_sfnt_off00011f4e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F4E | 10760 bytes |
SHA-256: 074fe41c1ced8bfbd6bf0039a5a64bbf5155f146ad52cef4c076a971f67ca73b |
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