MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains numerous embedded URLs, many pointing to compromised WordPress sites or disposable hosting, suggesting it's designed as a link farm to redirect users to malicious content. The presence of external URI heuristics further supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
Heuristics 6
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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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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://philabc.ru/uplcv?utm_term=unit+weight+of+construction+materials+pdf
- http://przychodnia-felinskiego.pl/uploads/editor/file/vimubiviwun.pdf
- https://jclifeschools.org/wp-content/plugins/super-forms/uploads/php/files/de637096169790f37b8537f1435c1309/94688526784.pdf
- http://staresecurity.com/userfiles/file/40168842039.pdf
- http://ttlengenharia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609060ca0f3dc---94836073027.pdf
- http://saokienviet.com/uploads/image/files/jetomudapazivosuwelone.pdf
- https://proektasis.gr/admin/spaw2/uploads/files/22193497128.pdf
- https://sweetestspaparty.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bb5a6866dfc---80448624999.pdf
- https://smithsgame.com/calisma2/files/uploads/bojonalovu.pdf
- https://palcev.ru/userfiles/file/nuzazawesapeg.pdf
- http://indiebookoftheday.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e59bca9132---46965495005.pdf
- http://vincityhomes.vn/wp-content/plugins/super-forms/uploads/php/files/hm01ho7384b0jg9vg4bsdk7de2/72776912772.pdf
- https://mandalaconfeccao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16087cb5b7f2f2---pedunu.pdf
- https://proff-doors.ru/wp-content/plugins/super-forms/uploads/php/files/60047a2d02031e4fe4d3ae41fec8fa64/lewodejud.pdf
- http://raunlarose.us/wp-content/plugins/formcraft/file-upload/server/content/files/1606cda26b03c9---32781447164.pdf
- https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/fc3d54feb63b2f0896134e0e9efbd42b/mexodi.pdf
- https://ekransamara.ru/files/gagarinowudiduginesopan.pdf
- http://jamoncup.es/wp-content/plugins/formcraft/file-upload/server/content/files/160cc6bc1a9ed3---gogizerexizeta.pdf
- https://wurstfargo.com/wp-content/plugins/super-forms/uploads/php/files/bd21e1978d2f5861205573ad2e6db015/82225602003.pdf
- http://www.tomasjelinek.com/img/pub/file/51740679724.pdf
- http://ilovegabal.net/fckeditor/_upload/file/70256989202.pdf
- https://www.lightingsolutionsal.com/wp-content/plugins/super-forms/uploads/php/files/ab3047a7d5f3164cb76611b3b6838a6d/50795233186.pdf
- http://zwickerfoto.hu/_user/file/nigululadoxer.pdf
- https://gadd-asso.org/userfiles/file/88736733391.pdf
- http://xtra360.net/campannas/file/roruj.pdf
- https://unique.global/wp-content/plugins/super-forms/uploads/php/files/bcf95b8eda4ba2a15937f46d313d51ba/35417301295.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f309.bin5637f992fba8eb7d65a7115629ac7e36489a71f0ad40a7bc10417eca06b07603 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF309 | 18020 bytes |
font_01_sfnt_off0001229c.binec5db79f4afe0f26ae1418fbea66126d4107d1f6eb330a4da1dec42ed67e91bb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1229C | 11260 bytes |
font_02_sfnt_off00013caf.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13CAF | 16792 bytes |
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