MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
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, suggesting it's designed to redirect users to malicious content. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the overall structure and URL analysis indicate a link farm attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9840
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://ckmusicdesign.nluserfiles/file/beganen.pdf
- http://carlaschroyen.com/content_docs/18832695106.pdf
- http://www.blackhillsdancecentre.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac68042c3f1---27306527891.pdf
- http://houstontca.org/Content/uploads/files/49638597930.pdf
- https://webmodels.studio/wp-content/plugins/formcraft/file-upload/server/content/files/160804cb3211b6---werusid.pdf
- http://urbanconstructions.org/images/uploadedimages/file/21055295027.pdf
- http://consoles-a-gagner.com/fckeditor/userfiles/file/jetisazavewa.pdf
- http://omniatel.it/wp-content/plugins/formcraft/file-upload/server/content/files/160bc2f33e179f---45163331090.pdf
- https://118highschool.am/wp-content/plugins/super-forms/uploads/php/files/4201ab67369a40ddfee3337561ac4271/9862795636.pdf
- http://timelessmebel.ru/wp-content/plugins/super-forms/uploads/php/files/63b2fe2b31ebf9d79f6a1c17e6b90083/6112053787.pdf
- http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607593da79a9b---12886738573.pdf
- https://deniz-sogutma.org/img/userfiles/file/4582042870.pdf
- http://reversetheclocknow.com/ckfinder/userfiles/files/vikupojowo.pdf
- https://smoothnomad.com/wp-content/plugins/super-forms/uploads/php/files/bb9qg0r1mhs99on5lm3d4j3o58/wiwutoseporapaxefuvixik.pdf
- http://www.danvillern.com/wp-content/plugins/super-forms/uploads/php/files/nqhnlru18to85j0op174f31or7/lojokexobozamijut.pdf
- http://zawayakw.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e892b99220---673209629.pdf
- https://webmodeli.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ef467eb9a5---fisazapowepifelo.pdf
- https://christianboudreau.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073c58e5e4d7---japikojapigukugi.pdf
- http://cpgny.com/userfiles/files/53060289387.pdf
- https://www.northamericatalk.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608421e29753f---69060149549.pdf
- https://lorenzonimmigrationlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa15df4664b---70065938496.pdf
- http://studiovalentini.eu/userfiles/files/kuvaxogofob.pdf
- https://adm.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/5d68be5a17b048937baa5b240d00cde9/90550141129.pdf
- http://dabien.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/16070215f4e9aa---39148183865.pdf
- https://usssecuritate.ro/userfiles/file/10659592137.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=2015+electrical+code
- http://kioskcondoweb.wpengine.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f76d2c435a---62132447180.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_off0000c5da.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC5DA | 16792 bytes |
font_01_sfnt_off0000ddf1.binfea32173607106eae116a97efff28ff3953d7452fd4a96fb61173375d4a9d5df |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDDF1 | 10420 bytes |
font_02_sfnt_off0000f5c0.binde3c06055aa1d315ca61ffd999fe3e52c7a73a2d171ee5e9211a87ad772528df |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5C0 | 16516 bytes |
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