MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous URLs pointing to compromised websites and disposable hosting, suggesting a link farm or phishing lure. The presence of PDF-specific heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' further supports this, indicating the document is designed to redirect users to malicious content. No scripts were extracted, but the overall structure and URL distribution point towards a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9987
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://archism.ru/uplcv?utm_term=accountant+interview+questions+and+answers+pdf+download PDF link annotation
- https://daluxerealty.com/wp-content/plugins/super-forms/uploads/php/files/bgp2g9rhi66idge82opgpt2270/73283361253.pdfIn PDF document text
- https://shevtsov-art.com/uploads/files/56721971681.pdfIn PDF document text
- https://k9-warrior.com/wp-content/plugins/super-forms/uploads/php/files/g8u6r0jokedqnhd414kvg95kfq/33398459356.pdfIn PDF document text
- http://lilit-realty.com/wp-content/plugins/super-forms/uploads/php/files/l8isf121mirmho02c1ejus9537/zugozozedub.pdfIn PDF document text
- https://thuaphatlaihanoi.net/uploads/files/dolulovij.pdfIn PDF document text
- http://elskup.pl/images/assets/file/85910747205.pdfIn PDF document text
- http://tantex.org/tantex/tantexuserfiles/file/38775249143.pdfIn PDF document text
- https://hgb.se/filer/file/66960671814.pdfIn PDF document text
- https://islandsvefir.is/wp-content/plugins/super-forms/uploads/php/files/vofikhfg8mle52bc87uq1dj1fk/77550532785.pdfIn PDF document text
- https://elicopter-de-inchiriat.ro/wp-content/plugins/formcraft/file-upload/server/content/files/161011fe1396be---2790726092.pdfIn PDF document text
- http://businesslegalgroup.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/pomalo.pdfIn PDF document text
- http://adhdadvisory.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609839e460af8---lusewiwumukidunalox.pdfIn PDF document text
- http://beerskiboot.de/img/upload/file/lasoz.pdfIn PDF document text
- https://teenvolunteerdallas.org/wp-content/plugins/super-forms/uploads/php/files/e1ee9fc699f050c7a3c8c1235461f8fe/sutufoz.pdfIn PDF document text
- http://www.goldenlantern.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1606ca50f7f745---widot.pdfIn PDF document text
- https://claphamjunction.com.au/wp-content/plugins/super-forms/uploads/php/files/e2de247f5961a0e16dd7a3dd5fec9b63/91076128216.pdfIn PDF document text
- https://shotclock.ca/wp-content/plugins/super-forms/uploads/php/files/ec9bcffc016b43f4980b3d1968e48b3e/kixagijagikokisofaziruj.pdfIn PDF document text
- https://nbtele.com/en/cache/fck_files/file/6573076095.pdfIn PDF document text
- https://janeunchained.com/wp-content/plugins/super-forms/uploads/php/files/dnng4mr4i6ljeit809ufdqhq01/ridebofemugosikiwoja.pdfIn PDF document text
- http://globeksa.com/ckfinder/userfiles/files/4926701503.pdfIn PDF document text
- http://ilturismoinitalia.it/userfiles/files/pezudolo.pdfIn PDF document text
- https://nadinerogger.ch/userfiles/files/rikoruw.pdfIn PDF document text
- http://longarmacademy.net/fckeditor/userfiles/file/87637152596.pdfIn PDF document text
- https://www.kiteschule-kiel.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b5b100e6ac6---lofagefoxitejuvubusiv.pdfIn PDF document text
- https://ecobox.eng.br/wp-content/plugins/super-forms/uploads/php/files/9lc9rai14q7k8ckgrh2jb3csl8/93058120611.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_off00011c78.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C78 | 10992 bytes |
SHA-256: bb403b72ff408218b2c8e54a4e0b9d790f00e44863aae63230ebea0d898e4012 |
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font_01_sfnt_off00013605.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13605 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00014e17.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14E17 | 17968 bytes |
SHA-256: 5001856c6898e28bdaae77c373a53b33741fb9a13c5a4f3301e929b622c35433 |
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