MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as Pdf.Phishing.Trojan. The presence of numerous external URIs, many hosted on potentially compromised or disposable domains, indicates a link farm designed to redirect users to malicious content. The PDF's structure and embedded links suggest it is part of a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://synerhu.ru/uplcv?utm_term=the+cell+worksheet+answers PDF link annotation
- https://energooptima.hu/upload/File/tokopadaxelezokajevo.pdfIn PDF document text
- http://orgue-chantepie.info/FCKeditor/upload/file/gomizaninutesu.pdfIn PDF document text
- https://bonafideonline.com.ar/wp-content/plugins/super-forms/uploads/php/files/aedcaf2a57a83df3e43356137acdb03d/94165687433.pdfIn PDF document text
- http://architects-desk.com/uploadsfile/kusikepigawibokadebixamev.pdfIn PDF document text
- http://akademia-jedenastka.pl/zdjecia/fck/file/pibejekiwunodokafof.pdfIn PDF document text
- https://www.napariverinn.com/wp-content/plugins/super-forms/uploads/php/files/ed46b3e3fc43b3ab6e3acc048aedbd6f/63499228467.pdfIn PDF document text
- http://botosani.ro/img/uploads/file/jufiseviburuzexexapezekut.pdfIn PDF document text
- http://mtlebanon62.com/clients/5/5e/5ee551a8be14a26d7d76bc5e90dd1372/File/tixezogipudebutajoxitex.pdfIn PDF document text
- https://realimpacto.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607cd5403249c---14384506687.pdfIn PDF document text
- http://www.argentum.com/wp-content/plugins/super-forms/uploads/php/files/a2qh18kijmmo7d1aurj3nk266s/40004644088.pdfIn PDF document text
- http://ibb-online.ru/f/file/fugewejezamidofogezux.pdfIn PDF document text
- https://a2designbg.com/userfiles/file/78942275838.pdfIn PDF document text
- https://www.gs-gleichmann.de/wp-content/plugins/formcraft/file-upload/server/content/files/160cb23f6239d2---luwulidopitipekap.pdfIn PDF document text
- http://chaitraglaze.com/uploads/bozakadimozobobala.pdfIn PDF document text
- http://dsm-trhs68.com/clients/8/81/818e764d3414495a915a5f66638dc9bf/File/xujabazeranowaxujejimizef.pdfIn PDF document text
- https://www.geosuiteonline.de/wp-content/plugins/formcraft/file-upload/server/content/files/16078f99412333---sunabeboxulu.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000dea2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDEA2 | 4732 bytes |
SHA-256: d6f26ad49d22cfd7cfb3a82e83cb6ab3433c625ca2b66b247a665ada3dfcfabb |
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font_01_sfnt_off0000eeb6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEEB6 | 10480 bytes |
SHA-256: 6fa2a7ee5e0257c5ba64c9be138d24029831b5557bf2d7294a67724a584069ec |
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font_02_sfnt_off0001125b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1125B | 4324 bytes |
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c |
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