MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many of which point to compromised or disposable hosting, suggesting a link farm designed to redirect users. The presence of these links and the overall detection indicate an attempt to lure users to malicious sites, likely as part of a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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://lordoptika.hu/files/files/fakebowudafoduxe.pdf In PDF document text
- https://transilvaniafishing.ro/app/webroot/files/userfiles/files/29105213538.pdfIn PDF document text
- https://www.uniqueartzz.com/wp-content/plugins/super-forms/uploads/php/files/6874t4ueh3984sjbv3sll80pf6/wodusiw.pdfIn PDF document text
- http://umffz21.ru/admin/ckfinder/userfiles/files/wowed.pdfIn PDF document text
- https://vinamex.info/uploads/news_file/nubav.pdfIn PDF document text
- https://dp-engineers.com/admin/userfiles/file/xezoberogi.pdfIn PDF document text
- http://phutunggiahungoto.com/uploads/files/18100682844.pdfIn PDF document text
- http://brighterhealthcare.co.uk/wp-content/plugins/super-forms/uploads/php/files/eb0j13gdnfaihu71p3lk26udgs/1416157422.pdfIn PDF document text
- https://immo-macedo.lu/userfiles/files/lavekivemitigasubonurub.pdfIn PDF document text
- http://systemsbiology.at/uploads/assets/file/9180552448.pdfIn PDF document text
- http://naasschoolofmotoring.ie/fckeditor/userfiles/file/kewizoweponawuxew.pdfIn PDF document text
- https://comfort8889.com/upload/files/zexerinilugulemotigu.pdfIn PDF document text
- http://truhlarstvisollner.cz/data/file/vevotilugijijakivala.pdfIn PDF document text
- http://artkulinaria.pl/sites/default/files/file/79703004023.pdfIn PDF document text
- http://nakloboucku.cz/uploaded/file/tepopitobe.pdfIn PDF document text
- http://lednotice.com/userData/board/file/fuzefejedejumun.pdfIn PDF document text
- http://bbmeti.it/userfiles/files/befefamalir.pdfIn PDF document text
- https://www.harnoordesigns.com/wp-content/plugins/super-forms/uploads/php/files/d04b0c35c5cd1546e1c6e255a3f3b497/mekabas.pdfIn PDF document text
- http://straub-online.ch/userfiles/files/33292107174.pdfIn PDF document text
- http://stinpo.com/ckfinder/userfiles/files/84434463881.pdfIn PDF document text
- http://medianet2000.net/amm_prod/image_news_popup/file/vifagatusolap.pdfIn PDF document text
- https://phase1acoustics.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614d629d1021b---vekuwumote.pdfIn PDF document text
- http://jujucuisine.com/userfiles/file/9899970447.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=the+onania+club+releasePDF link annotation
- 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_off0000dd91.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD91 | 18596 bytes |
SHA-256: 05aebf58662d6f5572f4c76aba17cdfe11d72f9a6e46d288e6c18f9d0d1960c3 |
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font_01_sfnt_off00010e3f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E3F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012656.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12656 | 10432 bytes |
SHA-256: 823b7153540deb39cbde31588e10945916c15f750a37f250aafba8e0f9e97d88 |
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