MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many pointing to compromised WordPress sites, suggesting a link farm designed to redirect users to malicious content. The presence of PDF-specific heuristics like 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' and 'PDF_SEO_DISPOSABLE_LINK_FARM' further supports this. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a phishing or malware distribution lure.
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://aryaayur.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609afa9573912---vubokijobezo.pdf In PDF document text
- http://cleanyachts.it/writable/public/userfiles/file/lufowuxukixarerimijiwifej.pdfIn PDF document text
- https://noddy.nu/images/file/xesibesane.pdfIn PDF document text
- http://mlsconsulting.net/cms/files/File/fabumaw.pdfIn PDF document text
- https://tepihtrava.rs//files/78865595113.pdfIn PDF document text
- https://actor-conseil.com/files/file/83299027301.pdfIn PDF document text
- http://urotunisia.com/uploads/FCK_files/file/putedavelukorigonag.pdfIn PDF document text
- http://sushiloverca.com/uploads/files/dodonetukido.pdfIn PDF document text
- http://vipforiraq.com/userfiles/files/wurifamubededada.pdfIn PDF document text
- https://markaoyun.com/calisma2/files/uploads/fuwezomuf.pdfIn PDF document text
- http://skpizzasubs.com/uploads/files/kaserorajizukibosabewek.pdfIn PDF document text
- http://cestovni-postylka.eu/userfiles/file/281347653.pdfIn PDF document text
- http://akvatoria.by/UserFiles/files/37494559702.pdfIn PDF document text
- https://www.18fire.com/wp-content/plugins/super-forms/uploads/php/files/f0e8e1cca194e031afb04f02ef7db28c/14020845275.pdfIn PDF document text
- http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/16086eb59b10c4---lisupigexi.pdfIn PDF document text
- https://kvgrup.com.ua/wp-content/plugins/formcraft/file-upload/server/content/files/160a992d640bc5---watabukikatuzise.pdfIn PDF document text
- https://sweetestspaparty.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4f11c7e319---lugidi.pdfIn PDF document text
- http://lordbeaverbrook1973.com/clients/76835/File/70376595241.pdfIn PDF document text
- http://www.plain-pied.com/editeur/ckfinder/userfiles/files/60833087717.pdfIn PDF document text
- https://f27szerviz.hu/upload/files/97543303163.pdfIn PDF document text
- http://uptindia.com/newsimages/file///40548726456.pdfIn PDF document text
- https://baconbites.com/wp-content/plugins/super-forms/uploads/php/files/ng0q1v5kdcu0fpnhmpbk6e0i60/59350737551.pdfIn PDF document text
- https://aawyx.com/sites/default/imageuser/file/lebonibuxape.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=nursery+rhymes+book+pdfPDF 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_off0000db37.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB37 | 18972 bytes |
SHA-256: 987d79d9a6c6e06dce6edb0fbeff6f6a11b4246aa44dae6602ad349a86f99c4c |
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font_01_sfnt_off00010c40.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C40 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012457.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12457 | 10684 bytes |
SHA-256: 6e7df540158ace306499b73b58749c907fc0268814acc71ea7c5bc5fd209dbfa |
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