MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs, many of which point to compromised CMS upload storage or are part of a link farm on disposable hosting. ClamAV detected this file as 'Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0', and an ML classifier also flagged it as malicious. The primary attack pattern observed is the use of a link farm to redirect users to potentially malicious content, consistent with phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
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 http://www.marcelasemper.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b4814605c4---33264387644.pdf In PDF document text
- https://ichapps.peaceofworld.com/ichapps/ckeditor-ckfinder-integration/uploads/files/51070488456.pdfIn PDF document text
- https://tabularasa.lv/sites/tabularasa/uploads/documents/files/lolikovededugowavevi.pdfIn PDF document text
- http://evrofurnitura.by/elax-furnitura.ru/uploads/files/rifedozegogebutuxuli.pdfIn PDF document text
- https://piphoto.tw/uploads/files/202109150309108865.pdfIn PDF document text
- http://iamsoldierfit.com/wp-content/plugins/formcraft/file-upload/server/content/files/16146b6e9b4cb0---76124681545.pdfIn PDF document text
- http://www.mtpartnersfl.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613f804ad2cfb---55673135703.pdfIn PDF document text
- https://www.benkorner.nl/admin/library/ckfinder/userfiles/files/87028973165.pdfIn PDF document text
- http://radiopoint.cz/userfiles/file/24431719782.pdfIn PDF document text
- http://werkkledingverkoop.nl/images/docman/files/linifipofilu.pdfIn PDF document text
- https://xyoaa.org/sites/default/files/files/wajom.pdfIn PDF document text
- http://kokocurry.gm/userfiles/file/13381642779.pdfIn PDF document text
- http://tsrmmessina.it/userfiles/files/rirepi.pdfIn PDF document text
- http://elsped.hu/files/file/88974219555.pdfIn PDF document text
- http://styrexon.cz/userfiles/file/82032771905.pdfIn PDF document text
- http://bertoniamministrazione.it/bertoni/public/file/kikowuwitepowukosulim.pdfIn PDF document text
- https://theipbuzz.com/images/file/xatabedagatipafimuniripir.pdfIn PDF document text
- http://vaynhe.com/upload/files/27068748595.pdfIn PDF document text
- http://bfr-bialapodlaska.pl/userfiles/file/64275968301.pdfIn PDF document text
- http://hermandadperdon.es/userfiles/file/pirafinesividof.pdfIn PDF document text
- https://aglogistics-bo.net/userfiles/file/91532819865.pdfIn PDF document text
- http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/bceca385c4df83ea59a7f13d66d8dc67/64584630588.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=top+10+wifi+hack+appPDF 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_off0000c5ec.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC5EC | 10244 bytes |
SHA-256: b817e8cd3c803329457d6e87b6007eabba64fc7fe0ae9197dabe1b2ab51457ea |
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font_01_sfnt_off0000dd2d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD2D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f53f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF53F | 16704 bytes |
SHA-256: 4163d0b17c19385c28e88b375a08c2a7dd96e1e728a6c2bb0113900c3924c6bc |
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