MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file 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 WordPress sites or disposable hosting, forming a link farm. The primary purpose appears to be directing users to potentially malicious external content, leveraging a phishing or malware distribution strategy.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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 http://krevue.cz/UserFiles/File/63579302810.pdf In PDF document text
- https://trainova.com/userfiles/file/84125436517.pdfIn PDF document text
- https://jackinthegymtpe.com/uploads/files/202109080836445919.pdfIn PDF document text
- http://hoigolfbinhthuan.com/users/files/58887001802.pdfIn PDF document text
- http://caacoding.net/wp-content/plugins/formcraft/file-upload/server/content/files/1614673f10856c---37508357752.pdfIn PDF document text
- http://babijie.com/upload_fck/file/2021-9-16/20210916040306744664.pdfIn PDF document text
- https://udachi.co.th/wp-content/plugins/super-forms/uploads/php/files/0omku71upcgdtk1emkoppfc153/62399700015.pdfIn PDF document text
- https://hobbyschuurtje-webwinkel.be/images/userfiles/file/bizajolalipenu.pdfIn PDF document text
- https://clumba-indoor.ru/files/files/19082290694.pdfIn PDF document text
- http://www.520amis.com/upload/files/wusijenovumofu.pdfIn PDF document text
- http://kbchina.de/upload/xazanibawusigukureveb.pdfIn PDF document text
- http://imagespa.mx/wp-content/plugins/formcraft/file-upload/server/content/files/16145eed07fd97---85631952439.pdfIn PDF document text
- http://recrute.fr/files/files/tufulitabomanafupe.pdfIn PDF document text
- http://kfoodntea.com/dataroom/file/56437630371.pdfIn PDF document text
- http://sattosushi.com/uploads/files/xamijavuv.pdfIn PDF document text
- http://sweatrinserepeat.com/ckfinder/userfiles/files/fugopijopogizuzemefepok.pdfIn PDF document text
- http://corkpotters.com/images/xewanufubujorexijibabe.pdfIn PDF document text
- https://keralahappyjourney.com/ckfinder/userfiles/files/wopezikajamaluk.pdfIn PDF document text
- http://ad.ditroinfotech.com/laportal/ckeditor-ckfinder-integration/uploads/files/zesipulozasuwiwutilu.pdfIn PDF document text
- http://cosyromania.com/media/file/letivokisapizujepapitata.pdfIn PDF document text
- https://tanthueviet.vn/img_data/files/64935089019.pdfIn PDF document text
- https://phukienbep.net/media/files/74778965423.pdfIn PDF document text
- https://ags-car.60km.com/upload/files/tidazateditubogaduzopile.pdfIn PDF document text
- https://fidelishospice.com/ckfinder/userfiles/files/wosoja.pdfIn PDF document text
- http://preprod.app-nomads.com/ugecam/admin/ckfinder/userfiles/files/17767351345.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=app+para+medir+consumo+de+datos+androidPDF 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_off0000d661.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD661 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ee78.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE78 | 10712 bytes |
SHA-256: 63656b89497653b313de9c5c50c4a28a5bc5d9fe3b0bc5020360af1a5af0109a |
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font_02_sfnt_off00010713.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10713 | 17832 bytes |
SHA-256: 985c8a5f79eb835d6b7c0a5b635b3a34400158c265a8e065e435188630b8b764 |
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