MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF document flagged by ClamAV as a phishing trojan. It contains embedded JavaScript and a significant number of external links, many pointing to disposable hosting or compromised WordPress sites, suggesting a link farm intended to redirect users. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://odessawa.com/userfiles/file/27456324609.pdf In PDF document text
- https://dpengineers.info/admin/userfiles/file/bitomepojog.pdfIn PDF document text
- http://email-database.info/userfiles/file/88419665545.pdfIn PDF document text
- http://modero.vn/upload/files/lewegusebisotokatefopeve.pdfIn PDF document text
- https://gangwontaxi.com/FileData/ckfinder/files/20210905_30572B6C6BFDD40F.pdfIn PDF document text
- https://kirbas.com/img/uploaded/file/14614019073.pdfIn PDF document text
- http://awarelaxcentrum.cz/user_files/file/tetasurujowa.pdfIn PDF document text
- http://arsvet.ru/img/upload/xorobunoboloselisufobinuj.pdfIn PDF document text
- http://lignumweb.com/site/webroot/uploads/files/luneb.pdfIn PDF document text
- http://lapawan15.com/shop/fck_file/file/76655325448.pdfIn PDF document text
- https://bharatbiodiesel.com/userfiles/file/kuleriparuro.pdfIn PDF document text
- https://copperscrap.wasteequipment.net/ckfinder/userfiles/files/43607385784.pdfIn PDF document text
- http://www.detskaoptika.cz/ckfinder/userfiles/files/44180066280.pdfIn PDF document text
- http://vegasoft.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1614dc1e245067---fojeje.pdfIn PDF document text
- https://lederstuhlshop.de/ckfinder/userfiles/files/tipog.pdfIn PDF document text
- http://www.meglobalinc.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16150777a59d49---xizaki.pdfIn PDF document text
- http://www.thegrcinstitute.org/app/webroot/js/ckfinder/userfiles/files/datagajadekob.pdfIn PDF document text
- http://k1a.ru/images/files/file/binuwazof.pdfIn PDF document text
- http://www.consorcio.edu.pe/wp-content/plugins/formcraft/file-upload/server/content/files/1613e30446f7f2---42344166991.pdfIn PDF document text
- https://nceptionsolutions.com/wp-content/plugins/super-forms/uploads/php/files/20f95b919e4085236d7926f66e43b143/1527902382.pdfIn PDF document text
- http://autoscuolapezzano.it/userfiles/files/27887417553.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=how+to+share+internet+via+usbPDF 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_off0000ad7d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAD7D | 16072 bytes |
SHA-256: 9d32b4909959dd38077fe405a6dcc8dc75808d6f553aed196bbb4583b0df6ec4 |
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font_01_sfnt_off0000d6da.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD6DA | 10544 bytes |
SHA-256: b6db6a7eef2c53a19d32ef4daefebb5592ebf7eaae423204dee4fad8f374e667 |
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font_02_sfnt_off0000eee2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEEE2 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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