MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was identified as malicious by a machine learning classifier and ClamAV. It contains numerous embedded URLs that form a link farm, with several pointing to compromised WordPress sites or disposable hosting. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a pattern of using such sites for SEO manipulation or to host malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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://www.coverseg.com/uploads/ckfinder/files/52949635313.pdf In PDF document text
- http://julieesteban.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139b7502a5e5---61542799568.pdfIn PDF document text
- http://jinruily.com/UploadFile/file/20210909165549052.pdfIn PDF document text
- https://www.partyshuttlebus.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1613d6f03ea581---10294464144.pdfIn PDF document text
- http://theofficefurniturestore.com/ckfinder/userfiles/files/pugejivavagolojato.pdfIn PDF document text
- https://hostsolutions.ro/app/webroot/files/userfiles/files/jodusure.pdfIn PDF document text
- http://lotuscourtpune.com/wp-content/plugins/super-forms/uploads/php/files/fa245797c02f663b6f9574dc7d411927/32174566850.pdfIn PDF document text
- http://bumsnab.ru/uploads/files/34424465830.pdfIn PDF document text
- http://pulsrmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/161391272bf1f8---80564231251.pdfIn PDF document text
- http://kodemari.info/data/files/64259524034.pdfIn PDF document text
- http://xenangheli.vn/public/files/44667832898.pdfIn PDF document text
- http://epicridesnepal.com/files/72665441217.pdfIn PDF document text
- http://www.c-l-r-p.com/admin/ckfinder/userfiles/files/xaxenetax.pdfIn PDF document text
- http://eastcity.hu/ufiles/file/83765942457.pdfIn PDF document text
- https://birutelorasin.com/contents/files/josexonumodogebuvufomere.pdfIn PDF document text
- https://futurefacesmiami.com/uploads/file/silosikezuf.pdfIn PDF document text
- https://www.auto-ecole-rive-droite.fr/ckfinder/userfiles/files/8297352101.pdfIn PDF document text
- https://polaria.cz/images/file/40106034660.pdfIn PDF document text
- http://jakpaisanestate.com/images/upload/files/pituvobativibaf.pdfIn PDF document text
- https://psychologgia.pl/Upload/file/62289115548.pdfIn PDF document text
- http://ryukatsu.com/userData/board/file/71392097356.pdfIn PDF document text
- http://starroadchina.com/userfiles/file/dasiraxavabiregez.pdfIn PDF document text
- https://sibiucuratenie.ro/fckeditor/userfiles/file/dakuzoladebu.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=use+android+as+webcam+for+pcPDF 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_off0000df9e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF9E | 10868 bytes |
SHA-256: 54c38aa66bd2e326ddb56e7ffc003ed83da48211d04dbd9f3873f629d731c59e |
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font_01_sfnt_off0000f889.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF889 | 17872 bytes |
SHA-256: a4abb88b2e84ad2216d97f21c0ebf3b51aba3ba8da731e03df6daa92d9fc55b8 |
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font_02_sfnt_off000126ac.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x126AC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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