MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. Heuristics identified the document as a link farm, with many embedded URLs pointing to potentially compromised or disposable hosting. These links likely serve as lures for phishing or to download further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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://materialdeestudo.top/userfiles/files/xukiwedoviri.pdf In PDF document text
- https://stotex.rs/files/jijukunuzudozozedoxesap.pdfIn PDF document text
- http://kurier48.pl/files/userfiles/file/pujiw.pdfIn PDF document text
- https://magicdiscoradio.hu/userfiles/file/61652684173.pdfIn PDF document text
- https://hunghiephuylog.com/upload/files/97902620252.pdfIn PDF document text
- https://amartzon.store/wp-content/plugins/super-forms/uploads/php/files/4c869a992d895edb53a0528b82bdc020/84732687653.pdfIn PDF document text
- http://picart-personal.pl/fckupload/upload/file/xaxubunukas.pdfIn PDF document text
- http://hcwan.com/userfiles/file/49243762924.pdfIn PDF document text
- http://ansatrans.ru/admin/ckfinder/userfiles/files/28497529422.pdfIn PDF document text
- http://rucodelniza.ru/userfiles/file/51500084715.pdfIn PDF document text
- http://www.ausafrica.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1613d602276c46---43241313394.pdfIn PDF document text
- http://www.somdattabasu.com/fckimages/file/33064319774.pdfIn PDF document text
- https://spotiverify.com/ci/userfiles/files/gawebov.pdfIn PDF document text
- https://www.histoiresdegroupes.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139dd80dd2c7---60049537466.pdfIn PDF document text
- http://elvirajogsi.hu/ckfinder/userfiles/files/tutipiwusumuru.pdfIn PDF document text
- http://bangdientunhk.com/upload/files/xisepesifidurodijomuv.pdfIn PDF document text
- https://carthink.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613de8606479a---92838859561.pdfIn PDF document text
- https://aodaixuan.vn/app/webroot/upload/image/files/34533318343.pdfIn PDF document text
- https://girilawfirm.com/content_files/files/54100985253.pdfIn PDF document text
- http://kapfenberger-schuetzenverein.at/userfiles/file/votabitej.pdfIn PDF document text
- https://sunwayhk.com/louis/STARKGROUP/ckfinder/userfiles/files/vituzul.pdfIn PDF document text
- https://corcreation.twbiz.me/data/fckeditor/files/20210903_080134.pdfIn PDF document text
- http://sochi-vitrazhi.ru/ckfinder/userfiles/files/wedeto.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=movzy+mod+apkPDF 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_off0000b628.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB628 | 18740 bytes |
SHA-256: 005aeb020e3662f58f4b594c8c2a917550608a1d1e1d108f2c5ed48e6a03b04e |
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font_01_sfnt_off0000e690.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE690 | 10140 bytes |
SHA-256: 928ff3afa797edf7246288c924720945f3f246ee0e32e4e1aac690594ffa4bdf |
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font_02_sfnt_off0000fd43.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD43 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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