MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was detected as malicious by ClamAV and an ML classifier. It contains a link farm hosted on a compromised WordPress site, which is a common technique for distributing malware or leading users to phishing sites. The presence of multiple unknown URLs suggests a broad distribution attempt, likely originating from a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
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.korayozelguvenlik.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137555248022---pavupenejo.pdf In PDF document text
- https://cursosadistanciayonline.com/medios/files/tevek.pdfIn PDF document text
- https://apgr.eu/UserFiles/file/14501231728.pdfIn PDF document text
- http://chizclean.ru/files/fck/file/dewisiza.pdfIn PDF document text
- http://gursakaryahukuk.com/images/file/vomavunubovijizuj.pdfIn PDF document text
- https://luxm.pl/userfiles/file/35326681802.pdfIn PDF document text
- https://cfaegaianascente.pt/portal/userfiles/files/15726762559.pdfIn PDF document text
- https://michaels-limo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c968edd590---dugomijinipovazux.pdfIn PDF document text
- http://trevelci.ru/ckfinder/userfiles/files/56646407939.pdfIn PDF document text
- http://studiobardinisrl.com/userfiles/files/tesiresetudovosipowirup.pdfIn PDF document text
- http://ziepniekkalns.lv/wp-content/plugins/formcraft/file-upload/server/content/files/161325699be35e---17436482154.pdfIn PDF document text
- https://doanhnghiepvietnam.org/img_duhoc/files/bimabezanunotarowajuz.pdfIn PDF document text
- https://mgs-on-track.com/app/webroot/userfiles/file/97083202529.pdfIn PDF document text
- http://gyliver.ru/files/files/matipi.pdfIn PDF document text
- http://laserinnsbruck.com/static/54571734095.pdfIn PDF document text
- https://www.ccs-corporation.com/ckfinder/userfiles/files/32133271952.pdfIn PDF document text
- http://tjsyjdq.com/v15/Upload/file/2021917156311041.pdfIn PDF document text
- https://www.scmsgroup.org/ckfinder/userfiles/files/lotirute.pdfIn PDF document text
- https://krassimirtaskov.com/userfiles/files/pitixaxarosokoguxez.pdfIn PDF document text
- http://fine-trading-knotwork.com/uploads/media/gutaxarojoga.pdfIn PDF document text
- https://vespaclubcagliari.com/userfiles/file/48617109973.pdfIn PDF document text
- https://kamber.dk/wp-content/plugins/super-forms/uploads/php/files/23d2f4e1408560ee369cf85a9192c65a/29318043495.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=app+to+play+music+from+android+phone+to+car+radioPDF 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_off0000e6f1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE6F1 | 11080 bytes |
SHA-256: 49bef8a1baad8b6b07d3e57b2ca6e629a3cdeb85161257f8c92db92d4459b9a8 |
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font_01_sfnt_off000100a4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100A4 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000118b6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x118B6 | 17364 bytes |
SHA-256: 769c703b207a985e0ad8c735ac0dc55d0b41412f3969e66064ed786fd3744fbb |
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