MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. It contains numerous links pointing to compromised WordPress sites and other domains, suggesting it is part of a link farm designed to redirect users to malicious content. The presence of embedded URLs and the nature of the heuristics indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9988
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 https://chcial.ru/uplcv?utm_term=spanish+preterite+worksheet+pdf PDF link annotation
- https://ncfouting.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607960e8447f2---ronusudakerew.pdfIn PDF document text
- http://eastendmediation.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/6624760791.pdfIn PDF document text
- https://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070b3da4eabc---desosul.pdfIn PDF document text
- http://polskienarty.pl/data/aktualnosci_imgs/file/27305320094.pdfIn PDF document text
- https://charterboatdeliverance.com/uploads/files/suvitevidibow.pdfIn PDF document text
- https://abcoegypt.com/userfiles/files/89197387996.pdfIn PDF document text
- http://granite1962.com/clients/869125/File/pelusapituzojurapilobosa.pdfIn PDF document text
- http://vtvxm.vn/userfiles/file/99769139328.pdfIn PDF document text
- http://leebyenghun.com/new/upload/board/files/5924421674.pdfIn PDF document text
- https://dianthusindustrial.com/resimler/files/danijipogemudaxokufa.pdfIn PDF document text
- https://www.golddustdental.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ddb0e2d1031---wikixapoxiwiwom.pdfIn PDF document text
- http://aiaato.com/FileData/ckfinder/files/20210713_7FC1AF74652A0B74.pdfIn PDF document text
- https://almondzwealth.com/administrator/imagetemp/file/59015901206.pdfIn PDF document text
- https://ferado.vn/userfiles/file/69338165879.pdfIn PDF document text
- http://patrick-vallot.com/upload/files/46409176940.pdfIn PDF document text
- https://wtmasonry.com/ckfinder/userfiles/files/62129248952.pdfIn PDF document text
- http://jamoncup.es/wp-content/plugins/formcraft/file-upload/server/content/files/16073db9a4cea3---89895818233.pdfIn PDF document text
- http://allseasonsart.com/uploads/fck_uploads/file/luxezijerosaloxovitup.pdfIn PDF document text
- http://www.k-24.com/wp-content/plugins/formcraft/file-upload/server/content/files/160869f07bb67f---fanigewovariremodapun.pdfIn PDF document text
- https://hostingalani.com/calisma2/files/uploads/27574304441.pdfIn PDF document text
- http://conflictfreeelectronics.com/ourprojects/chowki/UserFiles/renuka/file/petutowuva.pdfIn PDF document text
- http://www.megasaludips.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608803c989e01---riloxezelikazufuwugunejir.pdfIn PDF document text
- http://makaeximworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f4eaf31330---zekijo.pdfIn PDF document text
- http://creaorganization.com/depo/sayfaresim/file/93419950111.pdfIn PDF document text
- https://alkhairi.co.uk/wp-content/plugins/super-forms/uploads/php/files/2b971392e71e0754f28358939527c5aa/peleduwudobatu.pdfIn PDF document text
- 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_off0000cfbf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCFBF | 17236 bytes |
SHA-256: 95b82c06f25198091591288472db5545cc7294bebf22d99f286ab0ff486a65b5 |
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font_01_sfnt_off0000fca9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFCA9 | 10800 bytes |
SHA-256: ec185ff5c2c15b9ea6c14a9dc3cd04473955be727b90f0c3f0cfb77b687a4479 |
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font_02_sfnt_off00011591.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11591 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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