MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains a link farm with numerous URLs pointing to compromised or disposable domains, likely intended to redirect users to malicious content. The PDF structure itself appears to be a link farm, as indicated by multiple heuristics.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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://biocenfis.es/uploads/assets/file/92037463288.pdf
- https://812423.qqtogeljackpot2.com/contents/files/jorudezarumimelogodujitu.pdf
- http://szpitalstrzelin.pl/userfiles/files/gerul.pdf
- http://d2dgroup.net/upload/files/86862884081.pdf
- http://www.restorationservice.ca/wp-content/plugins/formcraft/file-upload/server/content/files/161354b51ee9c3---robasijidibod.pdf
- https://member-amz-seller-system.de/wp-content/plugins/super-forms/uploads/php/files/4aa06ba03fe70d27f27ca8e7e13857c9/tenovewuzubokalaxaw.pdf
- https://beta.nhatthiengroup.com/files/uploaded/files/63296604386.pdf
- http://abwingssuffolk1.com/uploads/files/5791282094.pdf
- https://alariel.be/userfiles/file/xireluxosagovoxi.pdf
- http://101-games.ru/images/uploads/files/19515866782.pdf
- https://xuantruongtech.com/images/ckeditor/files/lozad.pdf
- https://viettrungson.com/media/Files/5346026199.pdf
- https://leeleather.net/userfiles/file/404946703.pdf
- http://stjconsulting.it/userfiles/files/lawidurebulamegas.pdf
- http://olympusflights.com/files/files/4221551690.pdf
- http://romengo.com/ckfinder/userfiles/files/98367972006.pdf
- http://ldkxzzs.com/images/userfiles/file/musoxog.pdf
- https://didaktika.drmix.cz/uploads/files/sofuta.pdf
- http://td-mg.ru/uploads/files/luvufewab.pdf
- http://abwjefferson.com/uploads/files/kazavolidokijokavu.pdf
- https://doellefjelde-mussemarked.dk/images/newsmail/file/79976522143.pdf
- https://clinicamanila.com/ckfinder/userfiles/files/2549438268.pdf
- http://matrixuniverzum.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1613fcb53ce422---21875109375.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=multiplayer+sex+games+for+android
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000eaf0.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEAF0 | 16792 bytes |
font_01_sfnt_off00010302.bin75deb8c9d85d7a502fe2b5a2bda4deefb008286e326e028ab5fa20535d5a1f16 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10302 | 16664 bytes |
font_02_sfnt_off00012dfe.bina372a3fbd7d7081659158adf197b0b7b33e1770d27c8867799ee1776685a8832 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12DFE | 11152 bytes |
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