MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, directing users to multiple compromised or disposable domains, likely for phishing or SEO abuse. The presence of external URIs and the PDF_SEO_DISPOSABLE_LINK_FARM heuristic strongly suggest a campaign to drive traffic to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
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://gberwanda.com/gbe/useruploads/blogs/files/rajolaxutukixamoxerateg.pdf In PDF document text
- http://barbusci.it/maisUserFile/file/34966843301.pdfIn PDF document text
- http://55pluscommunityspecialist.com/userfiles/files/2205680620.pdfIn PDF document text
- https://digireg.li/upload/lazimoduj.pdfIn PDF document text
- https://felicityokolo.com/file/gutoba.pdfIn PDF document text
- https://vinniescustoms.com/userfiles/files/bupopalatunedazodiz.pdfIn PDF document text
- http://boracayg.com/FileData/ckfinder/files/20210905_209CECA21FC4E6E2.pdfIn PDF document text
- https://treasurehunterdetectors.solar-ovens.net/ckfinder/userfiles/files/podipalevanapepemir.pdfIn PDF document text
- http://uniquehotelsolutions.com/files/others/36762950757.pdfIn PDF document text
- http://pol2-simf.ru/userfiles/file/poxaga.pdfIn PDF document text
- http://pedraferro.com/files/files/runulagodawapevudurofana.pdfIn PDF document text
- http://domgr11.ru/uploads/files/vuviveralefixegobitiduxub.pdfIn PDF document text
- https://smgbid.com/ckfinder_userfiles/files/zumedi.pdfIn PDF document text
- https://stollerco.com/testingsites/advantage_aviation/assets/media/file/gurisofifo.pdfIn PDF document text
- http://kraljicabih.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136c39875d1f---61597823220.pdfIn PDF document text
- http://orgue-chantepie.info/FCKeditor/upload/file/desenarivarivufa.pdfIn PDF document text
- https://flylights.pl/wp-content/plugins/super-forms/uploads/php/files/vbuth5tgj3e37v8dafp4l7ifvq/nufaroli.pdfIn PDF document text
- https://yourdentist.ro/app/webroot/files/userfiles/files/85609711945.pdfIn PDF document text
- http://xindeshiye.com/uploadfile/file///2021090318415728.pdfIn PDF document text
- https://veglifekc.org/wp-content/plugins/super-forms/uploads/php/files/luxurozodemajan.pdfIn PDF document text
- http://sinostandards.net/upload/files/wenafajakewetuxego.pdfIn PDF document text
- http://primeasset.hu/fileok/file/92791899986.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=solve+for+x+and+y+simultaneously+calculatorPDF 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_off0000c812.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC812 | 17900 bytes |
SHA-256: 590e434b13d0b62f5bc636e3e163ebe02ed24a086ad7ab3bbf47a8082af90f8f |
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font_01_sfnt_off0000f60e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF60E | 11096 bytes |
SHA-256: 2a670acd346d0f58553a7a725f6c8d4da17a73cb524cde606517d581bbc487dd |
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font_02_sfnt_off00010ffb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10FFB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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