MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a large number of links, many pointing to compromised or disposable domains, indicative of a link farm used for phishing or malware distribution. The ML classifier and ClamAV detection strongly suggest malicious intent. The document body is unreadable, but the heuristics and URLs point to a malicious link farm attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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://madang.eu/f_pds/fck/file/didebapamisatutafor.pdf In PDF document text
- http://kdwatch.net/upload/files/2021091519112468.pdfIn PDF document text
- http://shesob.com/file/files/25986593266.pdfIn PDF document text
- http://telecycling.info/files/file/risonudirowanopumodoz.pdfIn PDF document text
- http://suliaok.com/v15/Upload/file/2021992128378157.pdfIn PDF document text
- http://hattingtoemrerogsnedker.dk/userfiles/file/toturenoduner.pdfIn PDF document text
- http://www.ddd-iasi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1613213673a6f4---20993812073.pdfIn PDF document text
- http://hunting.kg/userfiles/file/tifalosezuwuruw.pdfIn PDF document text
- http://cloverdiamond.com/file/77903047453.pdfIn PDF document text
- https://spirit-legend-enterprises.com/webroot/editor-uploads/files/33577636257.pdfIn PDF document text
- https://autosofortkauf.ch/wp-content/plugins/super-forms/uploads/php/files/50lrcbk8suqmad5j89rsko4lpk/davotavowepovar.pdfIn PDF document text
- http://gsxr.hu/userfiles/file/pobof.pdfIn PDF document text
- https://mrpressconsulting.com/UserFiles/file/doraba.pdfIn PDF document text
- http://nirmalapublicschoolerumely.com/userfiles/file/liwuposuxefulifagale.pdfIn PDF document text
- http://asqcert.net/files/files/79259791746.pdfIn PDF document text
- http://fitviewer.biz/files/file/ribazo.pdfIn PDF document text
- http://xn--365-pn7mwb654m2qn.com/ckupload/files/58486085539.pdfIn PDF document text
- http://skolky.info/foto/images/file/zisopusixe.pdfIn PDF document text
- https://www.urban-quartz.co.uk/wp-content/plugins/super-forms/uploads/php/files/22ddd9b651f8ce3988946b3b6771d76b/fuxujebapavidezegurasamew.pdfIn PDF document text
- http://sictombbi.fr/ckfinder/userfiles/files/wevurufidisilejuvase.pdfIn PDF document text
- https://limberhurstgallery.com/imageuploads/file/xobotafe.pdfIn PDF document text
- http://elesi.eu/fichiers/files/61079620576.pdfIn PDF document text
- http://farmaciafoglia.eu/userfiles/files/37347565487.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=referencing+a+book+in+apa+7th+editionPDF 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_off0000d7f2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7F2 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f009.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF009 | 11012 bytes |
SHA-256: 9867d2fc16702602fb6ea2f795f84a00d6fd03ca4a7a99ae058ec8d7cc754bfe |
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font_02_sfnt_off00010938.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10938 | 17628 bytes |
SHA-256: 17d33c1c67fce46eacf0128f67bb5ca04443f1deb36d88f400150ab29fe1fa33 |
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