MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of embedded URLs pointing to various domains, many of which appear to be compromised or disposable hosting. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a pattern of creating link farms on such sites. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution via these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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 https://inwebjor.ru/uplcv?utm_term=jogos+musicais+android PDF link annotation
- http://eyupsifalibitkiler.com/resimler/files/9735767843.pdfIn PDF document text
- http://faw-asia.com/image/upload/files/jegikuwusisaba.pdfIn PDF document text
- http://mingmitrcoffee.com/user_img/files/45039188345.pdfIn PDF document text
- http://ekhoron21.mn/uploads/files/42220114509.pdfIn PDF document text
- http://pcwenhua.com/uploadimg/file/16305166591834737663.pdfIn PDF document text
- http://biswasi.com/userfiles/files/vexidinopavarejoni.pdfIn PDF document text
- https://joyfool.art/wp-content/plugins/super-forms/uploads/php/files/a7cbfa5dcc2461365329fedb7f4f659d/temaw.pdfIn PDF document text
- http://alimentosldm.com/userfiles/file/talotidakijovitop.pdfIn PDF document text
- http://primeasset.hu/fileok/file/81416440616.pdfIn PDF document text
- http://b40555.handyfriendship.com/upload/files/38166720293.pdfIn PDF document text
- http://sakem.org/userfiles/files/jomiwubaw.pdfIn PDF document text
- https://bepxuyenviet.com/upload/files/30250625284.pdfIn PDF document text
- http://wisdomtours.net/upload/file/pemalanuzawitikuriranek.pdfIn PDF document text
- https://www.hungryalex.com/wp-content/plugins/super-forms/uploads/php/files/c3c3ca8702c654c4585b66e7929c24ac/70070886609.pdfIn PDF document text
- https://snapstudios.ca/userfiles/file/jubarevodenudoxonap.pdfIn PDF document text
- http://tomaszfilipczak.pl/userfiles/file/girujikaxusonelilumenid.pdfIn PDF document text
- http://bharatandcompany.in/ckfinder/userfiles/files/26158854995.pdfIn PDF document text
- https://provisionsinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612fea80d4c3d---53115293916.pdfIn PDF document text
- https://thebillionbottom.com/business_school/uploads/file/lovefe.pdfIn PDF document text
- http://jarosi.hu/files/file/zumotobo.pdfIn PDF document text
- http://jainfarms.com/uploads/duzilikagobemon.pdfIn PDF document text
- http://inteko-tula.ru/f/file/sinizabopipubilozo.pdfIn PDF document text
- http://dalnoboy.org/data/filestorage/upload/files/27758885168.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_off0000ba16.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBA16 | 17800 bytes |
SHA-256: 3cc86107e62dfa3cd4aca3201a021f261818a15f845adc69b68a4ec4339c3230 |
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font_01_sfnt_off0000e5fb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE5FB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000fe12.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE12 | 10528 bytes |
SHA-256: bb3b140656518b4739cb9c7e6361fc9c9a7ac541421b39849042577bd5601083 |
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