MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier. It contains numerous embedded URLs, many pointing to compromised CMS upload directories, and is described as a link farm on disposable hosting. The primary URL, 'https://infrive.ru/uplcv?utm_term=on+eagles+wings+piano+sheet+music+pdf', suggests a lure related to sheet music, likely to redirect users to a phishing or malware site. No scripts were extracted, but the structure and URL patterns are indicative of a phishing or credential harvesting campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9840
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://infrive.ru/uplcv?utm_term=on+eagles+wings+piano+sheet+music+pdf
- http://cbcom.fr/ressource/site-image/files/2719439662.pdf
- http://baugeraeteverleih.de/benutzerdateien/18354254483.pdf
- https://militarynetwork.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16129028a54701---84644733202.pdf
- https://www.lipfish.no/wp-content/plugins/formcraft/file-upload/server/content/files/160a0d0d83e383---45301564182.pdf
- https://phoenixknights.co.uk/wp-content/plugins/super-forms/uploads/php/files/8e6469785b500b12417cc57a6e667d90/kufefavobilunisosunenasop.pdf
- http://ideas4mypool.com/userfiles/file/reliximenovotera.pdf
- http://goodwill.pl/userfiles/file/2008698467.pdf
- https://mebelpozakazu.ru/wp-content/plugins/super-forms/uploads/php/files/bb5d9fbd864a6c71748638d63afd6570/mubokipevaliboxopa.pdf
- http://willtorock.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f1b8ab719e9---78126491274.pdf
- https://segurodegranizo.ar/noticias/fckeditor/file/mobifaxowijo.pdf
- http://majortaylorride.info/images/uploaded/file/govuguxeni.pdf
- https://deepex.hu/hirek/files/31938774067.pdf
- https://italvaping.com/file/59055693571.pdf
- https://www.okcfarmersmarket.com/wp-content/plugins/super-forms/uploads/php/files/c303430ae0c98fce1f69087b3c8b9327/runumefudokutusegusu.pdf
- https://camgloberealtor.com/userfiles/file/gopetalej.pdf
- http://aarogyamedico.com/userfiles/file/puduxef.pdf
- http://omniatel.it/wp-content/plugins/formcraft/file-upload/server/content/files/160751c67b37fd---69935285114.pdf
- https://blackknowledge.com/wp-content/plugins/super-forms/uploads/php/files/c2a08e4086d71051aa375da17a234bcb/duxizi.pdf
- http://analogsys.com/uploaded/file/138655416160f4de566ddfc.pdf
- https://pinpointfeedtech.com/ckfinder/userfiles/files/63631751712.pdf
- http://sklepjola.pl/userfiles/file/tixofupuj.pdf
- http://cbgnfinance.com/userfiles/file/gibukelifabibiseluf.pdf
- https://sts-cct.com/app/webroot/userfiles/files/kebepizimesuj.pdf
- https://searchlink.org/userfiles/file/32317931226.pdf
- http://inventory-acepipe.com/images/uploads/files/rajisodotezegafurozinosew.pdf
- https://hoffmanowska.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160a730705c4b8---woregexabusuraxolipibo.pdf
- 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_off0000c0b6.bin958ea8954ac61fccf0d992e1dfe25f6d9e8fc693b2d3688731b2974d0611db4b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC0B6 | 17100 bytes |
font_01_sfnt_off0000ec6d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC6D | 16792 bytes |
font_02_sfnt_off00010484.binb4b9180b0bef8d5b417ddff6591942b2e8d52fbc314c0149707479d83ead6722 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10484 | 11180 bytes |
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