MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by ClamAV and an ML classifier as malicious, with heuristics indicating it functions as a link farm. Numerous URLs extracted from the document point to various domains, some of which are associated with compromised CMS uploads or disposable hosting, suggesting a phishing or malware distribution scheme. The presence of external URIs and link farm characteristics strongly indicates an attempt to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://re-media.ru/foto/ck/files/fumedomuluk.pdf In PDF document text
- http://ecoevopublisher.com/files/upfiles/file/mevilelokikokumubedu.pdfIn PDF document text
- http://buyyoutubesubscribers.com/ci/userfiles/files/91653437303.pdfIn PDF document text
- http://ahdongjiu.com/upload_fck/file/2021-6-27/20210627132810168997.pdfIn PDF document text
- http://mu-rrrc.com/userfiles/file/lovetudil.pdfIn PDF document text
- http://novichiha.ru/pic/file/wurejipanirurupefo.pdfIn PDF document text
- https://comodee.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d52e3d7be2---kavas.pdfIn PDF document text
- http://ehhs1969.com/clients/6/67/67a0fa02f482ea8575b7cec7429e43a8/File/42655348997.pdfIn PDF document text
- http://dom-nenilovo.ru/wp-content/plugins/super-forms/uploads/php/files/f55580ef778d9205002c36c3835b8148/fipejovajabasizawuvo.pdfIn PDF document text
- http://projectbudapest.hu/wp-content/plugins/formcraft/file-upload/server/content/files/1609d18fcda753---66945196121.pdfIn PDF document text
- http://pogotowienaukowe.com/Upload/file/govuwakuwada.pdfIn PDF document text
- http://sieckultury.pl/wp-content/plugins/super-forms/uploads/php/files/2f9db2805b919c2d61869fac50b26d30/lizafad.pdfIn PDF document text
- http://fabrykakonwersji.pl/wp-content/plugins/super-forms/uploads/php/files/073b9d47bbef34b96ea0fab760bd73d4/zonabenugepadumipazaza.pdfIn PDF document text
- https://engineeredrepinc.com/wp-content/plugins/super-forms/uploads/php/files/bd04852031b2471398808622ed63b79b/luwuvigonujatow.pdfIn PDF document text
- http://www.studiolegalefusimorelli.com/wp-content/plugins/formcraft/file-upload/server/content/files/160994b72051ab---zikevas.pdfIn PDF document text
- http://ruihuitax.com/files/file/muwutumufepiv.pdfIn PDF document text
- https://www.lipfish.no/wp-content/plugins/formcraft/file-upload/server/content/files/1606f492b711c5---33939534115.pdfIn PDF document text
- http://sashtraayurveda.com/ckfinder/userfiles/files/togonu.pdfIn PDF document text
- http://makingthegradetexas.com/clients/d/d4/d4716c73f098ea79da165a2194b6736a/File/fisipodixetof.pdfIn PDF document text
- https://www.hdcorp.com.br/wp-content/plugins/super-forms/uploads/php/files/0qlf7m0t8f6mai7grtn63r557a/41137456041.pdfIn PDF document text
- https://oneremote.ru/wp-content/plugins/super-forms/uploads/php/files/34f649eb598222e24445c982ac40e933/febufexi.pdfIn PDF document text
- http://cutencuddlybreedables.com/_images/file/52183459488.pdfIn PDF document text
- http://mdsalon.ru/img/lib/file/37374974959.pdfIn PDF document text
- https://www.birdandwildlifeteam.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077c0b79dcd0---20868784649.pdfIn PDF document text
- http://kondicionery-krasnogorsk.ru/upload_picture/file/95200547894.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=reading+practice+worksheets+for+4th+gradePDF 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_off0000e2f5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE2F5 | 17496 bytes |
SHA-256: 82e1aaeb67d1700ea62bd2b30fbb6885a5e76906d61a361c7fb85b2d44e487d3 |
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font_01_sfnt_off00011069.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11069 | 11156 bytes |
SHA-256: f704f6d796e643f87d276441f6b465e57a9099264a77c159cb7d3ef330d97b29 |
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font_02_sfnt_off00012a4f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12A4F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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