MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics indicate it functions as a link farm, directing users to multiple external URLs, some hosted on compromised WordPress sites. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the overall structure suggests a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
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=lipase+in+food
- https://steklo-shik.ru/userfiles/file/97428783910.pdf
- http://www.predoisiasociatii.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16098f4326f6bd---rilolinovelido.pdf
- http://www.medical-psychology.gr/wp-content/plugins/formcraft/file-upload/server/content/files/16098bec46053e---dobutos.pdf
- https://www.themeshcowork.com/wp-content/plugins/super-forms/uploads/php/files/7c4e664b74fb0095685f49e8b5c22392/11030494573.pdf
- http://wirheiraten.de/images/file/40814773202.pdf
- http://www.airportlimofortlauderdale.net/wp-content/plugins/formcraft/file-upload/server/content/files/1606ca49482646---gupewazibil.pdf
- https://www.swx.global/wp-content/plugins/super-forms/uploads/php/files/8b7e5c1816d59b1f5deaba6492454d2c/16234946457.pdf
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160784ef5348c4---10461103471.pdf
- http://www.pirac.org/wp-content/plugins/super-forms/uploads/php/files/2ad7c1a65f30662e08ce598666cfe930/43133746181.pdf
- http://consoles-a-gagner.com/fckeditor/userfiles/file/kewolagugiririxapop.pdf
- https://netlandschool.cl/files/41139892767.pdf
- http://congtyvima.com/images/Download/44902894659.pdf
- https://webtraffic.ch/wp-content/plugins/super-forms/uploads/php/files/6q2sup2kvop7001hv1fmaqjeir/18306696389.pdf
- https://portsidestrategies.com/wp-content/plugins/super-forms/uploads/php/files/0157256238a3e5db416aea1b032e640f/lupigutitojade.pdf
- http://www.cargeacrew.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16078600d0189a---pukitomopirekogazafirulad.pdf
- http://english-island.pl/wp-content/plugins/super-forms/uploads/php/files/n5rl068leqriffdu13ic54dfb1/busojosat.pdf
- https://outsourcedbackoffice.co.uk/wp-content/plugins/super-forms/uploads/php/files/3a28c2c4d85e0ea9200e7a243bf000a9/5581296469.pdf
- http://vizit-k.net/uploads/editor/files/wukipemuzeratirezunobamod.pdf
- https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/5090dd2ac20c0a7485ec57d420417460/19693201178.pdf
- http://dirabrealtors.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b9f84d00d9---24010295194.pdf
- http://capesociety.ca/uploads/files/46646553529.pdf
- http://www.louthadventures.ie/wp-content/plugins/formcraft/file-upload/server/content/files/160a92696c2d81---waturavit.pdf
- http://janyska.home.pl/_mjanyska2013/fotki/file/kigibegozaxoxazebowuzaso.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_off0000f71a.bin8ff1664e34bca611a4d52b70da7dd535b0a36acd0964f18171f1c05ef4f253eb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF71A | 10204 bytes |
font_01_sfnt_off00010e11.bin2f8a0ef7f0800d92b36c4be1596da513c489aa4b0e55c5b9049e311b9201b393 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E11 | 17284 bytes |
font_02_sfnt_off00013b5d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13B5D | 16792 bytes |
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