MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a phishing or trojan payload. It contains a link farm pointing to numerous websites, many hosted on compromised CMS uploads, suggesting an attempt to redirect users to malicious content. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic further supports the malicious intent by identifying a link farm on disposable hosting.
Machine Learning
- Nyx PDF Classifier malicious score 0.9846
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://ketchas.ru/uplcv?utm_term=class+12+chemistry+jee+notes
- https://freedomhypnosisnyc.com/wp-content/plugins/super-forms/uploads/php/files/059a7b1f04f09814c6c944c2463ad104/lefip.pdf
- http://gistfamilyreunion.com/clients/8/8c/8cbf0a40baaab9dd4734ff2cdbb1e120/File/xifukanosusenaxowapu.pdf
- http://canvangdientu.com/images/file/samilenasadikizizo.pdf
- https://master.plus/wp-content/plugins/super-forms/uploads/php/files/5db0928a438db7c7c0453e30390bb42b/14794663984.pdf
- https://flylights.pl/wp-content/plugins/super-forms/uploads/php/files/h7id0auqnut2ntr6m6kpa399mj/gowajumiwuderamut.pdf
- http://wksystems.net/HotelEstimator/userfiles/file/52089985351.pdf
- https://reflexlighting.com/wp-content/plugins/super-forms/uploads/php/files/e0e3bc3fa87e85119009e66a56f5115f/puzaj.pdf
- http://alpha-th.com/userfiles/file/29177625586.pdf
- https://hopefor.today/wp-content/plugins/super-forms/uploads/php/files/970ade15197b654f4af8d005c89186fe/lanodokis.pdf
- https://patc.fr/imagesfile/75757305842.pdf
- http://vhs1962.com/clients/b/b9/b967f936f519796c2a696a6ed1da67f9/File/mawepelonufolevudal.pdf
- http://mertlakustika.cz/images/pages/file/kipafefupozuzekeranepoz.pdf
- https://chezgregoire.fr/userfiles/xukopalejeluzujazikalaw.pdf
- https://wentworthre.com/wp-content/plugins/super-forms/uploads/php/files/ffafb4f41dac03b518844eecf7204f27/boref.pdf
- http://pinetreerealty.ca/clients/55933/File/modimalunupoluzik.pdf
- https://www.albispanaderia.com/wp-content/plugins/super-forms/uploads/php/files/a185e71b93fccaf5ac968cd101823f35/18580775742.pdf
- https://www.karenlovelee.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b33164e896---ruzokigavof.pdf
- http://portalcom-b2b.es/img/user///file/_0273836001621332592.pdf
- http://copy2d.com/ftp/image/file/budufebuz.pdf
- http://csc0351.com/userfiles/file/20210620215045_hgslh9.pdf
- https://ludifrance.fr/userfiles/file/17467406944.pdf
- http://werder-ritter.de/UserFiles/File/92627979762.pdf
- http://palaciodelosnavas.com/userfiles/file/35491442964.pdf
- https://forkidsvietnam.vn/wp-content/plugins/super-forms/uploads/php/files/a7qbk3te2pfgspcn17jl2dcccm/95531445656.pdf
- https://big-cash.de/wp-content/plugins/super-forms/uploads/php/files/f2jec44sri84k8rc08isdbfbpv/88691874445.pdf
- http://www.afamaresme.org/wp-content/plugins/formcraft/file-upload/server/content/files/1608f5a0bf1950---wudefekitudumunajelefet.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_off0000d4e5.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD4E5 | 16792 bytes |
font_01_sfnt_off0000ecfc.bin8e755bd3e6b0eb00936ef0212de09579247860d62c0b36a960574983e745af71 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECFC | 10940 bytes |
font_02_sfnt_off00010641.binabaa9ea7c434e37f88d9b974dfe841b161b936381beeae8072d905dc4eb7a4c7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10641 | 16600 bytes |
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