MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains numerous external links, many pointing to compromised WordPress sites, suggesting it's part of a link farm designed to redirect users to malicious content. The presence of these links and the overall structure strongly indicate a phishing attempt to lure victims to external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9972
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://wastran.ru/uplcv?utm_term=numericals+on+colligative+properties
- https://nhaban24h.com.vn/wp-content/plugins/super-forms/uploads/php/files/2ms4pv8dc180i77iq36mripknn/45375920251.pdf
- http://logtech.cz/foto/Image/file/sijimoverarixokeginogi.pdf
- https://www.litesourcenc.com/wp-content/plugins/super-forms/uploads/php/files/79f32a6630f8f55a140ee3dc5bf23c84/10317228770.pdf
- http://coinproject.com/userfiles/image/file/todazomenar.pdf
- http://bafiti.com/sklep/userfiles/file/mibevenafeguvazax.pdf
- http://victorylimo1.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f98464c35a3---sozugulodewufuxe.pdf
- http://www.wallisandemmanuel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d0b808c9a4---gilimojixumivomokurudeb.pdf
- https://sketchup360.vn/wp-content/plugins/super-forms/uploads/php/files/bmprdtv0dvl4gtgq0qe8vb1hjd/dunepezadulupe.pdf
- https://funkydrop.shop/wp-content/plugins/super-forms/uploads/php/files/67b4cffb5591ee9a9ae3eef4f6e4d8ac/pijuwoporuguxolodosabelen.pdf
- https://airflow-skateboards.com/userfiles/files/pemefijuguturowinu.pdf
- http://dakmet.pl/upload/vogavijusi.pdf
- https://www.sadcmedia.com/wp-content/plugins/super-forms/uploads/php/files/86s4hb7u9bfa30vi67hnrs3geq/dinawosiwixakidada.pdf
- http://www.highlandmetals.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1607836f28d584---wamewakelokajitabeguku.pdf
- https://jerseyshorepirates.com/userfiles/files/ragotopavalevokanuxe.pdf
- https://www.physioaktivkramer.de/wp-content/plugins/formcraft/file-upload/server/content/files/160718b31bae6f---tokarafe.pdf
- http://www.brennholz-heinlein.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a41ce4e3b24---62900770124.pdf
- http://samromschool.com/UserFiles/file/78003093340.pdf
- http://go-trec.com/wp-content/plugins/super-forms/uploads/php/files/tl5j39943dtn5ve3q0mlidjmn6/56079049539.pdf
- http://khiconghoixuancong.com/Khicong/admin/userfiles/file/4807278545.pdf
- https://www.okcfarmersmarket.com/wp-content/plugins/super-forms/uploads/php/files/ddb86c7b0f35dfae84cd1034a332e525/xalotawo.pdf
- http://www.lightingandhvacexpo.com/wp-content/plugins/super-forms/uploads/php/files/28031684cd5cc6db438ae7e9b2e68c2f/zujajujexib.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_off0000e0cc.binf29bc8a2163c127e983d64b52162c7559582426a92268aa9bf23c26df3f077cf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE0CC | 17500 bytes |
font_01_sfnt_off00010f1a.bin234d24dba54c46477255580cc874597b844905d84473cf86a436bdb37b514f46 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F1A | 10860 bytes |
font_02_sfnt_off00012836.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12836 | 16792 bytes |
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