MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as Pdf.Phishing.Trojan. The numerous embedded URLs, many pointing to compromised CMS upload directories, suggest a link farm designed to redirect users to malicious content. The file's structure and URL patterns are consistent with phishing or malware distribution campaigns.
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://smidgel.ru/uplcv?utm_term=two+types+of+tumors
- http://www.yourhealthyourchoice.org/wp-content/plugins/formcraft/file-upload/server/content/files/16079438b67156---jezaranasudafibobivosa.pdf
- http://bazis-expertiza.ru/ckfinder/core/connector/php/files/7780621371.pdf
- http://emeraldoutback.com/clients/f/f6/f61299a274fa8fdb0c00f5b1ed511d42/File/lidizuvumuwe.pdf
- http://rotarylaspalmas.org/documentos/file/funafixopereramiwaw.pdf
- http://porpora.info/imagenes/imagenes_contenidos///gezimuniluruxofakado.pdf
- http://itaindustrial.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160da27673eb3a---74030538203.pdf
- https://www.truesdalepainting.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609cdc678f00f---52914629678.pdf
- http://www.sunargrup.com.tr/wp-content/plugins/super-forms/uploads/php/files/hm43lqqdk8s8315n738hug6uu3/worovirafuxuvad.pdf
- https://www.kiteschule-eckernfoerde.de/wp-content/plugins/formcraft/file-upload/server/content/files/160af7f67ceceb---tumolu.pdf
- https://saftanton.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1607b6930594a9---zulebagegu.pdf
- http://kurskodkb.ru/page_edit/_samples/userfiles/files/2696093822.pdf
- http://droprint.my/home/ququ4923/public_html/userfiles/file/vorojoxerukunib.pdf
- http://wsp.pl/userfiles/file/18295878230.pdf
- http://www.veronicaneal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/1609c061df07e7---8284992888.pdf
- https://www.officinadelgustoroma.com/wp-content/plugins/super-forms/uploads/php/files/06609ffa067d8d710dd26be0269109fc/86231443422.pdf
- http://lubrifianti-auto.ro/files/file/43763545682.pdf
- http://yuhongzg.com/d/files/17877920542.pdf
- https://avonsteel.com/UserFiles/file/bikuvopagito.pdf
- https://mauspro.net/upload/files/kafegokijulutepinufofab.pdf
- http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1607443b829197---wezeduzoxivexokifobufegis.pdf
- http://epoxidice.ro/mm/file/garovenedewobatulemaf.pdf
- http://mai-colle.jp/userfiles/file/42460339098.pdf
- http://www.adanakursmerkezi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b90853baf63---25594915847.pdf
- http://essuances.com/ckfinder/userfiles/files/96684671437.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_off000153bb.bin0d89d86401cd8ed4d27bfc275b745c22ddd029aede9bd384bd785ff9b3087ac5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x153BB | 10380 bytes |
font_01_sfnt_off00016b68.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16B68 | 16792 bytes |
font_02_sfnt_off0001837a.bin0968939c727c1d126de5e94aae63dd7b20631a747b37f3f6b1a3825b5c0a9e7b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1837A | 20012 bytes |
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