MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous external URLs, many pointing to compromised WordPress sites, suggesting it functions as a link farm to distribute phishing content or malware. The PDF structure and embedded URLs are consistent with a spearphishing attachment used to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
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://oniceh.ru/uplcv?utm_term=searching+algorithms+in+data+structure+pdf PDF link annotation
- http://bellezaeimagen.com.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160c2f54acb0a5---49821931399.pdfIn PDF document text
- https://postscriptproductions.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070278a3e65d---89769495287.pdfIn PDF document text
- https://wkd-uk.com/wp-content/plugins/super-forms/uploads/php/files/65df8a570df592d94f37fc426320eb7a/gemuvoxawebukokaxuvusopi.pdfIn PDF document text
- https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160826ea0bc268---josaz.pdfIn PDF document text
- http://nakamurasangyou.jp/app/webroot/uploads/files/kipebopatawusitaju.pdfIn PDF document text
- https://www.sodigital.it/wp-content/plugins/formcraft/file-upload/server/content/files/16092fb2399f8c---vuderorulofunupixupove.pdfIn PDF document text
- http://innotec-industrie.be/userfiles/file/bazevumigorolodi.pdfIn PDF document text
- http://www.skup.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609a803c22871---17793523397.pdfIn PDF document text
- http://emannsltd.com/userfiles/4289490212.pdfIn PDF document text
- http://jhdjt.com/images/upload/File/mukatefenezifonokut.pdfIn PDF document text
- http://studiogallerani.it/userfiles/files/48982941197.pdfIn PDF document text
- http://metrocars.london/survey/userfiles/files/32266769810.pdfIn PDF document text
- http://nuraski.pl/wsg/userfiles/zudajimobowutome.pdfIn PDF document text
- http://english-life.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16070ab9cb8263---74604061120.pdfIn PDF document text
- https://a2designbg.com/userfiles/file/nubogigiduxogerel.pdfIn PDF document text
- http://josephlillianmorrisfamily.com/clients/59960/File/luxudati.pdfIn PDF document text
- http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/s3oplhm665mu3emn907skvprc2/83040523285.pdfIn PDF document text
- https://centar-znr-zop.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1607ba7cc9c94f---7172738791.pdfIn PDF document text
- http://vssteel1999.com/ckeditor/userfiles/files/pojugodumozanufovuli.pdfIn PDF document text
- https://colakcivi.com/userfiles/file/pifipusebawajinidakur.pdfIn PDF document text
- https://www.hagensmarketing.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ad6918428bf---gireralipiw.pdfIn PDF document text
- http://ehoron21.mn/uploads/files/91724680123.pdfIn PDF document text
- http://themultifold.com/wp-content/plugins/super-forms/uploads/php/files/bh7icpoj6ba4s811ereo4nq4s2/99225166153.pdfIn PDF document text
- https://www.karenlovelee.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9821ca8a7a---jalozowizelisagilanegijab.pdfIn PDF document text
- https://georgiamusicpartners.org/wp-content/plugins/super-forms/uploads/php/files/a2dd303f7842a257c88a44a05389e0b6/daravumuworu.pdfIn PDF document text
- http://oneself.pro/wp-content/plugins/formcraft/file-upload/server/content/files/160735716e31c6---kumumileron.pdfIn PDF document text
- 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_off00010330.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10330 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00011b47.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B47 | 11244 bytes |
SHA-256: dcc1f47621f2746776c40874bc069598746fc934a12a65a454c4295c768ce772 |
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font_02_sfnt_off00013539.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13539 | 18768 bytes |
SHA-256: 564cb594243daa83f63657429a4be747859907b13958e953aa52994f19e8440b |
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