MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of external links, many of which point to compromised WordPress upload directories or disposable hosting, indicating a link farm designed to redirect users to potentially malicious sites. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution through these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
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://catamma.ru/uplcv?utm_term=top+10+biggest+house+in+the+world PDF link annotation
- https://tanthueviet.vn/img_data/files/wiwosotedajokilut.pdfIn PDF document text
- http://mesotects.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d1cdff12004---54303618728.pdfIn PDF document text
- http://www.urbanwaterways.info/files/xanimaxofinidiluginapu.pdfIn PDF document text
- https://mavismanagement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fd5e27e09e3---kexumobopufenezimerefe.pdfIn PDF document text
- http://cpk.by/ckfinder/userfiles/files/loxorenunozer.pdfIn PDF document text
- https://ipcare.nl/wp-content/plugins/super-forms/uploads/php/files/jvh8a56pplih97g9gc5glofrrq/lavivotiselusub.pdfIn PDF document text
- http://tcyy88.com/userfiles/file/2021080901421473499.pdfIn PDF document text
- https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/jcre67f2g3nfr53mmkujrmjeit/3786202575.pdfIn PDF document text
- https://purmoradiatoriai.lt/images/files/miremefafasavilofuzu.pdfIn PDF document text
- http://rbtyutj01.com/userfiles/files/37706671611.pdfIn PDF document text
- http://slbreakingnews.com/ckfinder/userfiles/files/87161490961.pdfIn PDF document text
- https://dgaspcsm.ro/ckfinder/userfiles/files/dowinawagonowaxexigavoxo.pdfIn PDF document text
- https://www.dentaltaxpros.com/wp-content/plugins/super-forms/uploads/php/files/e5bc45cf50aa8ad7450c60e2bf5db775/19944109628.pdfIn PDF document text
- https://www.accidentinjuryalbuquerque.com/wp-content/plugins/super-forms/uploads/php/files/78v760b68ojos43kjccca453c8/90498168563.pdfIn PDF document text
- https://mamo-tato.ro/userfiles/file/97639561799.pdfIn PDF document text
- https://www.sadcmedia.com/wp-content/plugins/super-forms/uploads/php/files/0o4jrm0c0ue0l4gd9o5shhsrbq/59230366252.pdfIn PDF document text
- http://www.cenlajobinator.com/siteuploads/editorimg/file/48502074461.pdfIn PDF document text
- http://brno-skoleniridicu.cz/ckfinder/userfiles/files/xalowe.pdfIn PDF document text
- http://alhouti.com/userfiles/file/77012608692.pdfIn PDF document text
- http://www.primalegal.eu/wp-content/plugins/super-forms/uploads/php/files/6u1rce42holmj1j2jhv2fqpfv6/10868915528.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_off0000e6be.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE6BE | 10972 bytes |
SHA-256: 98489f93b2feb8dde02b8b177fe576c279f1c9867341b262d6f72f0f18689d66 |
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font_01_sfnt_off0000ffcb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFCB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000117dd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x117DD | 17612 bytes |
SHA-256: 2b50dcccd59fee811842cfdc8429105cedf39bbbe4a2ca643a71a5bba8c36a94 |
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