MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning model indicated a high probability of maliciousness. It contains numerous embedded URLs pointing to compromised CMS upload storage and disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The document body is heavily obfuscated and unreadable, but the presence of multiple external URIs and the 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic strongly indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9989
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://infrive.ru/uplcv?utm_term=o+que+posso+comer+ou+tomar+no+jejum+intermitente
- http://lindendirect.com/ckfinder/userfiles/files/54458297762.pdf
- https://harpethvalleypto.org/wp-content/plugins/super-forms/uploads/php/files/a403b4d45b09007e0b07897b5473e407/78202590139.pdf
- https://dazzlin.co.uk/wp-content/plugins/super-forms/uploads/php/files/97b81b69dc5ff46170ad0544e72a0a9c/84367914431.pdf
- http://getawaynewzealand.co.nz/wp-content/plugins/formcraft/file-upload/server/content/files/16085ad5aca55f---16488683376.pdf
- https://greyquotient.com/wp-content/plugins/super-forms/uploads/php/files/a1979ae7166ed1390ee6f4fa948bcd19/24871011534.pdf
- http://ptairsupply.com/userfiles/file/19384060766.pdf
- https://dvg.asia/ckfinder/uploadfiles/files/69826401835.pdf
- http://championshipsportsrings.com/clients/23492/File/69575861563.pdf
- https://www.paparazzirestaurant.com.au/wp-content/plugins/super-forms/uploads/php/files/18f107b6200ae88b6b0a7a48b4857a7a/36605701933.pdf
- http://firstcuwire.com/file_media/file_image/file/lafuvuketuseg.pdf
- https://microfocus-realize2020mea.com/wp-content/plugins/super-forms/uploads/php/files/3db4b81023c0f920df4375853b45f36c/39139831474.pdf
- http://localhomesales.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160a7c26c17535---58471632631.pdf
- http://nhahanghienminh68.com/upload/files/62547085147.pdf
- http://unicaconsultoriarh.com/images/files/bivepugeg.pdf
- http://www.itbaloch.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f426ce1f96---nosejokuparaka.pdf
- https://www.geosuiteonline.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c0a290cddfc---54468820331.pdf
- https://feng-shuiworld.com/userfiles/file/bezekutagulanoganixe.pdf
- http://1night2daytour.com/ckupload/files/76206049283.pdf
- http://www.hkwebdesign.com.hk/wp-content/plugins/formcraft/file-upload/server/content/files/1608d0c2ea35bb---38315531887.pdf
- https://pavaniautismschools.com/wp-content/plugins/super-forms/uploads/php/files/dpe7hgt7qu2imohdtlu51bkee2/daritem.pdf
- http://curry-box-deluxe.de/userfiles/file/39181207107.pdf
- http://www.asejnrtigers.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1609fd98c93051---2802545671.pdf
- http://maskaevlawyer.ru/userfiles/file/begin.pdf
- http://jeremypourstarlight.com/clients/5/53/539822683240d2210db56c0084569a8b/File/kalazozanelumerufegabuve.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_off0000ffa0.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFA0 | 16792 bytes |
font_01_sfnt_off000117b7.bin4114c0afdf5c27f084746ee38d73e9932c79b4442593cab55eeba70a10c07f60 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x117B7 | 10888 bytes |
font_02_sfnt_off000130db.bina625dd7b8827ce6314995ce4b177aa4d10a232cf8b831e7e9d665f1e03baecaf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x130DB | 19516 bytes |
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