MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous external URIs and link farms hosted on compromised WordPress sites, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent, classifying it as a phishing trojan. No scripts were extracted, but the embedded URLs are the primary indicators of compromise.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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://queure.ru/uplcv?utm_term=ride+captain+ride+blood+sweat+and+tears
- http://www.auditsi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073dc4d48e6f---96550296525.pdf
- http://msinternationalbeautypageant.com/clients/8/8c/8c0f0497d7166b07b5568c04be8084ca/File/31054368388.pdf
- https://energooptima.hu/upload/File/69123090334.pdf
- https://bokseinstituttet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1609da49392730---56483905576.pdf
- http://xn--dlek-5qa.com/admin/UserFiles/file/suzutexilutemaratonawiv.pdf
- https://webmodels.studio/wp-content/plugins/formcraft/file-upload/server/content/files/1606cbbaf8431b---63227449453.pdf
- https://apparel.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/08df9af9390caed2f73b4e5979f82a59/40905971032.pdf
- http://hollandunitedreunion.com/clients/5/52/52f3fdf721cdccceb566e47094f1d9de/File/dewexoronivitapubeno.pdf
- https://www.medipratik.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609d42d8c805e---40161849872.pdf
- https://ncfouting.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608703e689206---27480678977.pdf
- http://zhengfutz.com/v15/Upload/file/2021641445453998.pdf
- https://noks.cz/wp-content/plugins/formcraft/file-upload/server/content/files/1608d9f8b56565---88333523920.pdf
- https://mobistore.co.nz/wp-content/plugins/super-forms/uploads/php/files/96c021786541ad274cff4fabafcdf78b/tesatusigopiv.pdf
- http://serendipityorlando.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b8cbd852cb---28075212333.pdf
- https://ewt.cz/res/file/75635016799.pdf
- https://www.rogierstoel.nl/wp-content/plugins/super-forms/uploads/php/files/r06cdkllhat285b9pn676n7orm/85784603638.pdf
- http://discarga.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b973bdd726c---tegirujerirudebuwoje.pdf
- http://www.sandzthabapanel.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1606f571b76181---misaremagid.pdf
- http://ahcxdq.com/uploads/file/022206335173.pdf
- http://www.theflightfest.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a72dc66cb5b---26561252608.pdf
- http://kaplanpm.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c62f9d26e2---ferin.pdf
- http://bertrandetgastineaudesigners.com/userfiles/file/kubebajunutepisud.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_off0000fd32.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD32 | 16792 bytes |
font_01_sfnt_off00011544.bin3df1f64284e9b4312feb6bbd5615c100eaf4af50f28af223b8cb1989bb79db01 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11544 | 16816 bytes |
font_02_sfnt_off00014136.bindcdaf5e9573700065d14fd3c6c28333ab6ac9a274b7a3ef0fd0c313a7812679b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14136 | 10776 bytes |
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