MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, with numerous URLs pointing to compromised CMS upload storage and disposable hosting. These links likely serve to distribute further malicious content or phish for user credentials.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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://irlanc.ru/uplcv?utm_term=the+general+in+his+labyrinth+pdf PDF link annotation
- http://urgentcarepb.com/userfiles/file/xukenapusow.pdfIn PDF document text
- https://sukhayurveda.in/userfiles/file/547831279.pdfIn PDF document text
- http://brunagabriele.it/userfiles/files/sumigubefifazopegukizelo.pdfIn PDF document text
- http://krishikhabar.net/assets/ckfinder/core/connector/php/uploads/files/nazekafuviruwizuxetixaram.pdfIn PDF document text
- https://coachtourbusrental.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c1e78b8095---83469959171.pdfIn PDF document text
- https://asesoriagade.com/app/webroot/files/files/34974453079.pdfIn PDF document text
- http://specimport.by/files/files/14910614806.pdfIn PDF document text
- http://dopuskvsro.ru/UserFiles/zotutogal.pdfIn PDF document text
- https://ateliersmq.com/pevron/www/img/file/wanagiravidexogamodefa.pdfIn PDF document text
- https://rmdschoolandcollege.com/wp-content/plugins/super-forms/uploads/php/files/29ab78f857e53020954ded85f8bb781c/67484679998.pdfIn PDF document text
- http://fundacjahfg.pl/upload/file/15369489041.pdfIn PDF document text
- http://www.sunriseacademy.in/ckfinder/userfiles/files/lajirabawetavalem.pdfIn PDF document text
- http://buzmakov-ua.ru/admin/ckfinder/userfiles/files/wigofutifenun.pdfIn PDF document text
- http://zehanbiopharma.com/upload/files/68290162196.pdfIn PDF document text
- https://www.tahitotfalu.hu/ckfinder/userfiles/files/44388942010.pdfIn PDF document text
- https://inprovitvenezuela.com/ckfinder/userfiles/files/72753067934.pdfIn PDF document text
- https://fallsplat.se/bildbank/file/ditudozijisapenu.pdfIn PDF document text
- https://antoinepanau.com/wp-content/plugins/super-forms/uploads/php/files/4b1d9c9a89e328afcb85b6934b11c70a/4200372572.pdfIn PDF document text
- http://eskuvotoszkanaban.hu/editor_up/lupajomonazejibumapisido.pdfIn PDF document text
- http://fluorescent-training.com/file/badixafatezokezewaleju.pdfIn PDF document text
- http://grotech.in/userfiles/file/visogeramoxatem.pdfIn PDF document text
- https://gestionarival.com/userfiles/file/sutozijuzavi.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_off0000b189.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB189 | 10876 bytes |
SHA-256: f5fcc007619f648ffc25afcf9d73836b26791c2c30209388db562660fef43c92 |
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font_01_sfnt_off0000ca26.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA26 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000e238.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE238 | 17140 bytes |
SHA-256: 093c3139c6acbbe75a657cbd0e8c4e4f1d275a7d28d22478a84b75d180a4090c |
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