MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by multiple heuristics as a link farm, with several URLs pointing to compromised CMS uploads and disposable hosting. The ML classifier and ClamAV also identified it as malicious, specifically as a phishing trojan. The document body is heavily obfuscated and appears to be generated content rather than user-readable text, reinforcing the malicious intent of directing users to external, potentially harmful, sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9972
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://osikovo.eu/webroot/img/content/files/15292036349.pdf In PDF document text
- http://tareeapartment.com/user_img/files/11144701463.pdfIn PDF document text
- https://bda.ch/ckfinder/userfiles/files/52435802847.pdfIn PDF document text
- https://altstudio.be/app/webroot/uploads/file/13945325586.pdfIn PDF document text
- https://uslugiinzynierskie.eu/eurostyl/photos/file/69071332249.pdfIn PDF document text
- https://dla-pracownika.pl/pliki_user/File/wowot.pdfIn PDF document text
- http://trungtinjsc.vn/upload/FCK/file/65509877671.pdfIn PDF document text
- http://ohmytour.kr/FileData/ckfinder/files/20210904_38C62DA35069D6A8.pdfIn PDF document text
- http://sirinthepgroup.com/userfiles/file/67689317448.pdfIn PDF document text
- https://9ja-bet.com/userfiles/file/5687986279.pdfIn PDF document text
- https://samsungdvmklima.com/upload/ckfinder/files/telimerewarevol.pdfIn PDF document text
- http://toyotarent.tw/FileData/ckfinder/files/20210902_9748547FC8D8D74B.pdfIn PDF document text
- http://dxline.eu/userfiles/file/mafosuraxado.pdfIn PDF document text
- http://ourgans.org/userfiles/files/53730202505.pdfIn PDF document text
- http://nd-58.ru/wp-content/plugins/super-forms/uploads/php/files/1ffe46e2f5c7e859e4c1337a037a7e39/zomipudak.pdfIn PDF document text
- https://denizlihorozu.com/resimler/files/97625001485.pdfIn PDF document text
- http://www.musicmaestrodiscos.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613d1cb8e5891---bamoxidusodebejatabekubab.pdfIn PDF document text
- https://crc.creativechange.net/ckfinder/userfiles/files/lonit.pdfIn PDF document text
- https://mar3ol.com/Files/files/bejojuvumegewuzaxoburoto.pdfIn PDF document text
- http://www.reroofingbrisbaneqld.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1613d2cd4b3ae5---fatarofelevuparijitirifaw.pdfIn PDF document text
- https://wecareu.net/ckfinder/userfiles/files/959664708.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=android+voice+commands+not+workingPDF link annotation
- 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_off0000d617.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD617 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ee2e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE2E | 10892 bytes |
SHA-256: 3a4b0cf4826f6c259179463a66601a2de78c02e36bdd262ded0c7caeafc2334b |
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font_02_sfnt_off0001074b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1074B | 17664 bytes |
SHA-256: 4f5c23ff4f72612a41c711dcdb46a406f22deabc6a9cb41a0dc8350853a7938c |
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