MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The presence of numerous external URIs, many pointing to PDF files, suggests a link farm designed to redirect users. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' specifically highlights the nature of these links, indicating a tactic to obscure the ultimate destination, likely an APK download lure as suggested by the 'utm_term' parameter in one of the URLs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9912
Heuristics 5
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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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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://ketchas.ru/uplcv?utm_term=apk+download+latest+version PDF link annotation
- https://haysalon.com/public_html/userfiles/file/nalerimisavajixuz.pdfIn PDF document text
- https://autonoleggioassereto.com/file/68774615090.pdfIn PDF document text
- http://zhongjiukeji.com/upload_fck/file/2021-9-3/20210903121830801464.pdfIn PDF document text
- https://villanakarin.com/userfiles/files/10065348892.pdfIn PDF document text
- http://dvg.asia/ckfinder/uploadfiles/files/sepefoselizojig.pdfIn PDF document text
- https://muguet.fr/sites/default/files/file/dikepup.pdfIn PDF document text
- http://dalhousieretreat.com/cote_dor_import/admin/ckfinder/userfiles/files/64840234344.pdfIn PDF document text
- http://lindendirect.com/tempimg/file/rugovaloxed.pdfIn PDF document text
- https://smshealthcareservices.com/ckfinder/userfiles/files/kenovebixizetusavamawibaj.pdfIn PDF document text
- http://bradhelferlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/rorafaketasepubefewolizu.pdfIn PDF document text
- http://isspskola.lv/userfiles/files/gapisoromibemofavine.pdfIn PDF document text
- http://sp2wronki.pl/fotki/fotki/file/76174847266.pdfIn PDF document text
- http://jr.ac.th/ckfinder/userfiles/files/15553951415.pdfIn PDF document text
- http://kondicionery-elektrostal.ru/upload_picture/file/47311989813.pdfIn PDF document text
- https://alate.org/admin/fckeditor/editorfile/11968174091.pdfIn PDF document text
- http://emploi.nat.tn/ckeditor/ckfinder/userfiles/files/dagovefumube.pdfIn PDF document text
- http://www.loockuniformes.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/16132e59b9f8c0---30168455531.pdfIn PDF document text
- http://www.webtony.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613275f0544d2---27849532629.pdfIn PDF document text
- http://indcms.testingmachines.com/images/file/96094711722.pdfIn PDF document text
- http://scenekunstskolen-efteruddannelsen.dk/ckfinder/userfiles/files/lazamirowebasoj.pdfIn PDF document text
- http://3bbb.fr/ckeditor/upload/files/76115773490.pdfIn PDF document text
- http://embeddedhr.com/ckfinder/userfiles/files/tafaxogekew.pdfIn PDF document text
- http://www.louthadventures.ie/wp-content/plugins/formcraft/file-upload/server/content/files/16136a42bed994---74211012050.pdfIn PDF document text
- http://hengtongrongshang.com/jingkelun/userfiles/files/20210901052638.pdfIn PDF document text
- https://newegys.egyseg.eu/ckfinder/userfiles/files/sutetiwalofixenidesobelu.pdfIn PDF document text
- https://studybrilliant.online/app/webroot/img/userfiles/file/71139378772.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_off0000ed4c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED4C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010563.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10563 | 10608 bytes |
SHA-256: 91d239b47b9ab198aa12815ada480234c0f1c3708530665545aeb6e03672c1ce |
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font_02_sfnt_off00011ddf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11DDF | 19396 bytes |
SHA-256: 0eaaa33dc9f53cac169cc0418ebcd663c0046e41f67d986c8671cb4b85fd69e8 |
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