MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links to external websites, many of which are hosted on compromised or disposable domains, indicating a phishing or malware distribution attempt. The ClamAV detection and ML classifier strongly suggest malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a phishing lure, likely leading to further malicious content or credential harvesting.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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://coretry.ru/uplcv?utm_term=note+20+update+android+11 PDF link annotation
- http://rezidencianestor.sk/app/webroot/files/ckeditor/files/14330137731.pdfIn PDF document text
- http://golden-candies.ru/webroot/files/files/laradadirisubufurelosebin.pdfIn PDF document text
- https://ochronaskory.pl/pliki_user/File/8131684960.pdfIn PDF document text
- https://araprinter.com/ckfinder/userfiles/files/wipubusobawabawid.pdfIn PDF document text
- http://nirmalapublicschoolerumely.com/userfiles/file/fusoxuludinimoboj.pdfIn PDF document text
- http://bangladeshceramicsociety.com/uploads/editor/files/deputisisabikimapowafu.pdfIn PDF document text
- http://svadbavmoskve.com/content/xuploadimages/file/lopomomema.pdfIn PDF document text
- http://cybernet.asia/UserFiles/File/gikikarufeku.pdfIn PDF document text
- http://a-range.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16136881439a42---34226059305.pdfIn PDF document text
- http://yugreat.com/filespath/files/20210906202313.pdfIn PDF document text
- http://salt17.com/userfiles/files/59325096311.pdfIn PDF document text
- https://at2-turbo-j3t.com/contents/files/69940045436.pdfIn PDF document text
- https://mebelpozakazu.ru/wp-content/plugins/super-forms/uploads/php/files/dfedbd632bc5402e2bb15bdddba63912/rumometejozure.pdfIn PDF document text
- https://autopsrus.com/ckfinder/userfiles/files/tuzep.pdfIn PDF document text
- http://louisefarmersmith.com/admin/ckeditor/ckfinder/userfiles/files/20135731274.pdfIn PDF document text
- http://opgzvh.hr/upload/file/31286859594.pdfIn PDF document text
- https://photographerin.agency/wp-content/plugins/super-forms/uploads/php/files/q7ouj6dmmvqstovdjaqbrqf2l7/38812283340.pdfIn PDF document text
- https://ladida.asia/sporlegen/administrator/imagetempfile/jufipofufaji.pdfIn PDF document text
- http://wenfengsi.com/wfs/WebFiles/file///2021091122013441.pdfIn PDF document text
- https://daaeportrett.no/upload/file/wabuxobut.pdfIn PDF document text
- https://termoformat.md/img/files/xufumokosepen.pdfIn PDF document text
- http://cascinamana.it/userfiles/file/jabomani.pdfIn PDF document text
- https://oceanflowerhotel.com/uploads/image/files/xodaviki.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_off0000bfcb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBFCB | 10544 bytes |
SHA-256: 94aedb28567b4da0d6cd05dd79274632f1d6c18a98e4054fe8e84e7e4e37b164 |
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font_01_sfnt_off0000d801.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD801 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f013.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF013 | 17364 bytes |
SHA-256: b9a756311db57e178e3ccee1bba52dd3a6c9a84a9a106a059f460277e3c2a096 |
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