MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which point to compromised or disposable hosting. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates the document is designed as a link farm, likely to redirect users to malicious sites. The ClamAV detection and ML classifier strongly suggest malicious intent, consistent with phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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=can+you+get+live+wallpapers+on+iphone+se PDF link annotation
- http://cps-mbstu.edu.bd/app/webroot/js/ckfinder/userfiles/files/1864218049.pdfIn PDF document text
- http://tinavaron.com/ckfinder/userfiles/files/15150520544.pdfIn PDF document text
- https://scalper.ir/data/files/file/61219448964.pdfIn PDF document text
- https://grafconsulting.pl/Upload/file/ripugujanuzabosajelame.pdfIn PDF document text
- http://alocainghien.com/uploads/userfiles/file/fujijukad.pdfIn PDF document text
- https://roarmysecurity.ro/mm/file/patomi.pdfIn PDF document text
- https://hmradiatoriai.lt/images/files/xowugufuguvozepalit.pdfIn PDF document text
- https://www.nobleorthodontic.com/wp-content/plugins/super-forms/uploads/php/files/61e5d2bfc2c7d5b472269aca84d606de/59812827844.pdfIn PDF document text
- http://www.itbaloch.com/wp-content/plugins/formcraft/file-upload/server/content/files/161395c33a73f9---7517342727.pdfIn PDF document text
- https://castilloexterior.net/ckfinder/userfiles/files/26616925705.pdfIn PDF document text
- https://irisapp.cn/uploadfiles/fckeditor/20210911/file/16313042473476.pdfIn PDF document text
- http://extreamtuning.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16132dd7eaa4c9---33653376547.pdfIn PDF document text
- https://penmypoem.com/new/admin/uploadfiles/file/58925557598.pdfIn PDF document text
- http://formpart.com/upload/ckfinder/files/12560197689.pdfIn PDF document text
- http://katour.ru/admin/ckfinder/userfiles/files/28539772423.pdfIn PDF document text
- https://comfort8889.com/upload/files/bafapogevuvagamipeliv.pdfIn PDF document text
- https://ceccargiurgiu.ro/userfiles/file/zawawinevebovudezerimodi.pdfIn PDF document text
- https://bczenekar.hu/files/file/26384219393.pdfIn PDF document text
- http://defhjdr.friend-match.com/upload/files/3968232794.pdfIn PDF document text
- http://discus-rus.ru/upl/file/bilabozaf.pdfIn PDF document text
- https://trichynext.com/wp-content/plugins/super-forms/uploads/php/files/34919724771858f6ce072fd54f2d68be/baferobejalawazajobek.pdfIn PDF document text
- https://zagi.hr/files/44077711593.pdfIn PDF document text
- http://szilasfood.hu/pic_upload/files/8003637115.pdfIn PDF document text
- http://bestofbeer.ru/ckfinder/userfiles/files/kozunugowupokoluxuj.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_off0000c397.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC397 | 10928 bytes |
SHA-256: 3f5c193b3ce4180f6581c68f6af8b520be4a23a23869ba66b84ab015e5b6c61f |
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font_01_sfnt_off0000dcf7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDCF7 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f509.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF509 | 16812 bytes |
SHA-256: 8ad784819550d91d7ca98648790fdb91b435d89fe88ee3f16cd765df5c4616a9 |
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