MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The file was detected as a malicious PDF by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm, with many URLs pointing to compromised WordPress sites and disposable hosting, suggesting a phishing or SEO manipulation scheme. The embedded URLs and the nature of the heuristics strongly suggest the document is designed to redirect users to malicious or deceptive websites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9969
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://synerhu.ru/uplcv?utm_term=how+to+increase+followers+on+instagram+app+free PDF link annotation
- https://dobre-akce.cz/media/files/file/61992357841.pdfIn PDF document text
- https://rotitelor.com/contents/files/89128979910.pdfIn PDF document text
- http://xycrusher.com/d/files/laxokibiwepajifilazawexox.pdfIn PDF document text
- https://akanaymatbaa.com/calisma2/files/uploads/mirorekaxosaxomoxuxas.pdfIn PDF document text
- https://mindweave.co.uk/wp-content/plugins/super-forms/uploads/php/files/dmalknkf4vifauvvmqsuje3jmi/66828091362.pdfIn PDF document text
- http://morebricks.com/ckfinder/userfiles/files/54239591988.pdfIn PDF document text
- http://mrspk.com/ckfinder/userfiles/files/62139934778.pdfIn PDF document text
- http://adhdesign.de/userContent/files/20210921032555-41398201755.pdfIn PDF document text
- https://libertyrealestate.in/ckfinder/userfiles/files/bovibowebojopeki.pdfIn PDF document text
- http://hcm-invoice.vn/hinhanh_fckeditor/file/67700956788.pdfIn PDF document text
- https://penzion-pod-rozhlednou.cz/img/file/zekexe.pdfIn PDF document text
- http://studiomilano.eu/userfiles/files/23100915561.pdfIn PDF document text
- https://www.zaantraining.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613726541b8cc---67953577670.pdfIn PDF document text
- https://unique-u.biz/images/uploads/file/70065906849.pdfIn PDF document text
- http://jrpst.pl/userfiles/file/dusug.pdfIn PDF document text
- https://comesa.com.pe/wp-content/plugins/super-forms/uploads/php/files/6eb4b7c8aa158b799ec0bfda2b571a37/76263533203.pdfIn PDF document text
- http://eurogeographyjournal.eu/admin/fckfiles/file/90882715066.pdfIn PDF document text
- http://all-paca.com/ckeditor/ckfinder/core/connector/php/uploads/files/giwore.pdfIn PDF document text
- https://economiadecomunion.com/ckfinder/userfiles/files/rajogarinaledakupula.pdfIn PDF document text
- http://vp-dmsh.ru/admin/ckfinder/userfiles/files/senimov.pdfIn PDF document text
- http://www.moyekolodin.com/files/6234054562.pdfIn PDF document text
- http://smart.sut.ac.th/tsme/src/lib/ckfinder/userfiles/files/warijawatekerakarot.pdfIn PDF document text
- https://sunrise-photon.com/upfiles/editor/files/vurepiwofizigedowawe.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_off00010d8b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D8B | 18416 bytes |
SHA-256: cc121abeead907b23cc73144a86dbfa93a0641f4fff21d7d1fd03ebfa28083d1 |
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font_01_sfnt_off00013d78.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13D78 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001558f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1558F | 10900 bytes |
SHA-256: f8b00193ec7e5c5398d655e033219edb37cab37017c5b431db513ac392244a46 |
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