MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by multiple heuristics, including ML classifiers and ClamAV, indicating malicious intent. It contains numerous embedded URLs that form a link farm, with several pointing to compromised WordPress sites. The primary purpose appears to be redirecting users through a chain of links, likely to deliver a malicious payload or conduct phishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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://catamma.ru/uplcv?utm_term=unity+android+fps PDF link annotation
- http://ophirtonhotel.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1613bdbf394e17---56736037301.pdfIn PDF document text
- http://tythb.cn/uploadfile/files/546403935.pdfIn PDF document text
- https://smobiil.eu/userfiles/files/zedet.pdfIn PDF document text
- https://tdfstore.it/file/fonifuzelomi.pdfIn PDF document text
- http://photo-preiss.com/upload_files/files/lexetonawuxop.pdfIn PDF document text
- http://www.afamaresme.org/wp-content/plugins/formcraft/file-upload/server/content/files/161362a4625c0a---82068217366.pdfIn PDF document text
- http://chono.mn/uploads/userfiles/files/98698115136.pdfIn PDF document text
- https://www.borzabadi.com/ckfinder/userfiles/files/73872151877.pdfIn PDF document text
- https://varida-tech.com/ckfinder/userfiles/files/72840797172.pdfIn PDF document text
- https://yourtuscanyguide.com/wp-content/plugins/super-forms/uploads/php/files/9ki3vml2bb2i72vcpscpqeapt6/54045936114.pdfIn PDF document text
- http://donahoelawfirm.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/46796816102.pdfIn PDF document text
- https://protraderin.com/userfiles/file/rodonubogokujonalejenobum.pdfIn PDF document text
- http://nc-israel.ru/upload/files/moguz.pdfIn PDF document text
- http://miskolciharsona.hu/pictures/file/96439210853.pdfIn PDF document text
- https://wonwon.taipei/photo/file/vulufirowubekekeveral.pdfIn PDF document text
- https://ganganagardentist.com/userfiles/file/nakudixezelaju.pdfIn PDF document text
- https://psychologgia.pl/Upload/file/55526138428.pdfIn PDF document text
- https://chocoinmobiliario.com/wp-content/plugins/super-forms/uploads/php/files/765770efc7c5d4da96a7b6099b2427b6/93109747042.pdfIn PDF document text
- https://www.xtremefitness.com.au/application/third_party/ckfinder/userfiles/files/zuluribexugosobelinada.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_off0000e3cf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE3CF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000fbe1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFBE1 | 18096 bytes |
SHA-256: 9330e2fc55e56a60ca267d063f76bdfbde8b2129f6a330c89a8d41f96664a0cf |
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font_02_sfnt_off00012b63.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12B63 | 10436 bytes |
SHA-256: 124f67675aed3f8f386f6627a9e3ebced241e6346978330ece64019647ff96ce |
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