MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many of which point to compromised WordPress sites or disposable hosting, suggesting a link farm or redirection mechanism. The presence of PDF-specific heuristics like 'PDF_URI' and 'PDF_SEO_DISPOSABLE_LINK_FARM' further supports the attack pattern of luring users to external malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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=banner+maker+2021+mod+apk PDF link annotation
- http://www.saito-ken.jp/userdata/file/42461243255.pdfIn PDF document text
- http://roland-toys.eu/userfiles/file/63815754628.pdfIn PDF document text
- https://cowichanmusicfestival.com/userfiles/file/nolokibisefonuvoxuwasoze.pdfIn PDF document text
- https://fajanav.com/aym_image/files/xanokugolukabuvakolase.pdfIn PDF document text
- https://verticala.ro/images/userfiles/dodowogo.pdfIn PDF document text
- http://launensia.cz/ckfinder/userfiles/files/15394810507.pdfIn PDF document text
- https://avigailpekelman.com/sites/default/files/file/29541499032.pdfIn PDF document text
- http://essiac.cz/UserFiles/file/kewupujub.pdfIn PDF document text
- http://allier.proximeo.com/ckfinder/userfiles/files/finonewemudejiga.pdfIn PDF document text
- https://www.hed-endo.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1613349a897a27---82743549176.pdfIn PDF document text
- http://sofia-es.tokyo/yamituki-n/uploads/files/68945604067.pdfIn PDF document text
- http://stkvn.ru/wp-content/plugins/super-forms/uploads/php/files/4476c6bd42370373f485bf83bad0abef/28728433526.pdfIn PDF document text
- http://jevades.com/aircraft/fckimages/file/lojadisaxokepezegedidup.pdfIn PDF document text
- http://fc-junajted.com/upload/datoteke/wovojikule.pdfIn PDF document text
- https://locktactyuma.com/userfiles/file/fewujaze.pdfIn PDF document text
- http://onlinepravenconsultant.com/uploads/wysiwyg/files/75996962408.pdfIn PDF document text
- https://cplastik.com/data/cms/file/mezebasawozimi.pdfIn PDF document text
- http://wasserentkalkung.at/ckfinder/userfiles/files/28906773390.pdfIn PDF document text
- https://safetyhanoi.com/userfiles/file/fakekuvofokasu.pdfIn PDF document text
- https://angkalaris.com/contents/files/pidesazadopepeziw.pdfIn PDF document text
- https://freshchannels.com/home/sites/freshchannels/public_html/ckfinder/userfiles/files/73165364809.pdfIn PDF document text
- http://trainternational.in/wp-content/plugins/formcraft/file-upload/server/content/files/1614478e901055---39632477486.pdfIn PDF document text
- http://www.perchegouet.com/ckfinder/userfiles/files/48450612383.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_off0000c256.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC256 | 10588 bytes |
SHA-256: 3bf906b86024370b3f642f59d88056b51f0fd195c6554dc5c92ec2968036c4e1 |
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font_01_sfnt_off0000da7f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA7F | 17028 bytes |
SHA-256: a6d6a510e12248759c2bc83dca0dee161fddff83b36bc116ca40b6a2395c0abc |
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font_02_sfnt_off0001062c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1062C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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