MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous external links, many pointing to disposable hosting or compromised CMS uploads, suggesting a link farm designed to redirect users to malicious sites. The presence of multiple PDF_URI and PDF_SEO_DISPOSABLE_LINK_FARM heuristics further supports this.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
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://wastran.ru/uplcv?utm_term=hungry+shark+world+old+version PDF link annotation
- http://synhbio.com/upload/files/88525805961.pdfIn PDF document text
- http://vers-ma.de/userfiles/file/55505542698.pdfIn PDF document text
- http://czechdidgeridoo.com/admin/upload/file/59054903840.pdfIn PDF document text
- http://gbfrjournal.org/pds/userfiles/files/53481030907.pdfIn PDF document text
- http://aligokdemir.com/resimler/files/15528661614.pdfIn PDF document text
- https://kalimati.in/userfiles/file/8325416166.pdfIn PDF document text
- http://enslev-anlaegsservice.dk/userfiles/file/96026684346.pdfIn PDF document text
- http://trips-in.com/ckupload/files/fupemapuwowurez.pdfIn PDF document text
- https://harshahometutors.com/uniformkontakt/userfiles/image/files/gumumixafepojifigeg.pdfIn PDF document text
- http://llux.vn/uploads/files/giwopaxivelivafanaruv.pdfIn PDF document text
- http://be-now.pl/userfiles/file/11401081835.pdfIn PDF document text
- http://allier.proximeo.com/ckfinder/userfiles/files/gonogilujorabobup.pdfIn PDF document text
- http://sakuragiramenandsushi.com/uploads/files/51708749498.pdfIn PDF document text
- https://trainova.com/userfiles/file/kekimeped.pdfIn PDF document text
- http://chrisnoblelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/59820171720.pdfIn PDF document text
- http://acmemask.com/upfiles/editor/files/bovileda.pdfIn PDF document text
- https://www.sblending.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16144e685a9857---revep.pdfIn PDF document text
- https://bisnismedsos.com/userfiles/file/53093351910.pdfIn PDF document text
- https://gauravkankariya.com/wp-content/plugins/super-forms/uploads/php/files/6500c65a2552608acf70211b90935156/87382244564.pdfIn PDF document text
- https://wcdt.co.th/wp-content/plugins/super-forms/uploads/php/files/lmici05hf95auu73lfjl2b9l00/nanoganuzedabe.pdfIn PDF document text
- https://www.sistemkabin.com/ckfinder/userfiles/files/zafukosotujirefogiliva.pdfIn PDF document text
- https://steklo-shik.ru/userfiles/file/senegi.pdfIn PDF document text
- https://attackworkoutprogram.com/app/webroot/files/ckfinder/userfiles/files/nawowagizetelivob.pdfIn PDF document text
- https://alexandrapanayotou.com/web/images/static/file/1691344657.pdfIn PDF document text
- http://carrasvilla.es/uploads/files/bolibixuvejuwotuvifara.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_off0000d1e2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD1E2 | 10876 bytes |
SHA-256: d824cb0bb85ea5ccf3c44f098eff49eb9c3ca0f536e4e47399d56e7256159d50 |
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font_01_sfnt_off0000eabb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEABB | 17504 bytes |
SHA-256: 7e5c0a3eeb945bb51217c1d62e7a451833acca933133c0e18286c1484281ef74 |
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font_02_sfnt_off0001187e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1187E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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