MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs that point to compromised CMS uploads and disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The presence of these links and the overall detection indicate an attempt to exploit users through deceptive content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
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://krisoc.ru/uplcv?utm_term=how+to+get+unlimited+minecoins+in+minecraft+pe PDF link annotation
- https://thokhoavietnam.com/upload/files/20073642529.pdfIn PDF document text
- http://abwpetersburg.com/uploads/files/36044276141.pdfIn PDF document text
- http://unstitchedfootwear.net/files/file/98344460083.pdfIn PDF document text
- https://sealordhotels.com/ckfinder/userfiles/files/56301760241.pdfIn PDF document text
- https://smarttactic.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16142b993b9721---gilitiwofetomifonusasexu.pdfIn PDF document text
- http://salonmysliwskirys.pl/userfiles/file/farotegub.pdfIn PDF document text
- http://unternehmensberatung-hegenbarth.de/userfiles/file/73097001272.pdfIn PDF document text
- http://poliinc.com/upload/files/95744058651.pdfIn PDF document text
- http://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/2f540950ee6d2f705fb8aad2db391142/29954265443.pdfIn PDF document text
- https://doanhnghiepvietnam.niengiamdoanhnghiep.vn/img_duhoc/files/xirob.pdfIn PDF document text
- http://ferrocom-spb.ru/userfiles/files/15471154939.pdfIn PDF document text
- http://ckm-machinery.com/userfiles/files/68751308091.pdfIn PDF document text
- http://dongduong.net/Images_upload/files/76881105557.pdfIn PDF document text
- http://rancholasmonturaspremios.com/campannas/file/dukufobafukite.pdfIn PDF document text
- http://zekejozsef.eu/FCKfeltoltott/file/paxatemujoma.pdfIn PDF document text
- https://stayinbranson.com/ckfinder/triplebuserfiles/file/87557086001.pdfIn PDF document text
- http://okmarin.ru/userfiles/file/xifet.pdfIn PDF document text
- https://www.mozartcantat.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1612efe1a7d063---sekogodi.pdfIn PDF document text
- http://carnavaldemarbella.com/Senegal_5/Content/files/userfiles/file/puxazelima.pdfIn PDF document text
- http://thewhitmerlawfirm.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/benij.pdfIn PDF document text
- https://118highschool.am/wp-content/plugins/super-forms/uploads/php/files/6ba0539094e41a9599778be685adebfc/91140192333.pdfIn PDF document text
- https://livresdarts.com/ckfinder/userfiles/files/mefemakiw.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_off0000d217.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD217 | 17324 bytes |
SHA-256: a1a1e9192e49bc6927334a13b11be252010d66f93847c99cd014dab9456af828 |
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font_01_sfnt_off0000fea7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFEA7 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000116be.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x116BE | 11140 bytes |
SHA-256: b8f22872a9fd69eae0b4bcf8da5da7ffce18747341bfec77935cf8b4f9a19b8d |
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