MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link farm pointing to multiple compromised websites, suggesting an attempt to distribute malicious files. The ML classifier and ClamAV detection strongly indicate malicious intent. The presence of numerous PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics further supports the conclusion that this document is designed to host and distribute malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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://letajicikoberce.cz/userfiles/file/39929381104.pdf In PDF document text
- http://jn-zhsc.com/upload/74409136071.pdfIn PDF document text
- http://justsayhi365.com/uploads/file/24411570761.pdfIn PDF document text
- https://altsovmun.ru/userfiles/file/romotukutawususizid.pdfIn PDF document text
- https://www.goldenplanet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1613cfad3645da---bodogug.pdfIn PDF document text
- http://www.mousumibanerjee.com/fckimages/file/24382837352.pdfIn PDF document text
- https://thepetrichortouch.com/wp-content/plugins/super-forms/uploads/php/files/o6p402gter2gmsetvk2eludd4p/zixopojazomepuvazabifo.pdfIn PDF document text
- http://vzwsportenmuziek.com/content_docs/kineborofetewezoxomaru.pdfIn PDF document text
- http://recko.ru/ckfinder/userfiles/files/patekupise.pdfIn PDF document text
- http://fratellilongoni.com/userfiles/files/fonajarizef.pdfIn PDF document text
- http://skup-laptopow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614a470702661---jawumavadex.pdfIn PDF document text
- http://opuspointpartner.com/ckfinder/userfiles/files/42547977742.pdfIn PDF document text
- https://indoshaolinkungfusociety.com/ckfinder/userfiles/files/17173938239.pdfIn PDF document text
- https://bakwanudang.com/contents/files/32747270582.pdfIn PDF document text
- http://tinavaron.com/ckfinder/userfiles/files/23439997635.pdfIn PDF document text
- https://pfgmm.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16142096c369c3---18669022236.pdfIn PDF document text
- http://budaors.varosom.hu/userfiles/files/29200749515.pdfIn PDF document text
- http://superazs.ru/images/news/file/sisuxilavikogepewulo.pdfIn PDF document text
- https://tttinox.com/upload/userfiles/files/73529823912.pdfIn PDF document text
- http://feg.vn/uploads/files/xitulox.pdfIn PDF document text
- http://solar-makernavi.com/ckfinder/userfiles/files/keguzukimerakopikiko.pdfIn PDF document text
- http://elsped.hu/files/file/61108284153.pdfIn PDF document text
- http://asliev.coco1490.com/upload/file_folder/file/30418226664.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=review+and+download+android+gamePDF link annotation
- 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_off0000aed6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAED6 | 10520 bytes |
SHA-256: 82648829aa1fc1f3b9df75a67cb004549010c65f2f6dbf12fbe5aa3c640e5a97 |
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font_01_sfnt_off0000c687.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC687 | 16472 bytes |
SHA-256: 1c7c9255f18f5d816620d79f74dda29c4c4daff0544ae207c310fee92f3efad1 |
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font_02_sfnt_off0000f0fe.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0FE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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