MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is a PDF file detected as malicious by ClamAV and an ML classifier. It contains numerous links, many pointing to compromised CMS upload directories or disposable hosting, suggesting a link farm designed to redirect users. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicates these links are likely part of a scheme to manipulate search engine results or distribute malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9912
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 http://nano-vip.com/ckfinder/userfiles/files/vokavivelaxu.pdf In PDF document text
- https://relaxationplusmn.com/wp-content/plugins/super-forms/uploads/php/files/d3a7b7f612d08b22ede16596d263a7da/17147945303.pdfIn PDF document text
- https://alajuusa.ee/media/contents/file/tozav.pdfIn PDF document text
- https://israelonthehouse.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612fbdad8bea7---papiduj.pdfIn PDF document text
- https://www.tzounakos-insurance.gr/ckfinder/userfiles/files/61331163864.pdfIn PDF document text
- https://insolite.lu/img/userfiles/files/gexokedozirep.pdfIn PDF document text
- http://ardennes.proximeo.com/ckfinder/userfiles/files/17180000188.pdfIn PDF document text
- http://xn--oy2b9bv81anouola.com/upload/file/202109291447470549.pdfIn PDF document text
- http://profil-metall.de/content/uploads/file/43971493586.pdfIn PDF document text
- http://kxnjl.com/userfiles/files/88655297483.pdfIn PDF document text
- http://secohthailand.com/file_media/file_image/file/43214576763.pdfIn PDF document text
- http://csc0451.com/userfiles/file/20211002044748_jps2yj.pdfIn PDF document text
- http://liveisagenix.com/ckfinder/userfiles/files/69114407032.pdfIn PDF document text
- https://santaclara.com/wysiwygfiles/file/betok.pdfIn PDF document text
- http://fantalife.nl/userfiles/file/4480835880.pdfIn PDF document text
- http://dominant.name/userfiles/file/vekot.pdfIn PDF document text
- https://vestol.bg/files/file/51304079481.pdfIn PDF document text
- http://le-lemniscus-incandescent.fr/ckeditor/upload/files/61186759820.pdfIn PDF document text
- http://tylincms.com/userfiles/files/jogavivunawovasire.pdfIn PDF document text
- https://vitanov.rs/files/legajovumokusujinit.pdfIn PDF document text
- https://saikekanglun.com/filespath/files/20210920091500.pdfIn PDF document text
- http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/aomjnd8rbmhcug1mv5jlvjmtq5/37974500173.pdfIn PDF document text
- https://iword.de/userfiles/file/5950045363.pdfIn PDF document text
- http://nktrading.qa/file/files/38325998998.pdfIn PDF document text
- http://geasit.it/userfiles/files/godaguxam.pdfIn PDF document text
- http://www.mondzorgvesa-voorschoten.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161429492ab801---koxupafelubotisirumaniron.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=general+form+of+quadratic+functionPDF 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_off0000ecb0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECB0 | 19072 bytes |
SHA-256: 1f08260c67d03d9a49f094bbc2237e0a6aec80f96d2a52dd0cea26ff94be24be |
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font_01_sfnt_off00011db4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11DB4 | 10752 bytes |
SHA-256: dd67e264d72c8c8107bb5718e639c2804cde5c6a297f57363338a3dc299bda37 |
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font_02_sfnt_off00013632.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13632 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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