MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many pointing to compromised CMS uploads or disposable hosting, indicating a link farm designed to redirect users to malicious sites. The document body is heavily obfuscated and appears to be generated by wkhtmltopdf, lacking clear user-facing content but containing structural elements indicative of malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
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://majorsagilekvaros.hu/uploads/file/10884555165.pdf In PDF document text
- http://jshtextile.com/UserFiles/file///87319920066.pdfIn PDF document text
- https://wlao.on.ca/wp-content/plugins/super-forms/uploads/php/files/15b21b35f0c644e0a6dfbd9f2e0c9d42/zaxizilafakebuvonig.pdfIn PDF document text
- https://www.stamfordtaxis.com/wp-content/plugins/super-forms/uploads/php/files/49i4hi1h324ir4nlqqpqrv083q/98949482060.pdfIn PDF document text
- http://cec-intl.ru/app/webroot/files/file/7229471409.pdfIn PDF document text
- https://lawina-radom.pl/files/file/vibuxedabudinejidenuvuto.pdfIn PDF document text
- http://ural-kip.ru/admin/ckfinder/userfiles/files/80017061765.pdfIn PDF document text
- http://asbufestival.com/uploads/FCK_files/file/34769622640.pdfIn PDF document text
- http://slowjamsundays.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b262b978b77---volalimoma.pdfIn PDF document text
- https://thriveelearning.com/wp-content/plugins/super-forms/uploads/php/files/1ce65c1d37c37eb22769a5ca31931629/3952103891.pdfIn PDF document text
- http://kondicionery-domodedovo.ru/upload_picture/file/binumuxupidubejo.pdfIn PDF document text
- https://sitebyside.ru/wp-content/plugins/super-forms/uploads/php/files/a8ed648f4710a0aeea0cde64ea7c8814/jupolumosimujesijemikil.pdfIn PDF document text
- http://personnelstrategies.net/userfiles/file/80420036346.pdfIn PDF document text
- http://helloslow.com/data/userfiles/files/juxewas.pdfIn PDF document text
- https://broadstripe.com/wp-content/plugins/super-forms/uploads/php/files/1eba84828efed94634a4992727b48f6e/jilusudemomutuxikunipof.pdfIn PDF document text
- https://sportsht.com/userfiles/file/36770189688.pdfIn PDF document text
- http://beerskiboot.de/img/upload/file/lobil.pdfIn PDF document text
- https://www.lavishlook.se/wp-content/plugins/super-forms/uploads/php/files/b9fa1b6d4e7793c7b40b7b9d4db59f55/58464250750.pdfIn PDF document text
- https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/v6idjgj8a5o9o6u0qaeja5nfm3/nolotigebegebirenofesedot.pdfIn PDF document text
- https://quangcaowebsite.vn/uploads/files/votidepifusekarozix.pdfIn PDF document text
- http://bortran.com/upload/image/file/20210624113528.pdfIn PDF document text
- https://gofropack.com/wp-content/plugins/super-forms/uploads/php/files/e2898fdd93969d6ac9560cd36bdfeb0d/88151499542.pdfIn PDF document text
- https://emauto.lv/index/images/up/file/65028688642.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=continuity+equation+for+3+dimensional+flowPDF 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_off00013c35.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13C35 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00015447.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15447 | 20124 bytes |
SHA-256: 0625810c1dfa7791b409ec79256d49a3b1074c92fb46063baa4efff3475bf87b |
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font_02_sfnt_off0001899e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1899E | 11164 bytes |
SHA-256: 2a309164994011d1679ec90b0c1998d17f40a4fd98304c96849d62aeb6f9d32b |
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