MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, and exhibits characteristics of a callback phishing lure. The PDF contains numerous links to other PDF files hosted on various domains, suggesting a link farm designed to obscure the true malicious intent. While no scripts were explicitly extracted, the PDF structure and heuristic firings indicate a phishing attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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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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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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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://bakotech.at/uploads/ckeditor/files/58739743942.pdf In PDF document text
- http://cableesmaltado.com/d/files/zazumobiwajexutamovijo.pdfIn PDF document text
- https://kalendarz.probik.pl/fckeditor/userfiles/file/78066395366.pdfIn PDF document text
- http://abwessex.com/uploads/files/99108154625.pdfIn PDF document text
- http://simonide.org/userfiles/file/15177098179.pdfIn PDF document text
- http://car-zone.sk/data/data/file/detezewoxilad.pdfIn PDF document text
- http://sprinter-lab.ru/content/File/sowupolik.pdfIn PDF document text
- http://sicompk.com/survey/userfiles/files/mukubened.pdfIn PDF document text
- http://www.enredmail.com/templates/files/idCliente_/file/mobepo.pdfIn PDF document text
- http://tjjjsh.com/uploads/files/83169777970.pdfIn PDF document text
- http://jedzenie365.pl/ckfinder/userfiles/files/59113702513.pdfIn PDF document text
- https://wfca-czech.cz/temp/userfiles/files/15969446686.pdfIn PDF document text
- https://trsoftyazilim.com/genelresimler/file/51923547167.pdfIn PDF document text
- http://banner-ever.com/ckImg/files/96401238889.pdfIn PDF document text
- https://gkia.org/kingkong/userfiles/files/lelowuvu.pdfIn PDF document text
- http://lnhaihui.com/userfiles/file/20210914135145_246730321.pdfIn PDF document text
- http://ipceurope.com/assets/file/98949286199.pdfIn PDF document text
- http://litho-and-co.fr/ckeditor/upload/files/79456564576.pdfIn PDF document text
- https://bselink.com/userfiles/file/22084471991.pdfIn PDF document text
- http://aqua4you.hu/userfiles/file/miviromatedajinijanijof.pdfIn PDF document text
- http://www.tsssport.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613f88b6c2f40---26097216663.pdfIn PDF document text
- http://farmina.ru/uploads/files/zefusugugijafito.pdfIn PDF document text
- https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/96b15b6686434265fa15fa7dc13e9782/boderutigipisajulovexixeg.pdfIn PDF document text
- https://universitecentrale.net/uploads/FCK_files/file/10064575619.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=voice+video+chatPDF 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_off0000c666.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC666 | 10084 bytes |
SHA-256: bab22badc243f7250b66224e9e886eaca9bca71fde39f1a204c6dc6ab2858562 |
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font_01_sfnt_off0000dd08.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD08 | 18184 bytes |
SHA-256: 4f01e093dbd810fdd740a3930b65f9c489126e1dd11f03a576b60e83112e4517 |
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font_02_sfnt_off00010c43.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C43 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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