MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links to external websites, many of which are hosted on compromised CMS platforms or appear to be part of a link farm designed to obscure malicious intent. The ClamAV detection and ML classifier strongly indicate malicious content, likely a phishing or malware distribution lure. Although no scripts were explicitly extracted, the structure and heuristic firings suggest the PDF is designed to redirect users to potentially harmful URLs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://calmoinc.com/upload/editor/file/pufagutudojivekemud.pdf In PDF document text
- http://szyuangang.com/UserFiles/file///63021143479.pdfIn PDF document text
- https://jagamimpi.org/contents//files/57010442036.pdfIn PDF document text
- http://rolmech-strzelno.pl/Upload/file/bikikogekigaruradodisa.pdfIn PDF document text
- http://computer-rudolstadt.de/upload/file/9446992610.pdfIn PDF document text
- https://www.goldenplanet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1608075247bac5---21805559106.pdfIn PDF document text
- http://parkettes.org/clients/b/b3/b30d687fb0e6fb0c44210170e51784d9/File/18632270102.pdfIn PDF document text
- https://braviengenharia.com.br/wp-content/plugins/super-forms/uploads/php/files/mni8r12eu1d6iicu7ctf4fg736/89260489506.pdfIn PDF document text
- http://bajajsports.com/userfiles/file/55914055308.pdfIn PDF document text
- https://windfreeklima.com/upload/ckfinder/files/19615941995.pdfIn PDF document text
- http://k-yoga.org/file_upload/spaw_upload/file/20210730201652.pdfIn PDF document text
- http://sosonomo.com/ckfinder/userfiles/files/47616565394.pdfIn PDF document text
- http://nfrostov.ru/upload/files/gimenizi.pdfIn PDF document text
- https://lastcallslc.com/wp-content/plugins/super-forms/uploads/php/files/1b9af4a00efd45b1e7320538d56b90fd/11280425421.pdfIn PDF document text
- http://sherwoodonionfestival.com/ckfinder/userfiles/files/lutilubogiwurisafe.pdfIn PDF document text
- http://studionegro.net/userfiles/files/soxotifopasotakaz.pdfIn PDF document text
- http://douzonebnf.com/upload/file///80923682866.pdfIn PDF document text
- http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/160a89c0263158---saladuwepopa.pdfIn PDF document text
- http://bascobrunswick.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160c8cce3387c5---tivawujelatupopemobotoruj.pdfIn PDF document text
- https://mangonebike.com/uploads/file/puwowowazisob.pdfIn PDF document text
- https://www.ikedatosou.com/wp-content/plugins/formcraft/file-upload/server/content/files/160741f03a438b---24334466824.pdfIn PDF document text
- http://shmountaineering.co.uk/wp-content/plugins/super-forms/uploads/php/files/4tok1tgj81oor9a7qpnci481t7/pagemozetalitevejujadis.pdfIn PDF document text
- https://suprizpin.com/calisma2/files/uploads/14396900036.pdfIn PDF document text
- http://mxm-hosting.nl/img/editor/file/japulideduz.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=glibenclamida+y+metformina+pdfPDF 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_off0000c745.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC745 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000df5c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF5C | 10908 bytes |
SHA-256: c59e51c7ba5adc2cfbcc319f28edbccb9defaf78c8fc1efd8fcfe5311a859f43 |
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font_02_sfnt_off0000f856.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF856 | 17616 bytes |
SHA-256: 16c043b1b4e400b91a16f2dd1381da472862c0b39de29a9545d42ac1683ea5f4 |
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