MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating it's a phishing or trojan delivery mechanism. It contains numerous embedded URLs, many pointing to compromised WordPress uploads or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The document body is heavily obfuscated and unreadable, providing no direct content-based clues.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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 http://stylekd.ru/files/6898098445.pdf In PDF document text
- http://haiphongcontest.com/images/files/45323345701.pdfIn PDF document text
- http://veitali.com/upload/files/lapavalarazajuzewilu.pdfIn PDF document text
- http://deurwater.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609dceccc8d5b---fimafara.pdfIn PDF document text
- https://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/5230fec68406308e166f92f3631af75b/vazalaravisupem.pdfIn PDF document text
- http://scouttautomotive.com/editor_uploads/system/files/xakisefarage.pdfIn PDF document text
- http://photographybynami.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f7a2b9e1ae---85124233400.pdfIn PDF document text
- https://nslogisticservice.com/userfiles/files/tiluruzotavud.pdfIn PDF document text
- http://entone.es/wp-content/plugins/super-forms/uploads/php/files/6a1b55d8a1cda4e327147d4a448a0e65/82318816473.pdfIn PDF document text
- http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/ob63ffja3pnjkpotleefuncf0a/89820775488.pdfIn PDF document text
- https://www.superioreagle.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b467b6ed9e1---64644463273.pdfIn PDF document text
- https://pearproperties.in/userfiles/file/63887537554.pdfIn PDF document text
- https://webmodeli.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ff33ced5302---kavikiratixowogeti.pdfIn PDF document text
- https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612556e44b557---41086885063.pdfIn PDF document text
- http://floralojistik.com/userfiles/file/90595212817.pdfIn PDF document text
- https://levin-dent.ru/wp-content/plugins/super-forms/uploads/php/files/5b597149e59a1254d2e5094e84e97b8a/98418578778.pdfIn PDF document text
- http://infrabud.eu/fckpliki/file/12483594563.pdfIn PDF document text
- http://maekalocal.com/Maeka/UserFiles/File/wupotedamanogogavofulew.pdfIn PDF document text
- https://szaniterplaza.hu/ckfinder/userfiles/files/nowufakuxedibulaz.pdfIn PDF document text
- http://www.alex-vasilkov.ru/images/wisdom/file/repotuleb.pdfIn PDF document text
- https://mmszke.hu/files/file/95533042681.pdfIn PDF document text
- http://111-orte.de/testarea/cwsCMSlight/media/files/6646351331.pdfIn PDF document text
- https://www.rogierstoel.nl/wp-content/plugins/super-forms/uploads/php/files/mch4uni8ctfi6iqg386a3i0eaa/mulafuvipagejanigifugum.pdfIn PDF document text
- http://jonkmp.nl/img/cms/file/31878975079.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=molecules+and+their+interaction+relevant+to+biology+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_off0000be4a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBE4A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d661.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD661 | 11312 bytes |
SHA-256: 0fc4698b826e55e9417c89b2e2088f01f55830e1ab2f6926c7de9bc07a97d73a |
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font_02_sfnt_off0000f084.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF084 | 15780 bytes |
SHA-256: ff7b35037819685b7dc4a255524af1db35cabf76228da110a5ec60395557046d |
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