MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous embedded URLs pointing to compromised websites, likely to host phishing content or further malware. The presence of external URI heuristics and link farm indicators strongly suggests a phishing or redirection attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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://inchiriereelicopterromania.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1613067f7266b7---54033980076.pdf In PDF document text
- https://www.rath-catering.de/wp-content/plugins/formcraft/file-upload/server/content/files/16155a65449394---54046903767.pdfIn PDF document text
- https://www.alugutader.fr/ckfinder/userfiles/files/50803295662.pdfIn PDF document text
- http://wych123.com/upload/files/59078455922.pdfIn PDF document text
- http://kino-profi.com/wp-content/plugins/super-forms/uploads/php/files/360fa685e2de0d57f9ada01278a86d23/65062906021.pdfIn PDF document text
- https://turasmobilya.com/img/editor/image/file/78789963978.pdfIn PDF document text
- http://shsuorui.com/uploadfiles/fckeditor/20210912/file/16314526178806.pdfIn PDF document text
- http://findacommodity.com/upload/file/fezujutupumasutuzuzet.pdfIn PDF document text
- https://kaskad-74.ru/images/uploads/wanusimek.pdfIn PDF document text
- http://anquocrealty.com/uploads/image/files/71239443518.pdfIn PDF document text
- http://tehpromyar.ru/media/file/17525119346.pdfIn PDF document text
- https://mosconi.net/userfiles/file/28301576927.pdfIn PDF document text
- http://stellarp.com/userfiles/file/dalejoboxibigebopureroxop.pdfIn PDF document text
- http://hoangminhphatkorea.com/webroot/img/files/zazome.pdfIn PDF document text
- http://gesgo.de/userfiles/file/duxafejorekafenog.pdfIn PDF document text
- https://marcvandewiele.com/userfiles/file/90953226976.pdfIn PDF document text
- http://lg-palette.com/upload/files/sipesutabubatida.pdfIn PDF document text
- https://muzpony.de/obrazki/file/56216421482.pdfIn PDF document text
- http://anbao.vn/uploads/userfiles/file/lulonol.pdfIn PDF document text
- http://roberlo.cz/www/files/file/pilixedixi.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=do+horses+lay+eggs+or+give+birthPDF 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_off0000adf0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xADF0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c607.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC607 | 10604 bytes |
SHA-256: f53c25001625f5b77ef84bf6cd3e116cfb1d0abd1c7c46e97897a0b65721c6a4 |
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font_02_sfnt_off0000de72.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE72 | 16244 bytes |
SHA-256: f40dbff100db553618020ac1decef6767aeccac3b33eb20bf4b85e19e4682919 |
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