MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous external URLs, many pointing to compromised CMS uploads or disposable hosting, suggesting a link farm designed to redirect users. The presence of embedded URLs and the PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicate the document's primary purpose is to drive traffic to these external sites, likely for phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9970
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://pistant.ru/uplcv?utm_term=ph%E1%BA%A7n+m%E1%BB%81m+chuy%E1%BB%83n+%C4%91%E1%BB%95i+t%E1%BB%AB+pdf+sang+word+t%E1%BB%91t+nh%E1%BA%A5t PDF link annotation
- https://teenvolunteer.org/wp-content/plugins/super-forms/uploads/php/files/1d9ed2c4edb8026243306e26dd7dddf1/rufune.pdfIn PDF document text
- http://atrsara.ir/resource/files/rejafofefururugipusosuwux.pdfIn PDF document text
- https://getlovebooks.com/wp-content/plugins/super-forms/uploads/php/files/49ff5bc56f8dbd0a1248b0b0809348e1/fidegerejidajesimuge.pdfIn PDF document text
- http://mebelhotel.ru/userfiles/files/wotisaludat.pdfIn PDF document text
- https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c8e4cf3c979---lakumojudulaxiriki.pdfIn PDF document text
- https://xn--90ah6akb9e.xn--p1ai/f/file/mopakuzadofizudikipitujof.pdfIn PDF document text
- http://www.sandzthabapanel.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160b75a6f524cb---36453232936.pdfIn PDF document text
- http://www.leesii.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9a02046609---13356300045.pdfIn PDF document text
- http://bagpack.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/160d4fff0821d0---girimikanodivufirasof.pdfIn PDF document text
- http://jkmdc.com/aversystem.com/userfiles/file/78584018190.pdfIn PDF document text
- https://feldmann-spedition.de/pics/userfiles/file/bomugorutofevazoxa.pdfIn PDF document text
- http://sualpturizm.com/userfiles/file/jujewadiz.pdfIn PDF document text
- http://akbmodel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071e69a3b320---rupapagejodijupugoxeki.pdfIn PDF document text
- http://gintaras.cz/userfiles/file/43046626400.pdfIn PDF document text
- https://cncostruzioni.com/userfiles/file/darogewofeserodizeg.pdfIn PDF document text
- https://parklanehotel.asia/userfiles/file/lebaruwo.pdfIn PDF document text
- http://dok-vo.ru/userfiles/file/minaraxawifamamazune.pdfIn PDF document text
- http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/8uhasg6tut7e0heu7ecl4333n5/15686906333.pdfIn PDF document text
- https://floridaholidayplanner.com/wp-content/plugins/super-forms/uploads/php/files/55db7991a72e5411a56fb86162f9da70/bagelaletu.pdfIn PDF document text
- http://abwcockeysville.com/uploads/files/67148112824.pdfIn PDF document text
- http://bkdesign.ee/userfiles/file/gufajijipu.pdfIn PDF document text
- http://kotolantopeni.cz/file/22450790772.pdfIn PDF document text
- https://polnische-zaune.de/userfiles/file/delijelijuw.pdfIn PDF document text
- http://szolnokepul.hu/userfiles/file/71521789405.pdfIn PDF document text
- 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_off0000db06.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB06 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f31d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF31D | 12764 bytes |
SHA-256: 56f35d4dd1b2b1db3dece0f90222c8eeca30eb56f6ba98f3aeee150852439019 |
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font_02_sfnt_off00010f91.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F91 | 29552 bytes |
SHA-256: 4e97d2ba46a3f69ffd388837345c4edc757a1b0b28f2555c39ae625488ea8351 |
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