MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing or trojan variant. It contains numerous links, many pointing to compromised CMS uploads and disposable hosting, suggesting a link farm designed to redirect users. The presence of external URIs and the overall structure indicate an attempt to lead users to malicious destinations.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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 http://zssadkowice.pl/pliki/98706012188.pdf In PDF document text
- https://drinkpoint.com/uploads/files/47966442960.pdfIn PDF document text
- http://fermobkorea.com/userfiles/file/20210903142145.pdfIn PDF document text
- https://www.entornopublicitario.com/wp-content/plugins/super-forms/uploads/php/files/445c24d46a38b77098af0ed166e123f4/10939097242.pdfIn PDF document text
- http://er-trans.com/img/produkty/files/tofebid.pdfIn PDF document text
- https://hssanesteban.cl/files/poluzupogepiw.pdfIn PDF document text
- http://idominjazz.com/fckeditor/userfiles/image/26227653340.pdfIn PDF document text
- http://moscowfashion.net/content/xuploadimages/file/661131141.pdfIn PDF document text
- https://mission4recruitment.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ee02aa1ca1---87825728488.pdfIn PDF document text
- http://www.risingstars.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1613b59831e3cf---rovegorunuwumimuxi.pdfIn PDF document text
- https://vilnius.cvzona.lt/resources/img/files/86199769454.pdfIn PDF document text
- https://whitelightdesign.com/wp-content/plugins/super-forms/uploads/php/files/49e71c226dd8f0121d34d6f321dbbd9e/86293510999.pdfIn PDF document text
- https://getadoc.in/ckfinder/userfiles/files/10218117630.pdfIn PDF document text
- https://wcfkenzi.com/ckfinder/userfiles/files/51006126090.pdfIn PDF document text
- http://niengrangchuyensau.com/upload/contentFile/file/50587396138.pdfIn PDF document text
- http://hzjksj.com/images/upload/File/46930333993.pdfIn PDF document text
- http://fractinvest.com/uploads/file/23246725826.pdfIn PDF document text
- http://www.parinet.fi/tiedostot/files/49981799815.pdfIn PDF document text
- https://esvigo.com/upload/files/24740618246.pdfIn PDF document text
- https://tomas-music.com/contents/files/8927227232.pdfIn PDF document text
- https://jingchengs.com/jingchengs/ckfinder/files/20210902055327.pdfIn PDF document text
- http://findmealocalpainter.com/insurazon/admin/userfiles/file/64172597322.pdfIn PDF document text
- http://hillsclinic.com/fckeditor/editor/filemanager/connectors/php/userfiles/file/75998696572.pdfIn PDF document text
- http://sushibelovo.ru/files/69680816344.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=save+editor+apkPDF 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_off0000cb12.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB12 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e329.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE329 | 10300 bytes |
SHA-256: 5a79097aca5b8179f7bb959a93500ded2b68fdd60abbf04fc11fa836c15e710d |
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font_02_sfnt_off0000fa7f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA7F | 19288 bytes |
SHA-256: 15b12c312b374286d4ea0fb3fd259c448c6b9cba2fa649eb74cd64de7ee52ff1 |
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