MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is a PDF file identified as malicious by ML classifiers and ClamAV. It contains numerous links, many pointing to compromised CMS upload storage and disposable hosting, suggesting a link farm or SEO spamming attack. The embedded URLs and the nature of the heuristics indicate an attempt to redirect users to potentially harmful content or phishing sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://imagebeaute.fr/userfiles/file/rumevupo.pdf
- http://pnktools-th.org/ckfinder/userfiles/files/didilax.pdf
- https://spotiverify.com/ci/userfiles/files/4423612227.pdf
- https://regenerativetherapyforpain.com/wp-content/plugins/super-forms/uploads/php/files/dd25206c9858778ea5382445e51e1538/11713942231.pdf
- https://www.horisunmauritius.com/wp-content/plugins/super-forms/uploads/php/files/7ec60c87537bb45f3bcb5290d7cad36a/38475063420.pdf
- https://luckyfood.itweald.com/uploads/files/613bf5bddca36.pdf
- https://kclandscapes.com/ckfinder/triplebuserfiles/file/75201250013.pdf
- https://gresathouse.com/wp-content/plugins/super-forms/uploads/php/files/0bb227637ce6511f75c123e11c40108c/tedamirepomusapes.pdf
- http://drinkandshrink.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613b263870ec9---59389157306.pdf
- http://easternhoteljeju.com/FileData/ckfinder/files/20210907_D44B97B64CE1CCED.pdf
- https://morganmethod.com/ci/userfiles/files/pubapamix.pdf
- http://phanmemerp.vn/attachment/files/92843477795.pdf
- http://federicozucchettiarchitetto.eu/userfiles/files/40778725691.pdf
- http://africareview.in/userfiles/file/83521257156.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613247a843588---16647836573.pdf
- http://elitsatodorova.com/uploadfiles/file/mijabowanigidu.pdf
- http://msslink.ru/userfiles/files/38947415939.pdf
- http://kriosispl.com/cote_dor_import/admin/ckfinder/userfiles/files/sobivorogofefibewujutabej.pdf
- http://himalayakebab.com/shipinc/userfiles/files/46953114080.pdf
- http://cheliabinsk.realxenon.ru/uploads/files/midudir.pdf
- http://meyergarden.com/ckfinder/userfiles/files/fozeg.pdf
- http://hiroshima-teishaku.com/userfiles/file/daguvigurebuzijudoma.pdf
- http://cherryontop.pl/upload/fotki/file/59215704435.pdf
- http://3duct.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138f2fd76969---fusogifijomufoj.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=hanuman+chalisa+pdf+in+odia
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b680.bin92d7151d9c2002edf5b528e63f4daeaf8dffaab118ffefec8d5420513803a46f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB680 | 17152 bytes |
font_01_sfnt_off0000e341.bin699923451c4a39698d5d232cde072d70eda99a8b4db869059c1d432c96fc5328 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE341 | 10648 bytes |
font_02_sfnt_off0000fb50.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB50 | 16792 bytes |
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