MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier indicating maliciousness. It contains numerous external links, many pointing to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users. The presence of embedded URLs and the nature of the heuristics strongly indicate a phishing or malware distribution attempt, likely initiated via spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9897
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://wastran.ru/uplcv?utm_term=androidx+navigation+drawer
- https://bf-pomosch.ru/wp-content/plugins/super-forms/uploads/php/files/ptubv1b4pculid8gnaq8ijtul7/26121966256.pdf
- http://budoprojekt.eu/obrazy/file/wupafokox.pdf
- http://royal-pizza.eu/files/file/22918950501.pdf
- http://yilbasipromosyonu.com/userfiles/file/32864739741.pdf
- https://yuktiedu.com/wp-content/plugins/super-forms/uploads/php/files/3a73944b4b5af1c11c0c5ee2d11ca406/kekejurolotugujuxa.pdf
- http://kajo-frings.de/userfiles/file/9629607183.pdf
- http://orthopediedelft.eu/files/59610233197.pdf
- https://tuinvandecruys.be/file/janibegezubadanokalazopuv.pdf
- http://tdsns.ru/userfiles/file/pepigunovofeme.pdf
- https://www.le-domaine-de-hauterive.fr/ckfinder/userfiles/files/93056620984.pdf
- http://millecolori.it/images/file/97066814040.pdf
- http://dglytbt.com/upfolder/e/files/20210908183624.pdf
- http://hqshop24.com/userfiles/file/zizevokinogakat.pdf
- https://takipcisec.com/calisma2/files/uploads/60087242092.pdf
- http://art-wonders.com/ckeditor/ckfinder/core/connector/php/uploads/files/sasiri.pdf
- http://galluccifaibano.com/userfiles/file/26118410.pdf
- https://binhruamuinanobac.com/wp-content/plugins/super-forms/uploads/php/files/hp4h8fs1d4o5v0mbi8ktijod5i/mebuzitifojipowuvawe.pdf
- http://alemotta.com/resources/original/file/1031015162.pdf
- http://winfielddeli.com/ckfinder/userfiles/files/xemubotolexorepiga.pdf
- http://smartraoptics.com/fck_filemanager_upload/file/rulajoritutetozivemitudul.pdf
- http://fskyok.com/uploadfile/files/porametudizufafububat.pdf
- https://dijitalsanat.link/upload/files/xasexokexotorugowomuka.pdf
- http://lisahyatthealth.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136cd8c539a3---30611728047.pdf
- http://allier.proximeo.com/ckfinder/userfiles/files/miverelivesiv.pdf
- http://food-cloud.com/home/food-cloud/www/site/site/data/files/43642678429.pdf
- http://test-immo.com/file/17868655039.pdf
- https://stollerco.com/testingsites/advantage_aviation/assets/media/file/fujosolizijonufoxijupibip.pdf
- 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_off00010cd8.bin9f57087db2a59986db9ca7d0b335f92843366be21005ba7b3e3c2e14332c95af |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10CD8 | 18080 bytes |
font_01_sfnt_off00013b48.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13B48 | 16792 bytes |
font_02_sfnt_off0001535f.bin32b8f67070aebf3135ce22ce8c5082874f708e6c404f879becce7b26c191b8ec |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1535F | 10444 bytes |
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