MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier. It contains numerous links pointing to compromised websites and disposable hosting, suggesting a phishing or malware distribution scheme. The presence of a link farm on compromised CMS upload storage indicates an attempt to disguise malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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=minecraft+pocket+edition+apk+game
- http://chinazzjx.com/d/files/111310202.pdf
- https://businesslife.com/content/file/6592214480.pdf
- http://wabasnb.com/files/fckeditor/file/83165380761329176e5c7b.pdf
- https://www.marthatrotts.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1614e249945266---38316420564.pdf
- http://art-ball.net/files/file/jamezevaxixemezelorefu.pdf
- http://nuyewpilot.academy/wp-content/plugins/super-forms/uploads/php/files/7c12d22024928ba15c5fe12134590485/nejuropavu.pdf
- http://vasilii-orlov.fun/wp-content/plugins/super-forms/uploads/php/files/1fe3aea203e568dd644ed5ad0fed4292/76740283637.pdf
- https://rmp-traueranzeigen.de/cms/files/14795184361.pdf
- http://csc020.com/userfiles/file/20210909164553_ha2cmg.pdf
- http://goldendazzle.com/upload/quangtri/files/vivaxoxoxu.pdf
- http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161407f69353d8---11696887702.pdf
- http://slstudio.it/userfiles/files/rejanukomuta.pdf
- https://moolans.com/uploads/files/karerirer.pdf
- http://cnsgafgl.netsociality.com/upload/files/rifivatopufujuxotu.pdf
- http://nail-free.com/ckfinder/userfiles/files/xurarunexarumaxofabon.pdf
- http://saraya-shop.ru/upload/files/55785437627.pdf
- https://incense888.com/uploads/files/202109191020491888.pdf
- http://www.juniorcollege.cl/ckfinder/userfiles/files/98828314038.pdf
- http://club-integra.ru/userfiles/file/58590132422.pdf
- https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/16131c03a6cc76---56936318987.pdf
- http://laros.cz/UserFiles/file/7059939827.pdf
- http://preciz.com/uploads/wysiwyg/files/67962210992.pdf
- http://kiajihlava.cz/UserFiles/File/kudesovugowogabe.pdf
- https://nikoljski.com/ckfinder/userfiles/files/lotojusazewufimag.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_off0000b052.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB052 | 16792 bytes |
font_01_sfnt_off0000c864.bin940f26a6b7278b98f47da459ea2b214f28c4d37c8a4ea29bdec56737942ad89e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC864 | 16712 bytes |
font_02_sfnt_off0000f31f.bin8c7c776848ba63c91f977528d7d4cfa3237dc55ac09d9bd23eb4d7cac3dd8ee3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF31F | 10832 bytes |
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