MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was identified as malicious by ClamAV and an ML classifier. It functions as a link farm, containing numerous URLs that point to various websites, some of which are hosted on compromised WordPress installations. The presence of 'utm_term' parameters in some URLs suggests an attempt to track user engagement with potentially malicious content, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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://crewmak.ru/uplcv?utm_term=gta+5+online+money+glitch+that+actually+works+2021
- http://ozkayalartrans.com/userfiles/file/61465175524.pdf
- https://stpetejazz.com/wp-content/plugins/super-forms/uploads/php/files/3sjebeaamv15r28kjov1jikhp0/36193335358.pdf
- http://melissajacksonmd.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c94b68b9703---paripuginazesasiwun.pdf
- https://diaochue.vn/userfiles/file/77480210210.pdf
- https://robertbah.si/files/file/7409625085.pdf
- http://glenbrooksouth1970.com/clients/1/17/17fc1bd13d5538a69f39d58c869d2fc5/File/bijaxuresijaxe.pdf
- https://www.drserapkagan.com/wp-content/plugins/super-forms/uploads/php/files/n051llpu1fqs01tt1f8ojk9n24/didekufexiluwoxubinedad.pdf
- http://gramercygrand.ru/files/file/73087718001.pdf
- http://www.gaviprintpack.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607088aea57a1---68764568588.pdf
- http://americanpetrochemicals.com/customers/CMS-IMAGES/file/77787154835.pdf
- http://www.thediethub.in/wp-content/plugins/formcraft/file-upload/server/content/files/160837c46d7e11---20880046686.pdf
- https://www.digitalsofts.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e7a60c287e---83708445870.pdf
- http://mesotects.com/wp-content/plugins/formcraft/file-upload/server/content/files/160929ddd0d6a4---zuzulabuputot.pdf
- http://www.ortodonciaelisafarache.com/ckfinder/userfiles/files/28607386876.pdf
- http://vizesblokk.hu/files/file/luwumomofiwejojem.pdf
- http://anandamsanyal.com/userfiles/file/kojofidarov.pdf
- http://makaifruits.com/wp-content/plugins/formcraft/file-upload/server/content/files/160be550fdca6e---vetoxudol.pdf
- https://jaiminsales.com/ckfinder/userfiles/files/33270436818.pdf
- https://aravlicraft.com/cmsCart//upload/file/59449177527.pdf
- https://tecsal.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606ca915e1ce0---32528654456.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_off0000f191.bin405fc8db49332d4b8125a38f4660a1e6a54b1b4d5eee9c084599a412786f5821 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF191 | 16964 bytes |
font_01_sfnt_off00011d9a.bin62dd31e8e75a4c31951149083d006296541b79fe96af76dceef19111ba61a759 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D9A | 11536 bytes |
font_02_sfnt_off00013904.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13904 | 16792 bytes |
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