MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains a large number of embedded URLs, many pointing to compromised WordPress sites, suggesting it functions as a link farm to distribute malicious content. The presence of external URIs and the overall structure indicate an attempt to redirect users to potentially harmful websites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9907
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://crysiq.ru/uplcv?utm_term=wifi+identity+and+anonymous+identity
- http://pck.malopolska.pl/wp-content/plugins/super-forms/uploads/php/files/3588ef97e1bde93cec9f1dc38a4e556f/vawitupezusekigokonuku.pdf
- http://vipavtoufa.ru/wp-content/plugins/super-forms/uploads/php/files/0f1221234f357e6e3525c96a63fe8fe5/11367137950.pdf
- http://www.driftime.ee/wp-content/plugins/formcraft/file-upload/server/content/files/1614b5d418be2c---54198772336.pdf
- http://abwingssuffolk1.com/uploads/files/pevejupimamufikobav.pdf
- http://msslink.ru/userfiles/files/97825392391.pdf
- http://cyklo-sport-servis.cz/UserFiles/File/zagegazaxegavugudi.pdf
- https://markiza-trade.ru/admin/ckfinder/userfiles/files/67087336838.pdf
- http://nuitsdartistes.eu/images/file/vunuf.pdf
- https://congnghiepxd204.vn/upload/files/dujumikatoxinezuxusa.pdf
- http://pampa.be/uploads/userfiles/files/viberututabogaf.pdf
- http://dsfly.com/uploads/files/noporukafem.pdf
- http://studiotecnicolamanna.com/userfiles/files/11799565276.pdf
- http://news-hk.net/uploadfile/file///40788170556.pdf
- https://estidevelopers.com/wp-content/plugins/super-forms/uploads/php/files/0c8a4e60879acd91d8b12d0b423aaef5/miwurisuzamutigemiwoloxu.pdf
- http://spokoino.ru/i/upload/files/fubilozaxiralojefug.pdf
- http://innersolutions-uk.com/file/redijiluxusa.pdf
- http://hzxgdz.com/images/upload/File/livividokitu.pdf
- http://cn-polylysine.com/d/files/45447963312.pdf
- http://portalcom-b2b.es/img/user//file/_0475032001631542968.pdf
- http://evohome.pl/userfiles/file/sixegepagora.pdf
- https://ms02bet.com/contents/files/bepagenaxenapi.pdf
- https://anbc31.iscriptscloud.com/app/webroot/files/file/49197310785.pdf
- http://deurenhanger.nl/userfiles/file/zasivanelaxukumi.pdf
- https://salwangurugram.com/files/busaragof.pdf
- http://megatex-plast.ru/pub/file/14754565196.pdf
- http://xn--80aaaaaikdebj9ccf1ayja1b5a3q.xn--p1ai/ckfinder/userfiles/files/60820211307.pdf
- https://vilus.cz/userfiles/file/nigizigu.pdf
- http://www.timtransportes.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/1613854092d813---37667614010.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_off0000b86f.bin5998cc9b17debf82011d80bdf5b74bbe0fd915f98134af700e7fe0ed8a2980a0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB86F | 10576 bytes |
font_01_sfnt_off0000d09c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD09C | 16792 bytes |
font_02_sfnt_off0000e8ae.bin82ff4c8003c807a1f83dfcf484b80587b09cbcb32205bb2ad7be036ab1340954 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE8AE | 17708 bytes |
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