MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links pointing to compromised WordPress sites, indicating a link farm or phishing lure. The ClamAV detection and ML classifier strongly suggest malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a malicious document, likely delivered as a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://infrive.ru/uplcv?utm_term=how+to+find+the+y+intercept+from+two+points
- https://webupdate.ca/wp-content/plugins/super-forms/uploads/php/files/b3insa1t54hhp0jdvhrlf7hvhi/38232970083.pdf
- http://gf-location.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16085089c9dc24---womurin.pdf
- http://kadernictvo-svetlana.sk/editor_uploads/system/files/tumak.pdf
- https://fier-forjat-valimet.ro/ckfinder/userfiles/files/bisufe.pdf
- http://taeguektour.com/FileData/ckfinder/files/20210604_7787C072FFFCCF41.pdf
- http://szkolaprzybranowo.pl/ckfinder/userfiles/files/rolum.pdf
- https://miaousland.fr/ckfinder/userfiles/files/pagesojozoxewegugokuf.pdf
- http://baharemadinah.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ce9ffc4959---79394488411.pdf
- https://zweiund40.com/wp-content/plugins/super-forms/uploads/php/files/p80ef2n2pqogeqrqo8btq3unh5/25766062838.pdf
- https://grandplaza.bg/uploads/assets/file/nekirun.pdf
- https://aldwalia.com/userfiles/files/golojulovulimoz.pdf
- http://sfera-vlad.ru/img/file/rewefevoxonamapafubem.pdf
- http://bluekeydigital.com/images/pic/file/20109167330.pdf
- http://www.farparts.cl/wp-content/plugins/formcraft/file-upload/server/content/files/16088d73f4166e---wozoloj.pdf
- https://balance-global.com/wp-content/plugins/super-forms/uploads/php/files/r8paq5f8et7h95cjjc9vtc76jo/69565281775.pdf
- http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/e4l5b938g94s4vhv85ao2cra52/57729461415.pdf
- https://www.erenang.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608874b7eab37---lagexixaruzegalaku.pdf
- https://aawyx.com/sites/default/imageuser/file/tulejuvetijuxotuvojizim.pdf
- http://luckyassessoria.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16094054042816---naposafibabosij.pdf
- http://andreevmag.com/wp-content/plugins/super-forms/uploads/php/files/9c9a2fd01c9ca6f0e34fae145b6c1372/bubajowozekoxivobijug.pdf
- https://antoinepanau.com/wp-content/plugins/super-forms/uploads/php/files/91f8c8b57d323f7cbc2c815431fee4ac/19828878190.pdf
- http://bascobrunswick.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608392819288e---37660324635.pdf
- https://xlspandoek.nl/userfiles/file/jiwowikibemet.pdf
- http://apexhealthnutrition.com/newerac2c/userfiles/file/gejoxu.pdf
- http://cleannshieldflorida.com/wp-content/plugins/super-forms/uploads/php/files/76d57ecf879d859d3cffd80b3657e8a6/13588160399.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_off0000f990.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF990 | 16792 bytes |
font_01_sfnt_off000111a7.binccc31d56112fe6ad31b18bd8956a4c51d18846c9da5973fc38edef32958bb732 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x111A7 | 10868 bytes |
font_02_sfnt_off00012a90.bind5e644f403c4e7e7284ab64b392aa572d48877b74acdb69439aec589436358ec |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12A90 | 17316 bytes |
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