MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a link farm pointing to numerous compromised WordPress sites, a common tactic for distributing malware or conducting phishing. The ML classifier and ClamAV detection strongly indicate malicious intent. The presence of multiple external URIs and the 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic confirm the document's purpose is to redirect users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://prikolnaya.com/wp-content/plugins/super-forms/uploads/php/files/83b8fe92237c46e0ed109556287762bb/solakubirilonopixidagojas.pdf In PDF document text
- https://cahayaapi1.com/contents//files/43761739121.pdfIn PDF document text
- https://askopenko.com/wp-content/plugins/super-forms/uploads/php/files/6d23a893fb52d2c9270407a4a91a2985/lilitobujoputepekaba.pdfIn PDF document text
- http://www.chinahkcarplate.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc34506cc7---64257881618.pdfIn PDF document text
- http://orderkiwicafe.com/uploads/files/jakijodinowilifafebubug.pdfIn PDF document text
- https://www.gsccn.it/wp-content/plugins/formcraft/file-upload/server/content/files/160777cbc2d828---63906151088.pdfIn PDF document text
- http://studiomanzella.com/userfiles/files/54415168516.pdfIn PDF document text
- https://rijst.nu/userfiles/file/zogoveposizofapufib.pdfIn PDF document text
- http://cdmvt.cz/sites/default/files/batorirogupanojifor.pdfIn PDF document text
- http://www.kevinbrooks.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16076d2f17d694---rutedemexetutuwip.pdfIn PDF document text
- https://yourtuscanyguide.com/wp-content/plugins/super-forms/uploads/php/files/47o927ekjoap5gd263s49jgk71/1484737859.pdfIn PDF document text
- https://cafemocion.com/userfiles/file/jakekutunowipisubomag.pdfIn PDF document text
- http://benardoutlite.com/admin/fckeditor/fckdata/file/92394930009.pdfIn PDF document text
- http://akgikorea.com/file_upload/fck_upfile/file/tiwenupapodafedoze.pdfIn PDF document text
- http://xn--12cm8caae5d9a0a0a1dxk6dd.com/user_img/files/zimewupubarivomepuwuweg.pdfIn PDF document text
- http://mea-travel.pl/userfiles/file/72496306512.pdfIn PDF document text
- https://www.brunosistemi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092aa9c54aec---kupexafubajematepunulok.pdfIn PDF document text
- https://cffcommunications.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/1608ccfc1dcf71---93913954656.pdfIn PDF document text
- http://thepnguyentran.vn/media/ftp/file/76206508857.pdfIn PDF document text
- http://provia-events.de/pics/fotos/1/file/robugimi.pdfIn PDF document text
- http://budaikepkeret.hu/uploads/file/40953635683.pdfIn PDF document text
- http://ecbpolska.pl/wp-content/plugins/super-forms/uploads/php/files/2d98ea3f111637d17fdd04f1ae012c93/gojaniraxopurivenok.pdfIn PDF document text
- http://elfuklid.cz/foto/Image/file/vexonopefosubovuvelenixi.pdfIn PDF document text
- https://west-holding.com/userfiles/file/saminidexasitopilokaliri.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=the+high+rollerPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f09c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF09C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off000108ae.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x108AE | 17604 bytes |
SHA-256: e145328683872685b410b6b13c46d4230aa953d38ddfca046ea785d183ce996c |
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font_02_sfnt_off00013642.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13642 | 9820 bytes |
SHA-256: 212c4d8a5f4b3e12dda0908583a3816ccd784f0fd52a1fcfe5900d4924edb04b |
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