MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a link farm pointing to multiple distinct hosts, many of which appear to be compromised CMS upload directories. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' indicate a pattern of redirecting users to potentially malicious content. The ML classifier and ClamAV detection further support its malicious nature, likely as a phishing or redirection lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9851
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://saraelv.no/wp-content/plugins/formcraft/file-upload/server/content/files/1609edd0b6af1e---kuwutizuwum.pdf In PDF document text
- http://www.mkkdigital.pt/wp-content/plugins/formcraft/file-upload/server/content/files/160971a84b8850---jepizedokudiki.pdfIn PDF document text
- https://www.scilights.com/wp-content/plugins/super-forms/uploads/php/files/1f0b5bf1175f20e0dfafa0323c698933/44627616581.pdfIn PDF document text
- https://www.sixteengrams.com/wp-content/plugins/super-forms/uploads/php/files/vkh1mjlg2inkf4bgefb9cdaki7/77789001220.pdfIn PDF document text
- http://nano-vip.com/ckfinder/userfiles/files/dixukirosevata.pdfIn PDF document text
- http://shuswapladystriders.ca/userfiles/file/12712051391.pdfIn PDF document text
- https://lcd96.ru/wp-content/plugins/super-forms/uploads/php/files/e334c531a78bfa0ce1accdea0d3592d9/rewixasozunugokowatis.pdfIn PDF document text
- http://www.idenet.net/wp-content/plugins/formcraft/file-upload/server/content/files/160c100fd652f7---17468260453.pdfIn PDF document text
- http://www.psstrecno.sk/wp-content/plugins/formcraft/file-upload/server/content/files/160afe085b383a---kejafetuzipides.pdfIn PDF document text
- https://graffitipaintstudio.com/wp-content/plugins/super-forms/uploads/php/files/23c4381da7123cf1ae1ec41c72650f67/14153641397.pdfIn PDF document text
- https://afra24.com/basefile/afra24/files/6375974151.pdfIn PDF document text
- http://www.tecnotrefg.it/wp-content/plugins/formcraft/file-upload/server/content/files/160a27d646aa47---47845661976.pdfIn PDF document text
- http://www.saraviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ee3e9cfcb6---jegofupejuneleziwopij.pdfIn PDF document text
- http://suseefinance.com/userfiles/file/98465419966.pdfIn PDF document text
- https://krimgranit.ru/wp-content/plugins/super-forms/uploads/php/files/5421e1f0e8ea18394aa25a6e83579ff1/85039524733.pdfIn PDF document text
- https://lotteppta.com/beta/assets/file/86092173345.pdfIn PDF document text
- http://erulingua.hu/uploads/content_files/files/32951477415.pdfIn PDF document text
- https://deconkhoemanh.com/wp-content/plugins/super-forms/uploads/php/files/18oes85mn1ec11p3cpo2mvoqr3/96655729441.pdfIn PDF document text
- https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079adefd2c18---sowununesidipunakuv.pdfIn PDF document text
- http://for-rent-aalst.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d6186a04436---xusebusenezetudowizux.pdfIn PDF document text
- http://www.stockholmswingallstars.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087beb484e33---9103655499.pdfIn PDF document text
- http://donghocasiochinhhang.net/uploads/userfiles/file/nosate.pdfIn PDF document text
- http://intechsol.kz/wp-content/plugins/formcraft/file-upload/server/content/files/160c3565cb84fd---bopuzel.pdfIn PDF document text
- http://www.euro-fly.eu/userfiles/files/14214250816.pdfIn PDF document text
- http://gloexdr.com/wp-content/plugins/super-forms/uploads/php/files/4ec434d225ecdc51868693833b162b01/jefinesuririjit.pdfIn PDF document text
- https://beribuket.ru/wp-content/plugins/super-forms/uploads/php/files/5c6161bbe368af1a8f3afffadb268a86/181033480.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=medes+and+persiansPDF 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_off00017082.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17082 | 17512 bytes |
SHA-256: 1569fdf4425e53da666b54fdc9b5ef89d2f58726fc5b21d59a348dbdebb6a40c |
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font_01_sfnt_off00019da7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x19DA7 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001b5be.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1B5BE | 10112 bytes |
SHA-256: fbcf783210f390fea640284532aa6d1a9d5c8888da7f06f7d34cf89518468e11 |
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