MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. The document contains numerous embedded URLs, many of which point to compromised WordPress sites or disposable hosting, suggesting a link farm designed to distribute malicious content or phish users. The presence of external URI heuristics and link farm indicators further supports this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://krisoc.ru/uplcv?utm_term=naruto+ultimate+ninja+heroes+3+ppsspp+android+download
- https://billionbosses.com/ckfinder/userfiles/files/nixabajedovakifux.pdf
- https://emprenderem.cl/files/mirav.pdf
- http://scherzerpc.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/40424827375.pdf
- https://dispomydeal.com/wp-content/plugins/super-forms/uploads/php/files/714f497c3eb64afe56318b950eb8ce48/boginuno.pdf
- https://dla-pracownika.pl/pliki_user/File/91704342099.pdf
- https://studybrilliant.online/app/webroot/img/userfiles/file/97458716115.pdf
- https://jamisonfurnace.ca/userfiles/files/73963636592.pdf
- http://carneslaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/wapuwefotubiz.pdf
- http://gt-outillages.fr/ressource/site-image/files/xuwatanakakikuzibomoru.pdf
- http://orthopediedelft.eu/files/24085605236.pdf
- http://akbmodel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613829887cfa6---35889245452.pdf
- https://braintreeclinics.com/app/webroot/img/files/18635099076.pdf
- https://horacebatten.com/ckfinder/userfiles/files/netimigesomivevo.pdf
- https://interativacorretora.com/fotosempresa/files/losegebowodevaloxir.pdf
- https://prtl.pl/userfiles/file/kobajalivixus.pdf
- https://cashofferoregon.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135b9c1d4193---93489700617.pdf
- http://alpes-de-haute-provence.proximeo.com/ckfinder/userfiles/files/46824174632.pdf
- http://hondaototanan.com/upload/files/xapakirapenol.pdf
- https://fnb-concepts.com/images/uploads/files/27169280659.pdf
- http://suportti.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133d5108a30d---ratejipedapeluborerob.pdf
- https://www.area-tlc.com/public/ckfinder/userfiles/files/raxobokafofe.pdf
- http://sgo-bage.com/public/files/files/76244154482.pdf
- http://stoka-saarlouis.de/userfiles/file/94765897937.pdf
- http://www.airportlimofortlauderdale.net/wp-content/plugins/formcraft/file-upload/server/content/files/1614137c52ba0f---278972539.pdf
- http://aroma-es.red/yamituki-n/uploads/files/94819479935.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_off0000d1bc.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD1BC | 16792 bytes |
font_01_sfnt_off0000e9d3.bin64f55ebdc0b614119080786c43557890ccecbc75d2be1f77effc54d9c3bb50f8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE9D3 | 11124 bytes |
font_02_sfnt_off0001039a.bin346ac8f6a6c0d094f95283399a1902fc1dc231cba1e9eb1bfd86d1fd6df5bca7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1039A | 20072 bytes |
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