MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by a machine learning classifier and ClamAV as malicious. It contains numerous links, many pointing to compromised CMS upload directories or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of external URIs and link farm heuristics indicates an attempt to lure users to potentially harmful websites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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 http://pogologistics.com/ckfinder/userfiles/files/8677150916.pdf In PDF document text
- https://snowcat.pl/admin/ckfinder/userfiles/files/29324327465.pdfIn PDF document text
- http://kanoonkaraj.ir/dbmanager/filebank/htmlgallery/file///dulina.pdfIn PDF document text
- http://taiwangallant.com/uploads/files/202109082001533179.pdfIn PDF document text
- http://veszpremlizards.hu/_user/file/zifejigawijami.pdfIn PDF document text
- http://www.scsk12.org/policy/files/files/puwesuziwiwewume.pdfIn PDF document text
- http://historia-bfured.hu/userfiles/file/27279147436.pdfIn PDF document text
- http://theflowermaker.com/uploads/File/gewilasikefekolevulutot.pdfIn PDF document text
- https://viessmannboilers.ca/fck_upload/file/43813345284.pdfIn PDF document text
- http://wenyanchem.com/upload/files/kibasawotabarog.pdfIn PDF document text
- https://ateneoarbonaida.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613faa0054198---lasolefopelijof.pdfIn PDF document text
- https://tepatsasaran.com/contents/files/2426027776.pdfIn PDF document text
- https://www.campacinter.com/image/upload/File/poninuluso.pdfIn PDF document text
- http://ballmillfactory.com/d/files/16787911440.pdfIn PDF document text
- http://phutungvespaco.com/luutru/files/nedar.pdfIn PDF document text
- http://pampa.be/uploads/userfiles/files/sujosifajunot.pdfIn PDF document text
- https://www.mobytec.com.br/mobytec/wp-content/plugins/formcraft/file-upload/server/content/files/16143ec18e82ca---wisadefedixevewitijasibu.pdfIn PDF document text
- https://arizonapoolcontractor.com/wp-content/plugins/formcraft/file-upload/server/content/files/16147cfd8751d2---wetidakugupulura.pdfIn PDF document text
- http://webcertain.net/contentupload/fckeditorUploads/organization_/file/42647108602.pdfIn PDF document text
- https://wintechindia.in/ckfinder/userfiles/files/55054431238.pdfIn PDF document text
- https://ruiguoex.com/upfile/files/2021/09/17/lazekusulutenunitodima.pdfIn PDF document text
- http://www.ashtralmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ef75841cec---lozuniduliledofevotamin.pdfIn PDF document text
- https://nichecnk.leaddeehub.com/userfiles/files/41233249689.pdfIn PDF document text
- http://originalavto.ru/userfiles/file/vojubevawaxerikedudo.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=free+sat+test+pdfPDF 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_off0000d9ed.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD9ED | 18104 bytes |
SHA-256: ff41acad05c366b8ed6ee66d3f859675c2cf0cbf6f1a4d07e66fa47aef212da2 |
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font_01_sfnt_off000108ca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x108CA | 10104 bytes |
SHA-256: acc736dcbb2b86898b7d3baca2873212d175439980a2fe353352181582043a7c |
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font_02_sfnt_off00011f73.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F73 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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