MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a link farm pointing to multiple compromised websites and disposable domains, designed to trick users into downloading a malicious file. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. No scripts were extracted, but the PDF structure and embedded URLs suggest a phishing lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://ketchas.ru/uplcv?utm_term=download+sandbox+premium+apk PDF link annotation
- http://klimatyzacjaradom.pl/userfiles/file/nofotadatuwulanazuv.pdfIn PDF document text
- http://rusiuojigalvoji.lt/wp-content/plugins/formcraft/file-upload/server/content/files/16140bb92b46ef---99622120318.pdfIn PDF document text
- https://mylin.in/ckeditor/ckfinder/userfiles/files/nebimonoza.pdfIn PDF document text
- http://permanentnimakeup-brno.cz/userfiles/files/dogexubom.pdfIn PDF document text
- https://immo-macedo.lu/userfiles/files/mawibolomeji.pdfIn PDF document text
- https://www.adcgrain.com/wp-content/plugins/super-forms/uploads/php/files/92dc9736f23c2504d7713662e31e0da8/zatafe.pdfIn PDF document text
- http://nilesk.com/userfiles/file/56211991134.pdfIn PDF document text
- https://balaji-technology.com/userfiles/file/tuwovidasiwijiwina.pdfIn PDF document text
- http://zimmerei-possert.at/kidejekupojuferafiwotib.pdfIn PDF document text
- http://sibmaxi.ru/userfiles/file/nusiwa.pdfIn PDF document text
- https://ferdavagnar.is/images/fck/file/22761304381.pdfIn PDF document text
- https://inprovitecuador.com/ckfinder/userfiles/files/59810487807.pdfIn PDF document text
- https://nguyenvanhuongloc.vn/app/webroot/files/images/pages/files/rujodusegiwuzotibulapajav.pdfIn PDF document text
- http://www.cuadernos.in/wp-content/plugins/formcraft/file-upload/server/content/files/1614b8a297e91c---norinekegomuk.pdfIn PDF document text
- http://rsentco.com/upload/file/95288502457.pdfIn PDF document text
- http://kastely-vacduka.hu/fileok/file/66829516502.pdfIn PDF document text
- https://www.simplythebestevents.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1612efb1d364c2---jesipi.pdfIn PDF document text
- https://arbormaster.net/uploads/files/dilamaj.pdfIn PDF document text
- http://i-harmonics.com/upload/files/musupukexuzuj.pdfIn PDF document text
- http://chupanhnoithat.vn/upload/files/79344553112.pdfIn PDF document text
- http://blgjad.com/upload/files/66250500076.pdfIn PDF document text
- https://sanidom.pl/img/file/fepudub.pdfIn PDF document text
- http://www.siphonicflowmandiri.com/upload/files/vemazuxoniraduriboki.pdfIn PDF document text
- http://abwrosedale.com/uploads/files/45199083103.pdfIn PDF document text
- 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_off0000b257.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB257 | 14528 bytes |
SHA-256: ec7aab4a7d022dbd037e40e9534089033e7b277a664715fed6303fc9399e5f3f |
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font_01_sfnt_off0000d6f6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD6F6 | 10976 bytes |
SHA-256: 6d861ebdc6f374f33b22b13f115d68c396e2987f41386c3ef113e8ca9b162073 |
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font_02_sfnt_off0000f03f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF03F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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