MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm and contains embedded JavaScript. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9912
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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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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=oval+coriolis+mass+flow+meter+manual PDF link annotation
- http://15881588.com/ckupload/files/nulowogifugidibojodevubo.pdfIn PDF document text
- http://sakesushilakehavasu.com/uploads/files/susijemakafo.pdfIn PDF document text
- http://lammensfilip.be/uploads/files/pituzevaris.pdfIn PDF document text
- http://client.diffuse.info/files/78229257750.pdfIn PDF document text
- https://habrit.tw/ckfinder/userfiles/files/waxezosoxot.pdfIn PDF document text
- http://knupress.com/pds/editor/file/79409095782.pdfIn PDF document text
- https://brtim.com/uploads/wysiwyg/files/nidinufexuzof.pdfIn PDF document text
- http://kme-kme.cz/files/file/5006418071.pdfIn PDF document text
- https://vinaconexmec.vn/uploads/news_file/titaxuzezivexexuzulufulu.pdfIn PDF document text
- http://farmaciafasolis.eu/userfiles/files/veboxowageke.pdfIn PDF document text
- http://gesundheit-im-blog.de/userfiles/file/20970298109.pdfIn PDF document text
- http://chaputlawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/38962026213.pdfIn PDF document text
- http://omegapizza.net/uploads/files/kodorapikox.pdfIn PDF document text
- https://creativesilhouettes.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16134a7e4f3ce7---parib.pdfIn PDF document text
- https://carthink.org/wp-content/plugins/formcraft/file-upload/server/content/files/161374e84c1a8b---72221893524.pdfIn PDF document text
- http://denprokhorov.ru/images/file/13905979722.pdfIn PDF document text
- http://mutamobilya.com/images_upload/files/99699796813.pdfIn PDF document text
- https://10kshot.com/customerinterview/ckfinder/userfiles/files/firuv.pdfIn PDF document text
- https://mygenius.ru/admin/ckfinder/userfiles/files/85310124074.pdfIn PDF document text
- http://allivecoat.com/userData/board/file/75942190108.pdfIn PDF document text
- http://artvideo74.ru/upfiles/files/21349073405.pdfIn PDF document text
- http://zhongguohuachun.com/d/files/sizojeburolejameji.pdfIn PDF document text
- https://willmarareachamber.com/ckfinder/userfiles/files/baxudapuwuzupazibelubejux.pdfIn PDF document text
- https://indirimlipin.com/calisma2/files/uploads/67644436235.pdfIn PDF document text
- https://www.agro-zavod.ru/app/webroot/js/ckfinder/userfiles/files/zerojogebuv.pdfIn PDF document text
- https://selispin.com/calisma2/files/uploads/nonagivegumibov.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_off0000ecb3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECB3 | 17776 bytes |
SHA-256: 92139c77fe2acd413bb928d43739e7cf0bb673456f6ac3b27bcf8deded2da0f7 |
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font_01_sfnt_off00011b4e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B4E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00013365.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13365 | 10776 bytes |
SHA-256: f6b74687005b9e535085f7205976bf80c7884724d228903fea880a9a7426f9ef |
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