MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The ML classifier strongly indicated maliciousness, supported by heuristics identifying the PDF as a link farm pointing to compromised WordPress uploads and disposable hosting. The embedded URLs, such as 'https://coretry.ru/uplcv?utm_term=christmas+by+wham', are likely used to redirect users to phishing sites or download further malicious content. No scripts were extracted, but the structure and URLs suggest a social engineering attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
Heuristics 5
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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://coretry.ru/uplcv?utm_term=christmas+by+wham PDF link annotation
- https://www.frankcapassoandsons.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b6e37928596---37608022229.pdfIn PDF document text
- https://na-nule.ru/wp-content/plugins/super-forms/uploads/php/files/5h4f037j2mbqnv9gs96p71f7t7/63861970768.pdfIn PDF document text
- https://0a3exp.com/upfiles/editor/files/xabuzewepibutu.pdfIn PDF document text
- http://paintingservicesonline.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16080cc07e22b7---72358701159.pdfIn PDF document text
- http://greathorserider.com/ckfinder/userfiles/files/95657976491.pdfIn PDF document text
- https://festivalecolo.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1608c181105158---jularalatebogodopo.pdfIn PDF document text
- http://divorcefinance.nl/uploads//file/15113176584.pdfIn PDF document text
- http://aaexpansionjoint.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ab15a5904ab---19832797633.pdfIn PDF document text
- https://www.glasswindowequipment.com/wp-content/plugins/super-forms/uploads/php/files/0e58b65a7820ff7051384b05f1736b81/nevavuronuda.pdfIn PDF document text
- http://www.tif.cn/wp-content/plugins/super-forms/uploads/php/files/saldnoqvrqf421nu4c56u901ru/lisajozesibudofe.pdfIn PDF document text
- https://nothingbutsafetyglasses.com/userfiles/file/basemuv.pdfIn PDF document text
- http://fotossc.pl/_files/file/futefasop.pdfIn PDF document text
- http://yuha.be/_files/file/xufuxaxofiginozi.pdfIn PDF document text
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b9d05d5ddaa---ximuwirepuverapu.pdfIn PDF document text
- http://anaminfo.com/attachfile/file/tujafo.pdfIn PDF document text
- http://elitvorota.ru/f/file/gogokobukavetez.pdfIn PDF document text
- https://www.geosuiteonline.de/wp-content/plugins/formcraft/file-upload/server/content/files/16088758d31fab---jefates.pdfIn PDF document text
- https://connect.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/3004812883462bf4322334d33548a433/48492243700.pdfIn PDF document text
- http://terapie-psi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1608fb8fc4373e---68571829469.pdfIn PDF document text
- http://handbook.hu/upload/page/file/52162826216.pdfIn PDF document text
- https://vashadvokat82.ru/wp-content/plugins/super-forms/uploads/php/files/f1dd65ea2d425a57c80cab0924228392/9418083834.pdfIn PDF document text
- https://wkd-uk.com/wp-content/plugins/super-forms/uploads/php/files/754a678a6c0d64b29a3e7e457d7c0daf/didulilipufezexunolu.pdfIn PDF document text
- http://aunay-sous-auneau.fr/ckfinder/userfiles/files/73974928040.pdfIn PDF document text
- https://www.capitalroofingct.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f1d1ecaee6---refep.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_off0000fe19.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE19 | 10340 bytes |
SHA-256: 319fd7a676ae4ebae8c8e1efe473cde6f58e6260ca4ba9bb93fedc3f3009fd23 |
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font_01_sfnt_off00011587.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11587 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012d99.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12D99 | 17656 bytes |
SHA-256: 282a290f39a164d37cf97608be3c64b3ca38cbe2f5f123e696cf62b48e10d819 |
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