MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous external URIs and is flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a pattern of using many distinct, low-reputation domains for hosting PDF files, suggesting an attempt to obscure the true malicious infrastructure. The presence of embedded URLs and the overall structure point towards a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
Heuristics 5
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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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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://crewmak.ru/uplcv?utm_term=rsv+caused+by PDF link annotation
- http://sgrappresentanze.eu/userfiles/files/73035109580.pdfIn PDF document text
- https://sibservis.com/ckfinder/userfiles/files/30664042740.pdfIn PDF document text
- https://chezgregoire.fr/userfiles/kidawijomakomefifexi.pdfIn PDF document text
- https://demideopool.ro/ckfinder/userfiles/files/donevaziteros.pdfIn PDF document text
- http://uniquecharacters.com/upload/files/wututawupisovuvi.pdfIn PDF document text
- https://biblioteka-koneck.pl/ckfinder/userfiles/files/wogolilet.pdfIn PDF document text
- https://fiberglasssupplydepot.com/userfiles/file/6361241336.pdfIn PDF document text
- http://agisinfo.ru/uploads/content/files/67563907462.pdfIn PDF document text
- http://www.ponderosafestival.com/wp-content/plugins/formcraft/file-upload/server/content/files/16160371bcc0a5---24467877037.pdfIn PDF document text
- https://inprovitpuertorico.com/ckfinder/userfiles/files/65918053072.pdfIn PDF document text
- http://xdata.pl/app/webroot/img/ckf/files/91852996428.pdfIn PDF document text
- http://thaiboxes.com/piceditor/file/22567301626.pdfIn PDF document text
- http://nbmounts.com/userfiles/file/1633037003.pdfIn PDF document text
- https://isabellepieman.com/userfiles/file/91131997702.pdfIn PDF document text
- http://kbidc.kr/upload/editor/file/1632813275.pdfIn PDF document text
- https://transport.frontiermyanmar.com/sites/all/libraries/ckfinder/userfiles/files/20018299066.pdfIn PDF document text
- http://dallard.fr/ressource/site-image/files/90373513619.pdfIn PDF document text
- https://drbumbnursinghome.in/ckfinder/userfiles/files/4283812796.pdfIn PDF document text
- http://vhktn.at/images/content/files/55206864264.pdfIn PDF document text
- http://a-pointpro.com/cms/ckfinder/userfiles/files/tidedawisozakowefosutabuk.pdfIn PDF document text
- https://hantverkarenisandby.se/UserFiles/files/5671870708.pdfIn PDF document text
- http://yushendesign.com/images_fck/file/1630743911.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_off0000d1c7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD1C7 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e9d9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE9D9 | 18400 bytes |
SHA-256: cb4d6119ad1b48c46ea9e74ab5959a549d38fab01415c121cb71df14a90e1823 |
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font_02_sfnt_off000118db.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x118DB | 10268 bytes |
SHA-256: fc8c0d80ef4f76f0b3f91a197bc0cef5f377ed73ededd5437f578a2944b43f94 |
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