MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs pointing to a variety of domains, many of which appear to be compromised or disposable hosting. Heuristics indicate this is a link farm designed to direct users to external content, consistent with phishing or malware distribution lures. The ML classifier and ClamAV detection strongly support a malicious classification.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
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://archism.ru/uplcv?utm_term=the+master+gland PDF link annotation
- https://hantverksakuten.se/ckfinder/userfiles/files/jowaxajopo.pdfIn PDF document text
- http://goksirkrupskimlyn.pl/img/upload/files/nojazejezosaj.pdfIn PDF document text
- https://minjar.mebel18.com/uploads/files/57439490536.pdfIn PDF document text
- https://bohemiamaestro.com/webpagebuilder/ckfinder/userfiles/files/52925478617.pdfIn PDF document text
- http://www.hermosabeachbungalows.com/userfiles/files/21620143276.pdfIn PDF document text
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/16131b2c4c552c---vagemu.pdfIn PDF document text
- http://prestopc.it/upload/file/15778544594.pdfIn PDF document text
- http://101eyewear.com/luutru/files/32541804614.pdfIn PDF document text
- http://mimarathi.live/assets/ckfinder/core/connector/php/uploads/files/3634992189.pdfIn PDF document text
- https://verticala.ro/images/userfiles/85238438260.pdfIn PDF document text
- https://lesrimaudieres.com/images/uploads/file/84094069061.pdfIn PDF document text
- http://synerfreight.com/syner_upload/images/files/4854807297.pdfIn PDF document text
- https://www.karenlovelee.com/wp-content/plugins/formcraft/file-upload/server/content/files/16153b373b4ab3---38334332316.pdfIn PDF document text
- http://jcpingie.be/public/files/wulodeberibogogojekariso.pdfIn PDF document text
- http://tianlanip.com/filespath/files/20211003140630.pdfIn PDF document text
- http://beijingxinzhi.com/userfiles/file/20210929030231_601394234.pdfIn PDF document text
- http://nemochem.cn/upload/files/86517352992.pdfIn PDF document text
- http://tryinvest.eu/userfiles/files/47060340679.pdfIn PDF document text
- https://renault-service.com/userfiles/fumudiginugom.pdfIn PDF document text
- http://haiannweb.com/uploads/files/rexibikidizako.pdfIn PDF document text
- https://www.ideaklinik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1614442558040b---56254933569.pdfIn PDF document text
- http://mayinmaunhat.com/upload/files/15525032371.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_off0000af37.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAF37 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c74e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC74E | 10448 bytes |
SHA-256: 19e6a5aa96f53f832c795771df6746f1d60cb989a8163be1f6737197dfb371f2 |
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font_02_sfnt_off0000de98.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE98 | 16272 bytes |
SHA-256: 2524b44de43bb937f82c6bea82c820d7eb8f3653550bdea6a79e2519cb5fb7a8 |
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