MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs, many of which point to disposable hosting or compromised CMS upload directories, indicating a link farm designed to distribute malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware delivery. The presence of multiple PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics further supports this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
Heuristics 6
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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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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 http://splogservice.ru/content/files/tiwuxos.pdf In PDF document text
- http://harckocsik.hu/userfiles/file/lamutil.pdfIn PDF document text
- https://drosamahetta.com/userfiles/file/runegezulir.pdfIn PDF document text
- https://www.acptechnologies.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613cff782280e---73333211688.pdfIn PDF document text
- http://skpizzasubs.com/uploads/files/41933547770.pdfIn PDF document text
- https://grandhotelbulgaria.com/userfiles/file/maranisezukukopo.pdfIn PDF document text
- http://wajl.net/img/file/2021910195147.pdfIn PDF document text
- http://crescentcarpets.com/userfiles/file/tupeduzuzifanuvuwajod.pdfIn PDF document text
- http://mh-gartengestaltung.de/userfiles/file/71559263698.pdfIn PDF document text
- http://trendstyleimage.com/uploads/ckfinder/userfiles/files/60841931110.pdfIn PDF document text
- http://saludocupacionalpso.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/161332071bdc0b---63532560412.pdfIn PDF document text
- http://strahyi.ru/images/file/13588416736.pdfIn PDF document text
- https://microfocus-realize2020mea.com/wp-content/plugins/super-forms/uploads/php/files/969dff2f974d1baef08d0066bd768e84/98025444791.pdfIn PDF document text
- http://www.belladermeestetica.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613145c37aac1---masisat.pdfIn PDF document text
- https://www.chauffeur-prive-nice.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1613be43c2c860---luvetinivazomafidorem.pdfIn PDF document text
- http://shqinze.net/admin/upimg/file///79350994190.pdfIn PDF document text
- https://mimpishio2bet.com/contents/files/vadule.pdfIn PDF document text
- https://rhdplumbing.com/wp-content/plugins/super-forms/uploads/php/files/9e99b1e21859176efb532c915ff4e412/32399948007.pdfIn PDF document text
- https://dorfadvertising.com/ckfinder/userfiles/files/8236486890.pdfIn PDF document text
- http://www.thunderesp.com/ckfinder/ckfinder.htmlfiles/98140288533.pdfIn PDF document text
- http://orthodoxvaidikasanghom.org/userfiles/file/99046138064.pdfIn PDF document text
- http://goldenteriyaki.com/uploads/files/60270572920.pdfIn PDF document text
- http://gazosilikatnn.ru/uploads/files/pobox.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=how+to+have+robux+freePDF link annotation
- 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_off0000c3c9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC3C9 | 17180 bytes |
SHA-256: 716ab14fc65fec49f9c9e8c2acc1059aa5d552d111511ca1da91183069f0418b |
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font_01_sfnt_off0000f05e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF05E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010875.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10875 | 10384 bytes |
SHA-256: c4de6eef015476ef66ca0fc4eaff9cf3465bcff43cd4f1f7f79e1a0f85178ac1 |
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