MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains numerous embedded URLs, many of which point to compromised CMS upload storage or disposable hosting, indicating a link farm designed to distribute malicious content or phish users. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or malware delivery via a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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://grupo-kayros.com/userfiles/file/tapujenigirunagid.pdf In PDF document text
- https://xn--pssa17sw71b.tw/upimages/files/rebusadi.pdfIn PDF document text
- http://chromoink.com/updates/file/bekakewokijepanozuvas.pdfIn PDF document text
- http://colonia-hausmeister.de/uploads/files/ganoli.pdfIn PDF document text
- http://ccsctda.com/ckfinder/userfiles/files/20210913_181112.pdfIn PDF document text
- http://olech-rzeszow.pl/userfiles/file/gomipopigosodoguxi.pdfIn PDF document text
- http://www.sanjuktabanerjee.com/fckimages/file/kawetinujovevibobivapora.pdfIn PDF document text
- https://santa.my/images/users/00000000/files/39201146785.pdfIn PDF document text
- https://777mto.info/contents/files/97867015902.pdfIn PDF document text
- http://asustainable.com/global/file/xanebiwina.pdfIn PDF document text
- http://waetsukai.jp/system/ckfinder/userfiles/files/rukumukivubele.pdfIn PDF document text
- http://thegioixedap.net/upload/files/ganuj.pdfIn PDF document text
- http://liderzy.natura2000.pl/imgturysta/files/lujamufawu.pdfIn PDF document text
- http://www.akutrans.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613bc682c22ef---bisobifokimikuz.pdfIn PDF document text
- https://inchiriereelicopterromania.ro/wp-content/plugins/formcraft/file-upload/server/content/files/161306818d75ac---goniwebanusi.pdfIn PDF document text
- http://toroisg.com/public/images/files/rebapalagujezej.pdfIn PDF document text
- http://luchetti.it/userfiles/files/gipibulakedifij.pdfIn PDF document text
- https://nationalcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613fb97e8fc1e---69484683169.pdfIn PDF document text
- http://faradtvandor.hu/picture/userfiles/file/37069007168.pdfIn PDF document text
- https://trucraftsmanship.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614b8d771550d---49489343744.pdfIn PDF document text
- https://vestol.bg/files/file/6114806271.pdfIn PDF document text
- https://www.tri-or.fr/tri-or/ckfinder/userfilesfiles/janivojenikulinixedabala.pdfIn PDF document text
- http://safetruck.gr/images/file/sofefuluzudifogixamomox.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=saw+9+full+movie+watch+onlinePDF 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_off0000f8c5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8C5 | 10828 bytes |
SHA-256: 3018c0c160f14402e5d3bba301e1d3889b448022188f7cb02a9be93a8b58eb66 |
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font_01_sfnt_off000111ad.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x111AD | 17596 bytes |
SHA-256: 29b9c2f3244d6943f7b784604210a8e80752f74c181c6f64767ae9fd841fcc04 |
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font_02_sfnt_off00013ef2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13EF2 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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