MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file is a PDF identified as malicious by ML classifiers and ClamAV. It contains numerous embedded URLs, many of which point to compromised CMS upload directories or disposable hosting, suggesting a link farm or phishing lure. The presence of these links and the PDF's structure indicate an attempt to redirect users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
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://goref.ru/files/file/52682746301.pdf In PDF document text
- http://www.northern-japan.com/image/upload/File/70563692479.pdfIn PDF document text
- https://comtraining.cl/userfiles/files/36751255164.pdfIn PDF document text
- https://ehbo-oostkapelle.nl/userfiles/file/bamufolisiju.pdfIn PDF document text
- http://www.megasaludips.com/wp-content/plugins/formcraft/file-upload/server/content/files/161449f61823ce---43573779727.pdfIn PDF document text
- http://riph.pl/userfiles/file/xireji.pdfIn PDF document text
- https://vocembalo.ch/userfiles/file/35688850411.pdfIn PDF document text
- http://pazarziraat.com/userfiles/file/resineveri.pdfIn PDF document text
- https://www.andeanskyline.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613aa53a6f687---fizejexujezofugoso.pdfIn PDF document text
- https://hgb.se/filer/file/punofefizujiz.pdfIn PDF document text
- https://we-plus.tw/ckfinder/userfiles/files/15605669178.pdfIn PDF document text
- http://gangwonbnb.com/FileData/ckfinder/files/20210914_9A800371D95C27E9.pdfIn PDF document text
- http://k3projekt.pl/uploads/userfiles/files/65909529025.pdfIn PDF document text
- https://izyskately.ru/foto/ck/files/xexegimogox.pdfIn PDF document text
- http://capthepcongtrinh.com/uploads/news/files/3169093459.pdfIn PDF document text
- http://architectureanddesign.it/userfiles/files/nojidigeramobukapa.pdfIn PDF document text
- https://optical-axis.com/uploads/files/202109201328569935.pdfIn PDF document text
- https://www.wizzfizz.com.au/application/third_party/ckfinder/userfiles/files/latewuralodepodeb.pdfIn PDF document text
- http://nacyc.jp/Upload/file/nedupuzevalamedixaxiwage.pdfIn PDF document text
- http://csc-021.com/userfiles/file/20210915210347_t874jv.pdfIn PDF document text
- http://www.191seo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614128b1e9920---89719512474.pdfIn PDF document text
- http://wronba.com/uploads/wysiwyg/file/12611534617.pdfIn PDF document text
- http://fatfailogistics.com/fckeditor/files/file/sanex.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=beautyplus+apk+app+downloadPDF 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_off0000b140.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB140 | 10640 bytes |
SHA-256: c8c3449651ab2caa0598d3f671a78153655b8ca1b3259eeeffd3f73a027d3c24 |
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font_01_sfnt_off0000c9e2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC9E2 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000e1f4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1F4 | 15148 bytes |
SHA-256: 65523a071753c85a34ec8aac4607de0f8b18d20d111eb13c8e164f3a4f15e132 |
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