MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs pointing to various domains, many of which appear to be part of a link farm. The presence of 'utm_term' parameters and the structure of the URLs suggest a phishing or malicious redirection scheme. ClamAV detection and ML classification further support its malicious nature, indicating it's likely a phishing or trojan delivery mechanism.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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 https://crewmak.ru/uplcv?utm_term=manual+msd+insuficiencia+cardiaca PDF link annotation
- http://naoshima-habitant.com/images/blog/file/lusosepawileduninibazogew.pdfIn PDF document text
- http://dietetyka-24.pl/images/files/gikadoruwotimowigileb.pdfIn PDF document text
- https://dalilak1.com/userfiles/file/58935154844.pdfIn PDF document text
- https://imagebuzz.net/ckfinder/userfiles/files/56927379148.pdfIn PDF document text
- https://www.allterra.group/wp-content/plugins/super-forms/uploads/php/files/e17134a0649f645d6a3580f6b82fe5e2/jarogufodal.pdfIn PDF document text
- http://bdsps.org/slbdavbatala/userfiles/file/xijadelexirowe.pdfIn PDF document text
- https://publicbridge.pl/userfiles/file/36634994220.pdfIn PDF document text
- http://etasystem.net/userfiles/files/25069124894.pdfIn PDF document text
- http://www.biogreeno.com/cms/ckfinder/userfiles/files/sivenena.pdfIn PDF document text
- http://tnmetalworks.com/images/files/ruxitokademuz.pdfIn PDF document text
- http://kolbiko.com/images/uploads/file/vovudoxijudepozegujare.pdfIn PDF document text
- http://hbaoge.com/upload/files/8930837541.pdfIn PDF document text
- https://lnpro.in/ckfinder/userfiles/files/55922153155.pdfIn PDF document text
- http://foto-klub.dk/userfiles/file/mapametafizefar.pdfIn PDF document text
- https://namdolove.com/FileData/ckfinder/files/20210906_4C5BFA18330CB8E0.pdfIn PDF document text
- http://smartcookieacademy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136ea9632667---3214608144.pdfIn PDF document text
- https://coastalstudio.com/images/main/file/pupididakexok.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138487b967f7---demejuxoxeluvegugakap.pdfIn PDF document text
- http://riph.pl/userfiles/file/sumasabareraworik.pdfIn PDF document text
- http://sportschoolindex.nl/images/uploads/36060977891.pdfIn PDF document text
- http://xn--80adpfaaeictf0c6c7i.xn--p1ai/public/file/13954876437.pdfIn PDF document text
- https://pinyardim.com/calisma2/files/uploads/49483078064.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_off0000ce5c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCE5C | 10512 bytes |
SHA-256: 3d38eddefc5591a47f36b6757b69b2d48cae6c5d6e19b5d4da71f1ebdf64df63 |
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font_01_sfnt_off0000e627.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE627 | 19132 bytes |
SHA-256: 76a36c253ee9e8d2b63a61834fb3d84e89758bf8d922bf2f5c7ebfd64d02d471 |
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font_02_sfnt_off000116c5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x116C5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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