MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The file is identified as malicious by ClamAV and an ML classifier, with multiple heuristics indicating it functions as a link farm. The embedded URLs point to various PDF files hosted on diverse domains, some of which appear to be compromised CMS uploads. This suggests a phishing or malware distribution scheme, likely initiated via spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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://catamma.ru/uplcv?utm_term=vlog+star+mod+apk+no+watermark PDF link annotation
- http://shacklefordlawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/vaxiwebadoroxemekegazolo.pdfIn PDF document text
- http://soncongnghiepjotun.com/media/ftp/file/metumuvupowebabitusazasav.pdfIn PDF document text
- https://rjiminfra.com/wp-content/plugins/super-forms/uploads/php/files/5048670314a3748bcc27c555a69f47b8/1170318428.pdfIn PDF document text
- http://montpellier-business-plan.fr/mbp/upload/images/images/upload/ckfinder/luxifunu.pdfIn PDF document text
- http://uptownherndon.com/uploads/files/nexal.pdfIn PDF document text
- http://ekosertifikat.uznature.uz/userfiles/file/fafobarikekajutisujas.pdfIn PDF document text
- https://haysalon.com/public_html/userfiles/file/59327041643.pdfIn PDF document text
- http://asijskepotraviny.cz/files/file/powosaz.pdfIn PDF document text
- https://phm.vn/upload/files/wunerimekax.pdfIn PDF document text
- http://vetcasatenovo.it/userfiles/files/vetojoruvipunelekulu.pdfIn PDF document text
- http://gloria-eurex.com/images/blog/file/depalusopuregarumi.pdfIn PDF document text
- http://ain.proximeo.com/ckfinder/userfiles/files/2078775534.pdfIn PDF document text
- https://familienbilstrup.dk/ckfinder/userfiles/files/94408808771.pdfIn PDF document text
- https://nolimitscenter.be/peausitive/images/FCKeditor/file/fagevidifadugitipu.pdfIn PDF document text
- http://kftchem.com/upload/files/16449702676.pdfIn PDF document text
- https://volpatoebrum.com.br/_common/admin/scripts/ckfinder/userfiles/files/7378114492.pdfIn PDF document text
- http://www.iece.in/userfiles/file/12099661439.pdfIn PDF document text
- http://evabody.ro/wp-content/plugins/formcraft/file-upload/server/content/files/161419a7367114---30878829532.pdfIn PDF document text
- http://comicpapyrus.com/wp-content/plugins/super-forms/uploads/php/files/d58ff1fb5ff3ae1358480a30fcba00f9/jomotalidusuv.pdfIn PDF document text
- https://rsvforum.com/userfiles/file/zuponunilepojisegunoji.pdfIn PDF document text
- http://kuppersbusch.hu/userfiles/files/vatinukitemavorapurokeneb.pdfIn PDF document text
- https://prosaison.fr/userfiles/files/640165822.pdfIn PDF document text
- https://spotiverify.com/ci/userfiles/files/zesivizokogusovomexokexu.pdfIn PDF document text
- http://ecohort.com/userfiles/files/nagigojozumu.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_off0000db46.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB46 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f358.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF358 | 18708 bytes |
SHA-256: 1e77310ac27976d6918866125824a6e5edb066104af7ddbf170d17787c1abea4 |
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font_02_sfnt_off00012453.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12453 | 10788 bytes |
SHA-256: abeb369d5f5479aac2caf5ec2660315e262e8976d6ed6ef562019ea951f6a35f |
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