MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which point to compromised CMS upload storage or disposable hosting, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://crysiq.ru/uplcv?utm_term=feeling+faint+after+working+out PDF link annotation
- https://414movement.com/wp-content/plugins/super-forms/uploads/php/files/a7b38985a40646c23d9513681994e396/41880378492.pdfIn PDF document text
- http://koddous.com/userfiles/file/55994469963.pdfIn PDF document text
- http://abwjefferson.com/uploads/files/zaberokisoduvijid.pdfIn PDF document text
- https://profession-your-dr.com/uploads/files/202109191021457655.pdfIn PDF document text
- https://ruh-center.ru/userfiles/file/naxosuj.pdfIn PDF document text
- http://kdbelektrotechniek.nl/uploads/file/dufatixisa.pdfIn PDF document text
- http://cariboohose.com/userfiles/file/90171982588.pdfIn PDF document text
- https://kamwalibais.com/userfiles/file/zaxaji.pdfIn PDF document text
- http://thietkewebsite.btccorp.vn/uploads/files/27361133759.pdfIn PDF document text
- http://lesrimaudieres.com/images/uploads/file/64820886568.pdfIn PDF document text
- http://english-island.pl/wp-content/plugins/super-forms/uploads/php/files/87b9u9i4lmtm2rf35pb0v1bss0/kuzuparofogukino.pdfIn PDF document text
- http://mariondhuique-mayer.com/data/file/tunofinifinujodonib.pdfIn PDF document text
- https://www.sesc.com.ua/wp-content/plugins/super-forms/uploads/php/files/5f573k9cqg5ra6pdmku922qe92/65973658553.pdfIn PDF document text
- https://home18.ru/wp-content/plugins/super-forms/uploads/php/files/5b5e5dcddb78c213142299b89547fef8/2547137342.pdfIn PDF document text
- http://circolonauticofavignana.it/userfiles/files/pegixikukifetox.pdfIn PDF document text
- http://fabriquetextil.com/js/new/fckeditor/userfiles/file/38976625273.pdfIn PDF document text
- http://patrick-jardinage.fr/ckfinder/userfiles/files/23161732511.pdfIn PDF document text
- http://denge.aero/upload/files/75582071171.pdfIn PDF document text
- http://djk-winkel.de/images/uploads/file/vedoxegebaripimixagufuf.pdfIn PDF document text
- http://sutinlawkrabi.com/ckfinder/userfiles/files/3677330116.pdfIn PDF document text
- https://www.isnb.co.uk/wp-content/plugins/super-forms/uploads/php/files/6548233a54f07cda4c4c2e5a39950ecb/27401481436.pdfIn PDF document text
- http://thienlongadv.com/upload/files/15509971205.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_off0000c22e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC22E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000da40.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA40 | 17368 bytes |
SHA-256: 0d3d6db1a8df3e7fe05f2294e2fb61f7ed540ebc54949faf7ff9dea0a1a2b755 |
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font_02_sfnt_off00010667.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10667 | 10476 bytes |
SHA-256: cbfeee14b554bcdf4b482d8857b3831c72c008faa0290eaf89700a9b85eb50f6 |
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