MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many of which point to compromised CMS upload storage or are part of a link farm on disposable hosting, suggesting a phishing or malware distribution scheme. The presence of PDF-specific heuristics like 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' and 'PDF_SEO_DISPOSABLE_LINK_FARM' further supports this, indicating the PDF is used to host or redirect to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9966
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://wastran.ru/uplcv?utm_term=how+to+prepare+for+soc+analyst+interview PDF link annotation
- https://bahia-group.com/ckfinder/userfiles/files/tapogatujibugoxiku.pdfIn PDF document text
- http://www.nagsa.es/ckfinder/userfiles/files/bisataw.pdfIn PDF document text
- https://autotronics.vn/userfiles/file/jagegexeposikovesur.pdfIn PDF document text
- http://alexlunacoach.com/img/editor/file/76478442025.pdfIn PDF document text
- http://kotolantopeni.cz/file/66664492862.pdfIn PDF document text
- http://xn--h1aaebbkfib4a.xn--p1ai/sadm_files/57663990328.pdfIn PDF document text
- http://interno-kazan.ru/upload/files/kutef.pdfIn PDF document text
- https://juraganmonyet.com/contents/files/38432500764.pdfIn PDF document text
- https://www.auto-ecole-acm.com/ckfinder/userfiles/files/97571155180.pdfIn PDF document text
- http://tuanlongland.com/upload/files/xefox.pdfIn PDF document text
- http://svs-pm.com/wp-content/plugins/formcraft/file-upload/server/content/files/16089c2b66084d---32937871527.pdfIn PDF document text
- https://area34.info/wp-content/plugins/super-forms/uploads/php/files/an7niqpntv9jpeisvki9vhg2j7/difofut.pdfIn PDF document text
- http://aberdeeneyes.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1608159c010968---62539674490.pdfIn PDF document text
- http://divapharma.com/uploaded/file/muzujadifo.pdfIn PDF document text
- http://actionelectric.pt/www/wp-content/plugins/formcraft/file-upload/server/content/files/160c915320972b---pexefusavokowibo.pdfIn PDF document text
- http://donghocitizenchinhhang.com/uploads/userfiles/file/67685166752.pdfIn PDF document text
- http://www.veronicaneal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/160bd4f8d371d2---safekise.pdfIn PDF document text
- https://kanalprofi.at/UserFiles/file/46750048097.pdfIn PDF document text
- http://creativetechno.in/userfiles/file/86072610927.pdfIn PDF document text
- http://eapver.com/upload/ckimg/files/202108181653542031.pdfIn PDF document text
- http://vegasoft.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1609ba6b07ef76---32740049405.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_off000101e8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101E8 | 16576 bytes |
SHA-256: 60d41282c674a96641268008d082eafd97f960d2a1b629286a7d61c405c8274f |
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font_01_sfnt_off00012cd7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12CD7 | 10732 bytes |
SHA-256: 3d31d5d51fe6c093cbeb20b15168661acc260c0cd77201f0be8683d8c29e14c8 |
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font_02_sfnt_off000145b0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x145B0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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