MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous external URLs, many pointing to compromised CMS uploads or disposable hosting, suggesting a link farm designed to redirect users. The presence of PDF_URI and PDF_SEO_DISPOSABLE_LINK_FARM heuristics further supports this, indicating the PDF's primary function is to distribute links. Although no scripts were explicitly extracted, the nature of the URLs and the 'Phishing.Trojan' detection suggest a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9971
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://chcial.ru/uplcv?utm_term=air+pollution+control+a+design+approach+pdf+download PDF link annotation
- http://sloplast.com/userfiles/files/72171071528.pdfIn PDF document text
- http://project-lovcen.me/userfiles/file/lapag.pdfIn PDF document text
- http://charontrade.hu/data/file/14387494097.pdfIn PDF document text
- https://bawaniint.com/ckfinder/userfiles/files/fofativemipo.pdfIn PDF document text
- http://roland-toys.eu/userfiles/file/77520100615.pdfIn PDF document text
- https://proektasis.gr/admin/spaw2/uploads/files/8871607357.pdfIn PDF document text
- http://www.hkqi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609053ab5ca61---28626353139.pdfIn PDF document text
- https://vpmemorial.net/images/file/doxanonakolotepenulezifo.pdfIn PDF document text
- http://sh8ke.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c6acc1f31f7---wonagunazeg.pdfIn PDF document text
- http://brenna-ski.pl/userfiles/file/ruxurulamox.pdfIn PDF document text
- http://lukasikgroup.pl/Image/files/parazudebanulanunidovenew.pdfIn PDF document text
- https://leciv.fr/uploads/FCK_files/file/44414385407.pdfIn PDF document text
- https://www.carlosfunes.es/wp-content/plugins/formcraft/file-upload/server/content/files/160a13a98990e4---vajegafixekutivuravub.pdfIn PDF document text
- http://nexxosrealty.com/userfiles/files/25608113800.pdfIn PDF document text
- https://areicon.com/images/file/kopogifesunedikufunip.pdfIn PDF document text
- https://www.glasswindowequipment.com/wp-content/plugins/super-forms/uploads/php/files/715332758fe98702fea21f7750b0cb1a/panotufujesawozali.pdfIn PDF document text
- https://quanticabtl.com/cms_2018_quantica/sgi_userfiles/userfiles/files/76121795125.pdfIn PDF document text
- http://vidol.nl/userfiles/file/3967760569.pdfIn PDF document text
- http://helpibr.org/clients/f/fe/feaff840d005acecac0f151e8679c8db/File/28706924714.pdfIn PDF document text
- http://osteriadelcampanile.com/userfiles/files/negamorigegojirekidododi.pdfIn PDF document text
- http://ipvoicenj.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e38f4b8e448---9713068152.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_off0000b3d3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB3D3 | 11068 bytes |
SHA-256: 9d5e280cadaaa4934aa28ff73aa071daf1b6b922664b7d3ef72fd79b85075213 |
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font_01_sfnt_off0000cd69.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD69 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000e57b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE57B | 17528 bytes |
SHA-256: c0fe9dc072862c869ea4896848c322a6451d4b199b225e187e5ec818f59a1943 |
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