MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded URLs, many of which point to compromised websites or are structured as link farms, indicating a phishing or malware distribution attempt. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or serving malicious content via these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://univerosg.com/ckfinder/userfiles/files/gitezufuzonisemumi.pdf In PDF document text
- http://arniuniversity.in/ci/userfiles/files/mefixososugakawanobavul.pdfIn PDF document text
- http://sooclose.eu/upload/File/fopuvu.pdfIn PDF document text
- http://quickfix-poland.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614398d8e99f3---risinixomemuj.pdfIn PDF document text
- http://drzwiukryte.pl/userfiles/file/loredopo.pdfIn PDF document text
- http://tajilin.com/upload/files/62918107081.pdfIn PDF document text
- http://www.gainerwindows.ca/wp-content/plugins/super-forms/uploads/php/files/2aofi6muc21sbroedojd3n4fu6/29332517230.pdfIn PDF document text
- http://lambanghieuquangcaogiare.net/vietkiendo/upload/file/82292721681.pdfIn PDF document text
- http://mueblesdepladur.es/1/userfiles/file/76702541947.pdfIn PDF document text
- http://poaglasses.com/uploads/files/202109140329175371.pdfIn PDF document text
- http://rayocazar.com/images/elfinder-1.1/files/file/72023410053.pdfIn PDF document text
- http://italy-ex.com/images/blog/file/mumedafafu.pdfIn PDF document text
- http://greenhere.cn/upload/ckimg/files/202109021617475354.pdfIn PDF document text
- http://cu-hinothai.com/ckfinder/userfiles/files/7236019172.pdfIn PDF document text
- http://n2nnetworks.com/files/others/8752081447.pdfIn PDF document text
- http://lev-steklo.ru/userfiles/file/85489389094.pdfIn PDF document text
- http://inbjnews.com/data/cheditor/0603/files/zofuxewitifowar.pdfIn PDF document text
- https://www.bocamvigliesrooms.com/wp-content/plugins/super-forms/uploads/php/files/c47a20b84228fb020aacd61598b66cca/dofuj.pdfIn PDF document text
- http://venkateshservices.com/uploads/90771329776.pdfIn PDF document text
- http://mobilni-kadernictvi.cz/files/file/50462903259.pdfIn PDF document text
- https://kheops-so.fr/ckfinder/userfiles/files/2378347597.pdfIn PDF document text
- http://www.bewegeninarnhem.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1614e3ec0265c0---mituj.pdfIn PDF document text
- http://scenekunstskolen-efteruddannelsen.dk/ckfinder/userfiles/files/20685404738.pdfIn PDF document text
- https://dp-engineers.com/admin/userfiles/file/32239596501.pdfIn PDF document text
- http://2018.letnifestiwal.pl/ckfinder/userfiles/files/45234661709.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=idm+download+with+crack+2020PDF link annotation
- 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_off0000b19f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB19F | 10708 bytes |
SHA-256: 67a1235bb7dd999e6725adbd4a1837e337bdae9071f5f9b037ebc2145a5a13e1 |
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font_01_sfnt_off0000ca03.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA03 | 16092 bytes |
SHA-256: 2bfd2c4caa94c3d389b05081a03f23fff2d68c6f7590ed214df80359e08e0bf5 |
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font_02_sfnt_off0000f2a4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2A4 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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