MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF was flagged as malicious by a machine learning classifier and ClamAV. It contains numerous embedded URLs, many of which point to compromised websites or disposable hosting, suggesting a link farm or phishing lure. The presence of external URI heuristics and the ML classification indicate the file's intent is to redirect the user to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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://smidgel.ru/uplcv?utm_term=bomb+it+4+y8 PDF link annotation
- http://www.teaterskolen-efteruddannelsen.dk/ckfinder/userfiles/files/joxunibiworeva.pdfIn PDF document text
- https://ribaczpeter.hu/files/file/fumalebelo.pdfIn PDF document text
- http://huspanda.com/data/ckfinder/files/wewipibimi.pdfIn PDF document text
- http://designklasse.de/ckfinder/userfiles/files/34142559497.pdfIn PDF document text
- https://www.q-jin.ne.jp/ckfinder/userfiles/files/769019169.pdfIn PDF document text
- http://anonelectronics.com/admin/fckeditor/editor/filemanager/connectors/php/upload_jpg/file/202109050828106849.pdfIn PDF document text
- http://brothersaluminium.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/1614434c553051---40525599009.pdfIn PDF document text
- http://bankerz.in/qpic/files/83618192804.pdfIn PDF document text
- http://a1-automotivegroup.com/upload/files/gazazuwejituzomiji.pdfIn PDF document text
- http://trieuduong.com/images/Download/fajemo.pdfIn PDF document text
- https://allianztc.ro/files/file/57073461676.pdfIn PDF document text
- https://longhoang.vn/upload/files/27219632565.pdfIn PDF document text
- https://yoimart.com/upload/file/20210906172758.pdfIn PDF document text
- http://acunambalaj.com/adenoto/upload/files/murepakapumuxafol.pdfIn PDF document text
- http://unewstoday.com/task/userimages/file/47984661611.pdfIn PDF document text
- http://longchimvac.net/app/webroot/uploads/files/53671344751.pdfIn PDF document text
- http://manu-transport.com/documents/file/tisanijutabov.pdfIn PDF document text
- http://leeharringtonhomes.com/userfiles/file/63160579238.pdfIn PDF document text
- http://chagatea.ru/wp-content/plugins/super-forms/uploads/php/files/376a56ab080145ebfbbf16b48339923c/dulunorimodat.pdfIn PDF document text
- https://quangcaonoithatgiahung.com/admin/webroot/upload/image/files/kewiwonifelikejovujigu.pdfIn PDF document text
- https://www.swx.global/wp-content/plugins/super-forms/uploads/php/files/a7eaeef2481e8be1f0354c77b23ebab2/36011388745.pdfIn PDF document text
- http://cyuanmei.com/userfiles/file/20273262225.pdfIn PDF document text
- http://studio70.eu/userfiles/files/sisibobofidevusuvekasisa.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_off0000ce0b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCE0B | 16736 bytes |
SHA-256: a1c2dbc30f216faaeb089cee0805bdbb74d7206ef9b1d30b2fa468f2ca48e8c4 |
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font_01_sfnt_off0000f8ba.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8BA | 10148 bytes |
SHA-256: 2d5339c9fcf2a587d2e967c30a486a6f69a1366dcd5d6a1d0aadf9a002561be6 |
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font_02_sfnt_off00010f83.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F83 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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