MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 User Execution: Malicious File
The PDF was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. Heuristics reveal it functions as a link farm, directing users to compromised WordPress upload storage and other unknown domains. The presence of numerous external URIs and the PDF_SEO_DISPOSABLE_LINK_FARM heuristic suggest a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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 http://chicagohalo.com/wp-content/plugins/formcraft/file-upload/server/content/files/161364c3edf5bf---99481367950.pdf In PDF document text
- http://jfac.kr/ckfinder/userfiles/files/dazibusefe.pdfIn PDF document text
- https://keongracun.org/contents/files/72616891602.pdfIn PDF document text
- https://flour.co.uk/ckfinder/userfiles/files/54591958926.pdfIn PDF document text
- https://mymovingestimate.com/wp-content/plugins/super-forms/uploads/php/files/96cc5c5022d5b8aab1be48523b963390/jiwufibuturaravonigoxiso.pdfIn PDF document text
- https://hotelexpert.ro/uploads/files/57039349803.pdfIn PDF document text
- https://www.caissedesecolesdu5eme.fr/backoffice/ckfinder/userfiles/files/4765440569.pdfIn PDF document text
- https://spyboarcams.com/files/fiwanupilevedunevibefus.pdfIn PDF document text
- http://matras-devison.ru/upload/file/joxelelel.pdfIn PDF document text
- http://quickfix-poland.com/wp-content/plugins/formcraft/file-upload/server/content/files/161394229a240d---67714712106.pdfIn PDF document text
- http://langfordfinancialservices.com/userfiles/files/5289890704.pdfIn PDF document text
- http://andreuma.madteam.net/ckfinder/userfiles/files/1533043844.pdfIn PDF document text
- https://www.cukoyem.com.tr/wp-content/plugins/super-forms/uploads/php/files/bncn1miipnhfbc5g36mmaus4q2/97644708984.pdfIn PDF document text
- http://52963566.com/upload/file/202109060302304181.pdfIn PDF document text
- http://marketingnews.fr/images/file/66585175745.pdfIn PDF document text
- http://jewelry-shopping-city.com/uploads/files/202109060252253770.pdfIn PDF document text
- http://ozgu-yapi.com/firma/files/xozurakupe.pdfIn PDF document text
- http://a2kat.ru/userfiles/file/47877961459.pdfIn PDF document text
- https://campermagazine.tv/public/file/xewakiba.pdfIn PDF document text
- http://joltiy.ru/uploads/files/gajomuwumegabivowov.pdfIn PDF document text
- http://www.sosonomo.com/ckfinder/userfiles/files/vigafazupuribob.pdfIn PDF document text
- https://earthchartercities.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613989690bced---bivetuvesovigafazub.pdfIn PDF document text
- https://girilawfirm.com/content_files/files/sotiraxujolokavetenenamob.pdfIn PDF document text
- http://nuitsdartistes.eu/images/file/23151765616.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=a+quiet+place+2+film+downloadPDF 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_off0000cb8f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB8F | 17792 bytes |
SHA-256: 496a2d935a450ed7dd12d70fc92aa15b35fb2558c0aaa624b7ad7c7c721aaede |
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font_01_sfnt_off0000f9b6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF9B6 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000111cd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x111CD | 10944 bytes |
SHA-256: d10c44ff972c796797a38ee361f174735161235a4031b6b117a4894a4508d378 |
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