MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains numerous links, many of which point to compromised CMS upload directories or disposable hosting. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' and the presence of URLs like 'https://ketchas.ru/uplcv?utm_term=download+zarchiver+pc' suggest a phishing or malware distribution attempt. ClamAV detection and ML classification further support its malicious nature, indicating it's likely a phishing or trojan delivery mechanism.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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://ketchas.ru/uplcv?utm_term=download+zarchiver+pc PDF link annotation
- https://www.rath-catering.de/wp-content/plugins/formcraft/file-upload/server/content/files/16133f977d893c---71896665333.pdfIn PDF document text
- http://surestegc.org/documentos/file/zekedofalezetevigisotebu.pdfIn PDF document text
- http://mea-travel.pl/userfiles/file/zezopezivodogoje.pdfIn PDF document text
- http://ap-qatar.com/userfiles/files/mumapugar.pdfIn PDF document text
- http://banglatalkies.com/dynamic-images/cms/file/39237073414.pdfIn PDF document text
- http://goldmustang.ru/files/files/vakotujujefaxa.pdfIn PDF document text
- https://bnbtravels.com/ckfinder/userfiles/files/mimurunoralumufu.pdfIn PDF document text
- http://dsagco.com/Upload/file/vumuzoxivofitegat.pdfIn PDF document text
- https://ljlconst.com/admin/images/file/rovevezizeparino.pdfIn PDF document text
- https://mycocoa.org/images/upload/files/32571060203.pdfIn PDF document text
- https://jetaime-shop.dvsportbg.com/files/kokebesuwojabed.pdfIn PDF document text
- https://grupa-energia.pl/attachments/file/37074392290.pdfIn PDF document text
- http://zlzljc.com/uploadfile/file///2021090113121789.pdfIn PDF document text
- https://whatshoulditcostme.com/userfiles/file/76114054036.pdfIn PDF document text
- http://karinameal.ru/imgdish/files/37195564981.pdfIn PDF document text
- http://96rangjai.com/userfiles/file/wenafivukisanikeduruno.pdfIn PDF document text
- https://dolupin.com/calisma2/files/uploads/zutegofulejen.pdfIn PDF document text
- http://www.kroonzuivel.nl/ckfinder/userfiles/files/22528151729.pdfIn PDF document text
- https://fenicia.uy/fenicia.com.uy/uploads/files/88398822612.pdfIn PDF document text
- http://magicfood-cn.com/files/20210907182320.pdfIn PDF document text
- http://conelser.hu/fck_uploads/file/nuxisadoragakiji.pdfIn PDF document text
- https://www.quatainvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16139db2f5f07f---99386340736.pdfIn PDF document text
- https://divorcioconsensual.com.br/wp-content/plugins/super-forms/uploads/php/files/e965feef69dfad0bf79b6019bd9dc338/derapifopotoxowa.pdfIn PDF document text
- http://foodzipo.com/uploads/userfiles/files/gomak.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_off0000d728.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD728 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ef3f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF3F | 10556 bytes |
SHA-256: bc1c79b130982909438a170afa693294a724518deeb0711a65c6ff93b2314fc6 |
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font_02_sfnt_off00010743.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10743 | 17820 bytes |
SHA-256: 9697d6cbe0858528eba64e560f29909437bd48362efe1b8338ae0c9d6e76699d |
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