MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The document contains numerous embedded URLs, many pointing to compromised CMS upload directories or disposable hosting, suggesting it functions as a link farm to distribute further malicious content. The presence of external URI heuristics and the 'PDF_SEO_DISPOSABLE_LINK_FARM' rule further support this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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://coretry.ru/uplcv?utm_term=android+internal+storage+missing+space PDF link annotation
- https://drjou-vc.com/upload/files/ketov.pdfIn PDF document text
- http://antonellascarpittadesigner.it/userfiles/files/19722193185.pdfIn PDF document text
- http://twozonechickenlasvegas.com/uploads/files/gexozej.pdfIn PDF document text
- http://feriaalainversa.com/uploaded/files/25278481214.pdfIn PDF document text
- https://polaria.cz/images/file/78589804609.pdfIn PDF document text
- http://thsport.dk/ckfinder/userfiles/files/mifepowe.pdfIn PDF document text
- https://www.cir.cloud/wp-content/plugins/formcraft/file-upload/server/content/files/161303be7a68ff---titewexedokozidovil.pdfIn PDF document text
- http://thegioituigiay.net/uploads/files/luxotawigemasinurosozim.pdfIn PDF document text
- https://kisikana.hr/UserFiles/files/rufev.pdfIn PDF document text
- http://cadelupo.it/userfiles/files/nifoj.pdfIn PDF document text
- https://lesura.net/userfiles/file/81530133376.pdfIn PDF document text
- http://weiken-rc.com/upload/files/94488445350.pdfIn PDF document text
- https://www.yoursurveysurveyors.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613aea495ebcf---6101456544.pdfIn PDF document text
- https://thehouseconcert.com/ckfinder/userfiles/files/49278783741.pdfIn PDF document text
- https://cualuoihoanmy.com/uploads/userfiles/file/jiwenomuxi.pdfIn PDF document text
- http://tinavaron.com/ckfinder/userfiles/files/boxajetokux.pdfIn PDF document text
- https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/hrga2mcgecgb511olhsnvbu91f/95510985525.pdfIn PDF document text
- http://adamlegal.com/userfiles/file/siguwavara.pdfIn PDF document text
- http://p-jtech.com/userData/board/file/tobiluxizisefudaxu.pdfIn PDF document text
- http://shipagents.nl/uploadfiles/file/fudam.pdfIn PDF document text
- https://kenhquangcao.vn/uploads/files/97215329276.pdfIn PDF document text
- http://sva-jeanroze.com/xmedia/file/luputupevologumebosomo.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_off0000da78.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA78 | 18308 bytes |
SHA-256: 61daea6a8b0ebffd36c8788ec85ef52577bc883dd5c0e55320737e8b38d4a2b8 |
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font_01_sfnt_off000109f1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x109F1 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012208.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12208 | 10836 bytes |
SHA-256: 1f89fdb950934d850310a76cf2d3d5a990a7ce16b0a780cc94aeef0cf2d17e8f |
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