MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, which is a common technique for executing malicious code. It also features a link farm with numerous URLs pointing to potentially compromised websites, including one hosted on a compromised WordPress upload directory. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or to download further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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=dream+league+soccer+2020+offline+download PDF link annotation
- https://ikuseikyokai.jp/ckmedia/files/50796354635.pdfIn PDF document text
- http://www.louthadventures.ie/wp-content/plugins/formcraft/file-upload/server/content/files/16138a576d35f4---34654152534.pdfIn PDF document text
- https://too.kg/wp-content/plugins/super-forms/uploads/php/files/700566d0680c124193837b8676ced913/mosawatotaxi.pdfIn PDF document text
- http://thibidi.vinadesign.info/uploads/images/files/dekofuzeki.pdfIn PDF document text
- https://rent-1.es/ckfinder/userfiles/files/71439114128.pdfIn PDF document text
- https://daqing-jewelry.com/uploads/files/202109140632111566.pdfIn PDF document text
- https://tecnibat.net/uploads/archivos/97310089913.pdfIn PDF document text
- https://bankkartya.hu/js/ckfinder/userfiles/files/depuku.pdfIn PDF document text
- http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/1613d96f653f58---zaxebufuvodujes.pdfIn PDF document text
- https://joepromenshealth.com/wp-content/plugins/super-forms/uploads/php/files/30832d38d93d1b8baef75772be85f12d/40716854170.pdfIn PDF document text
- http://fotocaroli.it/userfiles/files/84900039811.pdfIn PDF document text
- http://x-site.by/upload/editor/files/movusegifililirozikerunog.pdfIn PDF document text
- http://sedaciesupravy.sk/media/file/36179026162.pdfIn PDF document text
- https://kuraniterbiye.com/resimler/files/91133617904.pdfIn PDF document text
- http://noithatmfc.com/media/ftp/file/pegemelolosipemaxodabiki.pdfIn PDF document text
- https://fiberglasssupplydepot.com/userfiles/files/turelomufokisisikal.pdfIn PDF document text
- https://garnizone.com/userfiles/file/64860638507.pdfIn PDF document text
- http://sinoscaform.com/upload/ckimg/files/202109040254438815.pdfIn PDF document text
- https://emilline.dk/ckfinder/userfiles/files/gepoxiveruzimi.pdfIn PDF document text
- http://www.accl-calibration.com/login/ckfinder/userfiles/files/72322367276.pdfIn PDF document text
- http://4998horo.gmmwireless.com/contents/files/38354433258.pdfIn PDF document text
- http://pronobile.de/catalog/file/20044480328.pdfIn PDF document text
- http://jamalcar.com/userfiles/file/57884191847.pdfIn PDF document text
- http://psychanalyste-gard.fr/ckfinder/userfiles/files/kaxazasupegufoginejugetap.pdfIn PDF document text
- http://sarljarry.com/userfiles/file/puwafas.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_off0000e3c6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE3C6 | 17212 bytes |
SHA-256: 152cee0afcb6b65a3c49561b68ebd8793eed667d2adf5b2697149fac69a6ef5e |
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font_01_sfnt_off0001107f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1107F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012896.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12896 | 11152 bytes |
SHA-256: 2b13b5a9a87a9248ef793a5da1751a6037070e04a9f597c393f8227f3f2f57cd |
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