MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was flagged by ML classifiers and ClamAV as malicious, with a critical heuristic indicating a Pdf.Phishing.Trojan. The presence of embedded JavaScript and a large number of external URIs, many pointing to potentially disposable hosting, strongly suggests a phishing or malware distribution attempt. The document body was unreadable, but the heuristics indicate a link farm strategy.
Machine Learning
- Nyx PDF Classifier malicious score 0.9840
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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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 http://originalcheck.it/public/img_admin/file///29702910558.pdf In PDF document text
- https://mediaget.ru/userfiles/files/23322873569.pdfIn PDF document text
- https://psystat.net/candyticket/uploads/page_images/files/wamevekisafeporenaxasugag.pdfIn PDF document text
- https://taumed.kz/upload/2021/09files/210920155642531757czkyv.pdfIn PDF document text
- http://horizonpestservices.com/userfile/60088011747.pdfIn PDF document text
- http://cobe-ing.it/userfiles/files/mukelajavi.pdfIn PDF document text
- https://www.edutechusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135959e2c127---ruwamumodaxasopaxefidu.pdfIn PDF document text
- http://hak-al.com/resimler/files/talibojujajavewalulon.pdfIn PDF document text
- http://erex.hu/upload/file/kizizisapogevivizisazujud.pdfIn PDF document text
- http://flirtproducties.nl/ckfinder/userfiles/files/wemitafipojovaw.pdfIn PDF document text
- https://karlholmbygg.se/UserFiles/files/30667865054.pdfIn PDF document text
- http://musclecar-taps.com/js/upload/files/jikojisoza.pdfIn PDF document text
- http://designerhouse.ru/upload/files/29544280007.pdfIn PDF document text
- http://parfumerieindex.nl/images/uploads/dalunekezizidamobu.pdfIn PDF document text
- http://ylpcl.com/ckfinder/userfiles/files/22083798309.pdfIn PDF document text
- http://actlogistic.vn/upload/editor/files/30090404497.pdfIn PDF document text
- http://verkaufs-akademie.com/userfiles/file/pavumakorojuvokara.pdfIn PDF document text
- http://gibisch.info/files/files/1218102991.pdfIn PDF document text
- https://insp.biz/img/file/redidufegorudatomafitag.pdfIn PDF document text
- http://hanboo.cn/Uploads/file/2021092807525170554.pdfIn PDF document text
- http://linpus.com/app/webroot/userfiles/files/nuxepaw.pdfIn PDF document text
- https://turbooto.vn/upload/files/37364730342.pdfIn PDF document text
- https://objednavky.dortovapohotovost.cz/obrazky/files/vodimonujebuzirif.pdfIn PDF document text
- http://ylplj.com/ckfinder/userfiles/files/242902611.pdfIn PDF document text
- http://bigcool.net/webroot/img/files/67005621655.pdfIn PDF document text
- http://lmtechsolution.com/userfiles/82142636331.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=activer+stockage+de+masse+androidPDF 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_off0000bff3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBFF3 | 10804 bytes |
SHA-256: 7e7a1faa1341f2326a3d48fa05a9ab3480d60635df736c09eb7812cd64992ee8 |
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font_01_sfnt_off0000d8bd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8BD | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f0cf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0CF | 19252 bytes |
SHA-256: 46e587c4eaf1a4d1955bb96afb4b92da074274c1f054fc5a666edf83fe671065 |
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