MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a large number of external URIs, many of which are hosted on disposable domains, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely to deliver a secondary payload or phish for credentials. The presence of JavaScript points to its use in executing malicious actions within the PDF.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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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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://letresorellebio.it/userfiles/files/betubagumuj.pdf In PDF document text
- http://multi-accueil.fr/ressource/site-image/files/gezuvo.pdfIn PDF document text
- http://streetnn.ru/data/upload/ck/files/4088516753.pdfIn PDF document text
- http://falconfam.com/ckfinder/userfiles/files/lakaxonosezelizorefe.pdfIn PDF document text
- http://slkuang.com/v15/Upload/file/2021919846576113.pdfIn PDF document text
- https://cuichi177.com/uploads/files/202109210834467032.pdfIn PDF document text
- https://lifo-sea.com/ckfinder/userfiles/files/73193371766.pdfIn PDF document text
- http://portableandcool.com/files/files/38878063843.pdfIn PDF document text
- http://toptoptraining.ru/img/upload/file/79634555364.pdfIn PDF document text
- https://study-go.info/wp-content/plugins/super-forms/uploads/php/files/cb420c55dca7853e421a2fb806cd7558/85742664406.pdfIn PDF document text
- http://apothepharma.com/upload/files/47662335292.pdfIn PDF document text
- http://elma-itc.ru/!upload/files/257025276.pdfIn PDF document text
- http://altinay-law.com/images/file/67078730903.pdfIn PDF document text
- http://lisaarkin.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/nojejusovobex.pdfIn PDF document text
- https://marlin-shop.ru/ckfinder/userfiles/files/kubefipigumuko.pdfIn PDF document text
- http://www.deco-interieure.com/userfiles/file/vetavijupemuvuteteji.pdfIn PDF document text
- https://panificioilcavaliere.it/userfiles/files/45591665266.pdfIn PDF document text
- https://gulfb2b.com/userfiles/file/jowuzozax.pdfIn PDF document text
- http://uni-farm.pl/ckfinder/userfiles/files/50410409823.pdfIn PDF document text
- http://csc-028.com/userfiles/file/20210911005347_7m2opr.pdfIn PDF document text
- https://chinatupai.com/web/js/ckfinder/userfiles/files/67325664351.pdfIn PDF document text
- https://psystat.net/candyticket/uploads/page_images/files/98870383839.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=router+setup+page+apk+downloadPDF link annotation
- https://bxthirteen.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/6b239df550902c64926d7ff8fc54f5c3/riworunidik.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_off0000ade8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xADE8 | 16184 bytes |
SHA-256: ad911784fa29454de63e1da3de29865d76de6047601f8b319fb388845fa47f51 |
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font_01_sfnt_off0000d6f9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD6F9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000ef10.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF10 | 10796 bytes |
SHA-256: 65088a8376961acb2b6bbff1e751e9df2aa8f542384aa6820583a591f38df5c0 |
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