MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains multiple embedded URLs, with one identified as a random, algorithmically-generated link to a PDF file hosted on a disposable domain. ClamAV and ML classifiers also flagged this file as malicious, specifically as a phishing trojan. The presence of numerous external links suggests an attempt to redirect users to malicious content or phishing sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9972
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 to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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://franciscovalles.comtraining.cl/userfiles/files/zodakesebu.pdf In PDF document text
- http://elma-itc.ru/!upload/files/64239201440.pdfIn PDF document text
- https://quatden.vn/webroot/img/files/rexude.pdfIn PDF document text
- http://greenmodels.ru/uploads/files/24158361954.pdfIn PDF document text
- http://centronegozi.com/public/2481303217.pdfIn PDF document text
- https://jagamimpi.info/contents/files/34452011879.pdfIn PDF document text
- http://zerosquareonline.com/file/dubatexegixarajojurut.pdfIn PDF document text
- http://hublihorse.com/uploads/userfiles/files/6029398584.pdfIn PDF document text
- http://crmrealty360degree.in/ci/userfiles/files/fuvovu.pdfIn PDF document text
- https://seeandhearbetter.ie/img/shop/contents/92244833183.pdfIn PDF document text
- http://marleenjansen.nl/images/uploadfiles/67395862986.pdfIn PDF document text
- http://av-jet.ru/userfiles/file/subomefitobebufisaxipe.pdfIn PDF document text
- http://salman-is.com/userfiles/file/48314687085.pdfIn PDF document text
- http://partner-support.net/user_data/userfiles/files/gogupa.pdfIn PDF document text
- https://pluviaterra.mx/wp-content/plugins/super-forms/uploads/php/files/3547337ca8d3c2879a063c5d92208ee5/gujaretalejifupajepajebav.pdfIn PDF document text
- http://tsg-edinstvo.ru/userfiles/file/wuxarosomuporotatuvipive.pdfIn PDF document text
- http://greenlivinggarden.com/htdocs/UserFiles/file/sunefofego.pdfIn PDF document text
- http://ettorebelfioreliutaio.it/userfiles/files/nisobanudexavibimu.pdfIn PDF document text
- https://ximatinhdongnai.com/app/webroot/files/images/pages/files/33451073738.pdfIn PDF document text
- http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/49b4muecj5bfh9nllgduqep1v1/dagusewemegufe.pdfIn PDF document text
- https://wecareu.net/ckfinder/userfiles/files/19174489888.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=first+name+last+name+and+middle+namePDF 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_off0000d79a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD79A | 18212 bytes |
SHA-256: e2c88aebc127cdc11163431117d19d655a99cfc8e93753e9871639bf75a1c7a2 |
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font_01_sfnt_off00010736.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10736 | 10264 bytes |
SHA-256: a423dd2aba1e84570e7e5cb3cccc12802c7e13738859302ff7de4d2ae60953f4 |
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font_02_sfnt_off00011e37.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E37 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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