MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by a machine learning classifier and ClamAV as malicious. It contains numerous embedded URLs, many of which point to disposable domains, suggesting a link farm designed to host malicious content. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' specifically indicates this behavior, and the presence of a 'download button' lure further supports a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9912
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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://vntdc.com/upload/fck/file/28477354525.pdf In PDF document text
- http://tzsunup.com/upload/83302648288.pdfIn PDF document text
- http://bastola.org/userfiles/file/5653597124.pdfIn PDF document text
- http://campingwithconvenience.com/files/files/zenozexi.pdfIn PDF document text
- https://0955205219.jwa.tw/userfiles/files/pisafilexop.pdfIn PDF document text
- http://pjzhengwang.com/upload/file/20210910_190646_191.pdfIn PDF document text
- http://fujavietnam.com/images/Download/20978503245.pdfIn PDF document text
- https://www.sibirprokat.ru/ckfinder/userfiles/files/lorazaji.pdfIn PDF document text
- https://krossi.ru/images/content/files/26283088426.pdfIn PDF document text
- https://indiantalentjunction.com/milan/media/12651387762.pdfIn PDF document text
- http://cukiernia.eu/upload/files/zaridonuvevopor.pdfIn PDF document text
- http://purel-biopharm.com/upload/files/kadal.pdfIn PDF document text
- http://christschoolblr.in/userfiles/file/76177011633.pdfIn PDF document text
- https://tierrettung-in-katalonien.org/ckfinder/userfiles/files/3274444345.pdfIn PDF document text
- http://salamino.pl/userfiles/file/32472287250.pdfIn PDF document text
- https://mudateconmigo.cl/wp-content/plugins/super-forms/uploads/php/files/215b945f6b2eb82366c3a4d028bbe730/solunugi.pdfIn PDF document text
- http://langeline.com/ckeditor/upload/files/2938128743.pdfIn PDF document text
- http://ljjxmining.com/uploadfile/file///2021090407424551.pdfIn PDF document text
- http://eau-msu.ru/ckfinder/userfiles/files/74970149146.pdfIn PDF document text
- https://primeodontorj.com/wp-content/plugins/super-forms/uploads/php/files/dc86a59bb3460938c6a314ece5e54d06/buponelexajexu.pdfIn PDF document text
- https://olterus.net/contents/files/tumiwopodelixuro.pdfIn PDF document text
- http://asqcert.net/files/files/febofanesiluwasexebadota.pdfIn PDF document text
- http://phongthuyphatloc.com/luutru/files/medikesib.pdfIn PDF document text
- http://warwick-ems.org/userfiles/file/muxetosebipopopawexafi.pdfIn PDF document text
- https://electroagro.es/pub/files/zadovudusuvulujefam.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=pokemon+black+2+rom+pokemonerPDF link annotation
- http://louisiana-arts.org.s150269.gridserver.com/siteuploads/editorimg/file/86534627086.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_off0000e3b7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE3B7 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000fbce.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFBCE | 10528 bytes |
SHA-256: c1f6911e02dbf45632e7627355cbcd57539b95f83e5387adaeeb3013e1e77193 |
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font_02_sfnt_off00011395.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11395 | 20108 bytes |
SHA-256: 404d93a2c063c15209288653d34d7639dc17a81f846fc0e07e38a09f8e22bdf9 |
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