MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and multiple links to external PDFs hosted on various domains. One heuristic specifically flags a link to an algorithmically-generated URL, and another identifies the PDF as a link farm on disposable hosting. The ClamAV detection and ML classifier strongly indicate malicious intent, likely for phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 7
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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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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://wastran.ru/uplcv?utm_term=narcissist+and+triangulation PDF link annotation
- http://transchem-tech.com/Uploadfiles/files/lekuxemerok.pdfIn PDF document text
- http://linpus.com/app/webroot/userfiles/files/devarovitixatapozexegezap.pdfIn PDF document text
- http://studiomistretta.com/userfiles/files/64423605511.pdfIn PDF document text
- https://esvigo.com/upload/files/84229933550.pdfIn PDF document text
- http://am-assets.com/aom/magnolia/userfiles/file/jenox.pdfIn PDF document text
- http://cmuniontravel.com/userfiles/file/jepem.pdfIn PDF document text
- https://thesmithgrouphouston.com/wp-content/plugins/super-forms/uploads/php/files/2a8a3d6a4817e991ce85e5325e107109/29253026683.pdfIn PDF document text
- http://clinicaveterinariacittadivignola.com/userfiles/files/21905239233.pdfIn PDF document text
- http://csc0351.com/userfiles/file/20210919092548_n8tgo6.pdfIn PDF document text
- http://maytinhnangdong.com/files/uploads/editor/files/62607105713.pdfIn PDF document text
- https://portalbime.com/UploadedFiles/New/file/rikofuren.pdfIn PDF document text
- http://dennehylaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/vewepajosixafovasesiloro.pdfIn PDF document text
- http://kursadowicz.pl/Upload/file/54937411339.pdfIn PDF document text
- https://bomberosdenavarra.com/userfiles_nexo/files/nakupuniko.pdfIn PDF document text
- http://mynotary.ca/sites/all/sites/mynotary.ca/files/69792043527.pdfIn PDF document text
- http://ameshamagazine.com/js/upload/files/jimakaropumagaj.pdfIn PDF document text
- https://safarekhoob.ir/basefile/safarekhoobir/files/23997324717.pdfIn PDF document text
- https://chsromania.managenet.ro/images/file/17319016658.pdfIn PDF document text
- https://saintarseny.ca/sites/saintarseny.ca/files/file/45602155824.pdfIn PDF document text
- http://huerural.com/uploads/image/files/61515692580.pdfIn PDF document text
- http://linker-apps.com/files/vekusufujitub.pdfIn PDF document text
- https://projekt-lesen.de/userfiles/file/guwabagoguj.pdfIn PDF document text
- http://radio-salsa.com/php/rs/filesupload/file/pazufuromevumuwogire.pdfIn PDF document text
- http://roberthalasz.eu/uploads/file/63796011117.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_off0000b354.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB354 | 14728 bytes |
SHA-256: 44c12529a378716591fdf9e7108684b52132baccc89b44e24c38b17a3ab24ccf |
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font_01_sfnt_off0000d828.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD828 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f03f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF03F | 10488 bytes |
SHA-256: 53263dc7fa4ea4babf6cf0b187f63a81bc1f972b290e3de0a8fe34a76861afaf |
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