MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, which is a common technique for executing malicious code within documents. The presence of numerous external URLs, many of which appear to be disposable or part of a link farm, suggests a phishing or malware distribution scheme. ClamAV detection and ML classification strongly indicate malicious intent, likely to trick users into downloading further malware or revealing sensitive information.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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 https://medvor.ru/uplcv?utm_term=after+we+fell+free+online+book PDF link annotation
- http://intertribo.sk/files/68608032146.pdfIn PDF document text
- http://vdi.vn/userfiles/file/dizominesiwizarutomudi.pdfIn PDF document text
- http://goldenstarhotel.vn/images/uploads/files/kurugenegovosaledijikoke.pdfIn PDF document text
- http://studioarclab.eu/userfiles/files/dikunumelupelebo.pdfIn PDF document text
- http://schroniskoorzechowce.pl/ckfinder/userfiles/files/bevasaluxupegakebob.pdfIn PDF document text
- https://narellesastro.com/userfiles/files/gutudawolakan.pdfIn PDF document text
- http://dexgerm.com/data/file/userfiles/files/20764675376.pdfIn PDF document text
- http://changjiujz.com/uploads/files/202109071645226102.pdfIn PDF document text
- http://ladyvenus.it/userfiles/files/15027365692.pdfIn PDF document text
- https://etadelloro.it/images/file/58360176298.pdfIn PDF document text
- https://southafricapools.com/contents/files/vusixowutuwamewawefovi.pdfIn PDF document text
- https://www.albriug.com/static/editor/ckeditor/ckfinder/upfile/files/65098831455.pdfIn PDF document text
- http://unipell.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161376ccaefec9---zalolusarodi.pdfIn PDF document text
- http://hoclaixebinhthuan.com/upload/contentFile/file/21399276570.pdfIn PDF document text
- https://genesisbehaviorcenter.com/wp-content/plugins/super-forms/uploads/php/files/395e3bcc8c293083bb892265981a118b/xumusigoxalidusunujuzux.pdfIn PDF document text
- http://www.sushmitamukherjee.com/fckimages/file/zavisaro.pdfIn PDF document text
- https://villatoscana-pi.it/userfiles/file/fibizijaxonititexexu.pdfIn PDF document text
- https://rasathantrananotech.com/ckfinder/userfiles/files/banetipado.pdfIn PDF document text
- http://xn--80aer5aza.xn--80aai5amepo3c7b7a.xn--p1ai/ckfinder/userfiles/files/buxukokepakom.pdfIn PDF document text
- http://bulk-supplies.com/userfiles/files/25396858106.pdfIn PDF document text
- http://fkhd.cz/data/img/loxavasapataxawomukiven.pdfIn PDF document text
- http://aotwresort.org/ckfinder/userfiles/files/81840729071.pdfIn PDF document text
- https://moraure.net/js/ckfinder/userfiles/files/92014580497.pdfIn PDF document text
- http://a1-automotivegroup.com/upload/files/13017971758.pdfIn PDF document text
- http://ventiliatoriai.lt/js/ckfinder/userfiles/files/23035956996.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_off0000dde6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDDE6 | 10176 bytes |
SHA-256: 7ea0ac599b16f662542ab92c7492aaccaaffdf57b2144c224c3f49f98d055e3e |
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font_01_sfnt_off0000f4d9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4D9 | 18156 bytes |
SHA-256: 356ca904533f4f34981aec10ff56d41ef35493b625e76ca9dd5c1519efa90752 |
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font_02_sfnt_off000123ca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x123CA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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