MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is identified as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. Heuristics indicate it functions as a link farm, directing users to multiple external PDF files hosted on various domains. The presence of numerous unknown URLs suggests a campaign to distribute further malicious content or conduct phishing operations.
Machine Learning
- Nyx PDF Classifier malicious score 0.9972
Heuristics 5
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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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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://heatexchangersolution.com/upload_fck/file/2021-9-4/20210904052812113597.pdf In PDF document text
- https://senesi-sklad.cz/userfiles/file/36823314095.pdfIn PDF document text
- https://mtestbd.com/assets/uploads/files/kevifowa.pdfIn PDF document text
- https://movimientofamiliadejesus.com/images/uploaded/file/tikonosozowoli.pdfIn PDF document text
- http://mnarch.it/userfiles/files/9538063554.pdfIn PDF document text
- http://emiem.pl/public/upload/ckfinder/userfiles/files/67412459790.pdfIn PDF document text
- http://gitishahjahanpur.org/ckfinder/userfiles/files/dinuzoxamunar.pdfIn PDF document text
- https://lexconsulting.ro/webroot/files/media/bufedibopolosepejon.pdfIn PDF document text
- http://nsmpublicschool.org/slbdavbatala/userfiles/file/79227376607.pdfIn PDF document text
- http://webmba.fr/client/logo/file/48769276084.pdfIn PDF document text
- https://2ruoteexpo.it/ckfinder/userfiles/files/53616804856.pdfIn PDF document text
- http://gps-ambroisie.com/ressource/site-image/files/fafasevavinepegivetupobi.pdfIn PDF document text
- http://ctnphrae.com/ckfinder/userfiles/files/zawit.pdfIn PDF document text
- http://myappartement.de/web/editor/files/18373643483.pdfIn PDF document text
- http://pagyesa.org/userfiles/file/20210910043510.pdfIn PDF document text
- https://reparationmobile.net/userfiles/file/87267322110.pdfIn PDF document text
- https://nbretail.com.vn/ckfinder/userfiles/files/18950565648.pdfIn PDF document text
- https://www.abaco-engineering.it/wp-content/plugins/formcraft/file-upload/server/content/files/1613bbf59b687a---2605386574.pdfIn PDF document text
- https://mahanakhon.pacedev.com/ckupload/files/nevolagipune.pdfIn PDF document text
- https://xn-----6kcabagcgfjsxjciriy6alkh6a7aqk.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/3fa7871362ba14405366d3d30ee87328/xuwagogeni.pdfIn PDF document text
- https://cylinder96.ru/admin/ckfinder/userfiles/files/67944402600.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=strike+force+kitty+onlinePDF 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_off0000d420.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD420 | 18996 bytes |
SHA-256: f681a2b3f76e3cc03a5cfdebd7ece47609a819157f9491e9290baf412a7a1654 |
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font_01_sfnt_off000105da.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x105DA | 10280 bytes |
SHA-256: 6858fb10832499650a964f61e6f6519c1d3bfad85325aa1b1f46a9e06167fc5c |
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font_02_sfnt_off00011d21.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D21 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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