MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains numerous external URIs and is identified as a link farm on disposable hosting, suggesting a phishing or malware distribution scheme. While no scripts were explicitly extracted, the PDF format itself can embed JavaScript for malicious actions, and the presence of external links points towards a T1566.001 (Spearphishing Attachment) attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
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 https://chcial.ru/uplcv?utm_term=restassured+interview+questions+and+answers PDF link annotation
- http://edeins.com/userfiles/file/53623163260.pdfIn PDF document text
- http://chistogood.ru/admin/ckfinder/userfiles/files/65656659417.pdfIn PDF document text
- http://firmykominkowe.pl/Obrazki/edytor/file/17430615593.pdfIn PDF document text
- http://etnorom.hu/pictures/58329560644.pdfIn PDF document text
- http://rocb-ap.org/file_media/file_image/file/1819263097.pdfIn PDF document text
- http://vegman-kzn.com/ckfinder/userfiles/files/40394439953.pdfIn PDF document text
- https://triangle-electronics.com/assets/userfiles/file/jadazoferibu.pdfIn PDF document text
- http://phanmemerp.vn/attachment/files/bojixemajatakam.pdfIn PDF document text
- https://clubselect.ro/ckfinder/userfiles/files/60385594798.pdfIn PDF document text
- http://preciz.com/uploads/wysiwyg/files/37022902558.pdfIn PDF document text
- http://handlpc.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/98455824940.pdfIn PDF document text
- https://samoinstitute.mn/uploads/assets/file/foxuneruwifudusavo.pdfIn PDF document text
- https://hung168.tw/UserFiles/files/77887511813.pdfIn PDF document text
- http://way-of-spirit.ru/upload/file/1695040479.pdfIn PDF document text
- http://copy2d.com/ftp/image/file/gotunesaluma.pdfIn PDF document text
- http://agro-pasz.pl/ckfinder/userfiles/files/ziwitenopozavewidutawu.pdfIn PDF document text
- http://artgrafika.cz/userfiles/file/nawakumo.pdfIn PDF document text
- http://projecthouse.bg/uploads/CKfinder/files/55249664923.pdfIn PDF document text
- https://metricgroup.it/uploads/file/lexopilago.pdfIn PDF document text
- http://life-homeshop.buyout8.com/asset/uploads/files/buxasaxijemixejiropumewuw.pdfIn PDF document text
- http://www.iuoelocal870.com/kaizen/ckfinder/userfiles/files/22398882905.pdfIn PDF document text
- http://canadapremiumlubes.com/survey/userfiles/files/fijixivinurebetuxipana.pdfIn PDF document text
- http://sushiloverca.com/uploads/files/murufitelobotafo.pdfIn PDF document text
- http://kingbikeonline.com/images/upload/File/16316271236.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_off0001070b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1070B | 18608 bytes |
SHA-256: a421be041a72b20cc88abb4635a4ad02b9d077299cc9e0c453558ec04bbcd26b |
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font_01_sfnt_off000136ee.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x136EE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00014f05.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14F05 | 10640 bytes |
SHA-256: b4245445c3ff8fee7c4ab9e1823ade122bd03dceccb835b911d3ca83425a4e9f |
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