MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The sample is a PDF document flagged by ML classifiers and ClamAV as malicious. It contains numerous embedded URLs, many of which are structured to appear as file downloads. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' indicates the document's intent to trick users into believing they need a password for an archive, a common tactic to bypass gateway security. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to facilitate the download of a malicious payload, likely through a chained attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9860
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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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=cannot+open+password+protected+pdf PDF link annotation
- http://rund.cz/UserFiles/File/37630170667.pdfIn PDF document text
- http://one9five.com/userfiles/files/97433841871.pdfIn PDF document text
- https://bestcaps99.com/ckfinder/userfiles/files/50936722123.pdfIn PDF document text
- https://ikansambel.com/contents/files/34968007048.pdfIn PDF document text
- http://squarcialupirelaxinchianti.com/writable/public/userfiles/file/49182658388.pdfIn PDF document text
- http://sibleyestateplanning.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/pusidupepogu.pdfIn PDF document text
- http://usaoxin.com/userfiles/2021-9/file/28768473573.pdfIn PDF document text
- http://vning.net/filespath/files/20210909055656.pdfIn PDF document text
- http://ventexevent.se/uploads/file/denafapoxajusenak.pdfIn PDF document text
- https://profm.hu/files/file/15474994590.pdfIn PDF document text
- https://qatarsecurityservices.com/public_html/userfiles/file/98740307389.pdfIn PDF document text
- http://maihome.hu/admin1/file/lonitivisazakolumebu.pdfIn PDF document text
- http://laptopcuhaiphong.vn/upload/files/69749728968.pdfIn PDF document text
- https://mcq.bmtinhoc.vn/InteriorWeb/images/images_news/files/rabaguwodeviba.pdfIn PDF document text
- http://kientrucnhacuagio.com/upload/files/70028149082.pdfIn PDF document text
- http://argyleliquidations.com/userfiles/files/bumugisavixevatakeladus.pdfIn PDF document text
- http://gmei.lt/ckfinder/userfiles/files/39825189169.pdfIn PDF document text
- http://parkwestresidences.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139793cb8b07---kuxiw.pdfIn PDF document text
- https://wigs4less.net/nbloom/fckuploads/file/litibigelegemaw.pdfIn PDF document text
- https://2ruoteexpo.it/ckfinder/userfiles/files/jiradorabol.pdfIn PDF document text
- https://www.comperat-89.fr/ckfinder/userfiles/files/18618664300.pdfIn PDF document text
- http://dgjinhak.kr/DATA/upload/files/202109130630508538.pdfIn PDF document text
- https://ixiu-23.com/uploads/files/202109040149427052.pdfIn PDF document text
- http://argra.rs/wp-content/plugins/formcraft/file-upload/server/content/files/1613c9d04ae09e---ridixu.pdfIn PDF document text
- http://alfatreyd-mebel.ru/archive/images/file/vekolugexobime.pdfIn PDF document text
- http://levotst.com/uploads/files/negamekif.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_off0000e1ad.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1AD | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f9bf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF9BF | 17924 bytes |
SHA-256: 7df121e7b01633a487f6fb6d8dfc0f4ae412f2a1c6192e1f47d68b0f6f5c0e62 |
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font_02_sfnt_off00012828.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12828 | 10592 bytes |
SHA-256: 7756ba44bb55e793ab72f9b92ad448479ebaf3c2d8da6766f648a103715113c6 |
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