MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many of which are part of a link farm hosted on disposable domains, suggesting a phishing or redirection attempt. The file's metadata indicates it was generated by wkhtmltopdf, a tool often abused to create malicious PDFs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9781
Heuristics 5
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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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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://laborke.ru/uplcv?utm_term=faster+youtube+video+downloader+for+android PDF link annotation
- https://knurussian.kr/DATA/upload/files/202109050731214383.pdfIn PDF document text
- http://happinessgown.com/upload/users/files/mamuloginunewagetepavalas.pdfIn PDF document text
- http://www.garriagricola.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141692a5c66d---joxozomusidenevur.pdfIn PDF document text
- http://bilcafe.it/userfiles/file/20387722779.pdfIn PDF document text
- https://leanuslab.com/UserFiles/file/zakilajagobekibij.pdfIn PDF document text
- https://medpressa.ru/files/file/76547711066.pdfIn PDF document text
- http://jafra-com.at/userfiles/file/83558582210.pdfIn PDF document text
- http://gazomotor.com/allinone/file/fuvodifid.pdfIn PDF document text
- https://lentes123.com/aym_image/files/nezepi.pdfIn PDF document text
- http://dellalontra.it/userfiles/files/ladolalerilukorimo.pdfIn PDF document text
- http://checopharma.com/upload/files/pobafazowopefafidiviw.pdfIn PDF document text
- https://chuyennhakienvangvn.net/upload/files/17176935654.pdfIn PDF document text
- http://cheapstandard.com/uploads/files/nemenokodufilijoz.pdfIn PDF document text
- https://smgbid.com/ckfinder_userfiles/files/24086429128.pdfIn PDF document text
- https://tavfelugyelet.megujuloenergiapark.hu/admin/ckfinder/userfiles/files/sasifab.pdfIn PDF document text
- http://apartament-krokus.pl/userfiles/file/16738872841.pdfIn PDF document text
- https://il-gusto.com/images/file/19398888236.pdfIn PDF document text
- http://tomboy2.com/images/library/File/pusodeguwalaxoxun.pdfIn PDF document text
- http://refinerlink.com/userfiles/file/pexigivilov.pdfIn PDF document text
- http://alt-1c.ru/userfiles/file/xobalinurasagesokozig.pdfIn PDF document text
- http://xueyuan.zlyxgw.com/uploads/ckeditor/files/20210921075956.pdfIn PDF document text
- http://szhlfz.net/upload/49901600630.pdfIn PDF document text
- http://helicopterleasingservices.com/userfiles/files/zerugoregeronexixivunuj.pdfIn PDF document text
- http://chinamakina.com/userfiles/file/54432953866.pdfIn PDF document text
- https://viboot.com/ckfinder/userfiles/files/pirare.pdfIn PDF document text
- http://softtox.com/new/userfiles/file/3200094404.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b651.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB651 | 19300 bytes |
SHA-256: 6c928149457589b2f7541b910fdc47df2beb3f6ddc49901b0e0f3c90da1dd6b2 |
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font_01_sfnt_off0000e817.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE817 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010028.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10028 | 16188 bytes |
SHA-256: 800554d3d6320da9c8ab21a3ad3d270f40e7a92360d7538c059d647d952d1d34 |
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font_03_sfnt_off000115df.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x115DF | 10828 bytes |
SHA-256: b81782f234363ce24d21e9f55a0f79d0cfa7fcd23d18891b256f720d09f44d7b |
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