MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a link farm hosted on compromised websites, directing users to download other PDFs. The 'SE_PASSWORD_ARCHIVE_LURE' heuristic indicates the document likely instructs the user to open a password-protected archive, a common tactic to bypass gateway security. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 7
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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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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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://dzstock.com/Upfiles/file/satotedavajem.pdf
- http://kameleonhastanc.hu/files/file/lisokubowuvadobexorenap.pdf
- http://otczenacts.com/media/files/19311627097.pdf
- https://www.bluegreenshouseboats.in/wp-content/plugins/formcraft/file-upload/server/content/files/1613cd148eef5c---rifumefo.pdf
- http://www.goataxiservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16152128c63b5e---51243273197.pdf
- http://ajisushionline.com/uploads/files/53942648617.pdf
- http://ambartakip.net/belgeler/file/luxabaturigurolan.pdf
- http://agisinfo.ru/uploads/content/files/bokadejanudiferadeweteti.pdf
- http://xlith.com/userfiles/files/wuvovab.pdf
- http://www.champcaregivers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615a1d8bcdab8---63568963270.pdf
- http://cukiernia-waltar.pl/qcms/userfiles/file/vivukareralaxobajawamip.pdf
- http://tsrmvolontari.it/userfiles/files/posavatijoveb.pdf
- http://mwbright.com/upload_fck/file/2021-9-28/20210928070111965486.pdf
- http://espokebar.com/uploads/files/66426188550.pdf
- http://yonseri.org/userfiles/files/jizebexetapuxij.pdf
- https://fundacionamigosdelmarcaribe.ong/ckfinder/userfiles/files/73288540600.pdf
- http://evo-models.com/uploads/userfiles/files/84339004563.pdf
- https://eirai.org/editor/ckfinder/userfiles/files/gaxagirokapuzola.pdf
- http://novosib-sport.ru/ckfinder/userfiles/files/wirutuxijimewerudi.pdf
- http://sujitonweb.com/userfiles/files/penotorefuwigotulikefudis.pdf
- https://loskutova.site/wp-content/plugins/super-forms/uploads/php/files/5cad5a6f7fc43c7587224cb71a53b1f8/36710451710.pdf
- https://theshairpodcast.com/wp-content/plugins/super-forms/uploads/php/files/34c5490dff7fc9846358552b6f6486e2/71854719196.pdf
- https://wentworthre.com/wp-content/plugins/super-forms/uploads/php/files/aa3a6a4feb9b856d88476f9805f08494/lozerisalaviverunuv.pdf
- https://bnbcostaverde.it/userfiles/file/88110135804.pdf
- https://feedproxy.google.com/~r/Gsjc/~3/1hHberoKktI/uplcv?utm_term=sorghum+silage+for+beef+cattle
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d894.bina764ec40f8b47cb42f0a0610ee84496d6f4c9d8c073b626b8040fccc08c6ca48 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD894 | 10996 bytes |
font_01_sfnt_off0000f223.binc7059c097931a1af2fc6d0e9a1ca304fe1be8d167754a7eecd724996f7caabcc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF223 | 18188 bytes |
font_02_sfnt_off0001205b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1205B | 16792 bytes |
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