MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, directing users to multiple external websites, some of which are hosted on compromised CMS uploads or disposable domains. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the presence of numerous links strongly suggests an attempt to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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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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://maynenkhipuma.vn/quangbasanpham/app/webroot/upload/image/files/70512488407.pdf
- https://ruiguoex.com/upfile/files/2021/08/08/naxikakuwozizarifosigi.pdf
- http://ibb-online.ru/f/file/majilalijojajejurixuwo.pdf
- http://ipvoicenj.com/wp-content/plugins/formcraft/file-upload/server/content/files/160893095c4d1e---14862903888.pdf
- http://sbhs1967.com/clients/8/89/8985ce50e7417da620f75e2af787291b/File/gagifabodirikewamizixok.pdf
- http://bannails.com/fckeditor_userfiles/file/41971809104.pdf
- https://utilitydiscount.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b81c73ea53b---8090713075.pdf
- https://glass-haus.ru/wp-content/plugins/super-forms/uploads/php/files/18bec71d8a87f67736a5c7e7748cb387/bosaxopoxebalatinevir.pdf
- http://mtcclassof81.com/clients/0/0a/0a45bd3013a8cc77df817aa526a911b1/File/towadanames.pdf
- https://misbahelmudii.org/ckfinder/userfiles/files/xizigepokasula.pdf
- https://www.isgs.org/wp-content/plugins/super-forms/uploads/php/files/450c0ec14ad79a3f69cc164de928fbe5/67597527306.pdf
- http://rococosofa.com/files/files/17786278589.pdf
- http://wedooverseas.com/userfiles/file/lasafabalo.pdf
- http://fouladsazanco.com/Upload/file/57674809899.pdf
- http://jiab.net/userData/board/file/70064855218.pdf
- https://www.icslights.com/wp-content/plugins/super-forms/uploads/php/files/eaf068fa80bb216659e26d7b754b3dbc/pedapidaviteropisuxi.pdf
- http://quaint-house.com/images/blog/file/96151750953.pdf
- http://indel.sk/userfiles/file/budusegekegedekudin.pdf
- http://decom.pro/admin/ckfinder/userfiles/files/94393382976.pdf
- http://infinity8talents.com/userfiles/file/3622045918.pdf
- http://lateonsettay-sachs.org/userfiles/file/kumuluzebeverusojed.pdf
- http://nwatchonline.net/userfiles/file/tedosejevukaxa.pdf
- http://metallpress.info/files/71790940695.pdf
- https://maxim-catering.de/wp-content/plugins/super-forms/uploads/php/files/68r72iq7jsv73k21n23oip8otp/fibaduvikufexutu.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=tennant+5700+scrubber+manual
- 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_off0000c0cb.bin2c35a2dc45b7ec680b9b92fc44679076f90c298378cc8d9a9ab1ee2f637966ca |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC0CB | 16328 bytes |
font_01_sfnt_off0000ead6.bind3bbef98266a86fde5ed76e31fbbef03c73480871a273a7dacee560c7039adeb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEAD6 | 10688 bytes |
font_02_sfnt_off0001037c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1037C | 16792 bytes |
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