MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which are hosted on compromised or disposable domains, indicating a link farm designed to redirect users to malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
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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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://pistant.ru/uplcv?utm_term=lucky+patcher+patch+android
- https://ngoctraithaibinhduong.com/uploads/news_file/rulufukixiga.pdf
- https://www.dynasil.com/wp-content/plugins/super-forms/uploads/php/files/37ba9800d44041a05a162f3e6cf76d45/poxexixovokagodumazulizu.pdf
- http://change4best.ru/upload/file/bomukewa.pdf
- http://susutour.com/userfile/file/62380977213.pdf
- http://ueros.fr/admin/ckfinder/userfiles/files/bujogubukuguwuzatot.pdf
- http://cpils.com/userfiles/file/98227258860.pdf
- http://xn----otbbfbbknchz.xn--p1ai/sadm_files/duzotefanozexamepox.pdf
- http://energcomb.net/cms_enercomb/sgi_userfiles/userfiles/files/pajifaxazixuz.pdf
- http://www.insurancedirectcanada.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16137e60924485---63270791701.pdf
- http://2m-m.eu/userfiles/files/91270332386.pdf
- https://www.sussexweddingservices.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16144719d6ee59---96616743268.pdf
- http://in-dapt.com/wp-content/plugins/formcraft/file-upload/server/content/files/16143cb4cae41f---jakor.pdf
- https://willes-gb.com/uploads/files/202109080049326949.pdf
- http://ozkayalarlojistik.com/userfiles/file/79136164082.pdf
- http://iranjobex.com/cache/fck_files/file/97237847955.pdf
- http://canigrup.com/userfiles/file/35011127173.pdf
- http://vindindex.nl/images/uploads/40138900508.pdf
- http://sprinter-lab.ru/content/File/53354129928.pdf
- http://metamorfozyayincilik.com/userfiles/file/polufupakoja.pdf
- http://www.palmettoexpresslanes.com/system/js/back/ckfinder/userfiles/files/92078977170.pdf
- http://geose.ru/userfiles/file/87942656388.pdf
- http://studiotravenzolo.it/userfiles/files/fevajedunitefa.pdf
- https://niboparis.com/upload/fckeditor/file/1631230242_1.pdf
- 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_off0000d356.bin0cb7d6622f27c282d4f45817be9019c033d547cea2e44daa595c97076fa9281b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD356 | 17204 bytes |
font_01_sfnt_off00010018.bin077034fc1af4c1d1e0602fdbc6c273e3b2fff59f8267cccd6c6b5c288382d188 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10018 | 10660 bytes |
font_02_sfnt_off00011886.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11886 | 16792 bytes |
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