MALICIOUS
204
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics suggest the document functions as a link farm, directing users to potentially compromised WordPress upload storage and other disposable hosting sites, likely to distribute malware. The presence of a 'password-protected archive lure' heuristic further supports the idea that this document is a precursor to delivering an encrypted payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
Heuristics 8
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://www.nationaalgolfcongres.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1606ceecd96577---pexono.pdf
- http://rdmsrl.it/userfiles/files/jibadi.pdf
- https://luxartparquet.com/wp-content/plugins/super-forms/uploads/php/files/27ba7209fdab13ecad09b8d830c97bf7/73834286236.pdf
- http://niezapominajkowo.eu/userfiles/file/kurapugogusitalose.pdf
- https://www.rath-catering.de/wp-content/plugins/formcraft/file-upload/server/content/files/160d8e721a875f---xakolukebobikadusemiriv.pdf
- http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/57dedl7ogsvjf9pu91n3en2kc2/demazemanujowo.pdf
- https://bettenbaehren.de/wp-content/plugins/formcraft/file-upload/server/content/files/160820ed9961e8---23774531900.pdf
- http://berkeleyhigh64.com/clients/9/99/99a482d4bd0dc5522cc24ea7f8204a07/File/77327084409.pdf
- https://www.tessilgiada.it/wp-content/plugins/formcraft/file-upload/server/content/files/160b348a7be814---kamafotezupizewukefuwuf.pdf
- https://riverasphotovideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085204e4edc2---daweribawebufufuwe.pdf
- http://zonweringnederland.com/ckfinder/userfiles/files/68561446647.pdf
- https://www.harnoordesigns.com/wp-content/plugins/super-forms/uploads/php/files/ial7sa3igip386u2tc0i8e3nd6/5751624738.pdf
- http://acmemask.com/upfiles/editor/files/4580274630.pdf
- https://catherinehourihan.art/wp-content/plugins/super-forms/uploads/php/files/77d062715a521cde8e0710e00ee8d575/93565476519.pdf
- http://www.jcca.co.in/wp-content/plugins/formcraft/file-upload/server/content/files/160a9856bbcfd0---zupediwi.pdf
- http://kondicionery-domodedovo.ru/upload_picture/file/wosowo.pdf
- http://capitolmetrophysicaltherapy.com/userfiles/file/ribalasiwelapu.pdf
- http://www.agrosystem.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160afa1522668c---kamiwefotimezobunajog.pdf
- http://atthaya.com/file_media/file_image/file/vixolusisom.pdf
- http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/16083f45b2dfec---15017181373.pdf
- https://mosconi.net/userfiles/file/gizule.pdf
- http://zonazero.es/userfiles/file/pememivaribezisoguw.pdf
- https://balance-global.com/wp-content/plugins/super-forms/uploads/php/files/l7m1jnmusirq7jmpktj37qtg1q/61826822081.pdf
- https://www.helpagesl.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607ebefd10c37---6358269174.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=free+frp+bypass+apk+download
- 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_off0000f901.bind1854a65f280b925da244908cc4d2e4c351a1fee5d443d210e62b3419d8a5970 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF901 | 10708 bytes |
font_01_sfnt_off00011187.bin13cc605ecba35bc00f18c76ce2106b3d913c8fcae3c1a4ff3d2c1b0b5bfe429c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11187 | 17764 bytes |
font_02_sfnt_off00013fb2.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13FB2 | 16792 bytes |
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