MALICIOUS
172
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a link farm pointing to compromised WordPress sites, indicating an attempt to deliver a malicious payload. The ClamAV detection and ML classifier strongly suggest malicious intent, likely a phishing or trojan delivery mechanism. The presence of embedded JavaScript (T1059.007) and the nature of the links suggest a spearphishing attachment (T1566.001) designed to trick users into downloading malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9912
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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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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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 https://www.bouwenaaneensterkwerkgeversmerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161348ffa8dc43---1698475596.pdf
- http://paintingservicesonline.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1614b639fd0309---pafakon.pdf
- https://dermo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16143e7ff0abe3---15431495317.pdf
- http://strelnicebudejovice.cz/userfiles/file/32136482828.pdf
- http://geriatriccarenewjersey.com/userfiles/files/fejeboka.pdf
- http://www.saaegfpolis.org.br/ckfinder/userfiles/files/xuvekasolenimumupe.pdf
- https://trungtammatnamviet.vn/upload/files/33126604154.pdf
- http://mondoacquapiscine.com/userfiles/files/tejaw.pdf
- http://labmansour.com/app/webroot/js/ckfinder/userfiles/files/35531128809.pdf
- http://chip-chup.hu/upload/file/tezapumewuliduv.pdf
- http://gzmingjun.com/uploadfile/files/20210910_052457.pdf
- http://kxnjl.com/userfiles/files/44246892892.pdf
- https://marlschuz.com/userfiles/files/83769592925.pdf
- http://www.vinoplaza.nl/img/upload/files/losijixijoto.pdf
- http://www.farmaciavictoriayjmleon.com/userfiles/files/muvamijomir.pdf
- https://kermoulin.com/userfiles/file/kodilage.pdf
- https://grootformaatspandoeken.nl/userfiles/file/tefuxoz.pdf
- https://buddingheights.org/wp-content/plugins/formcraft/file-upload/server/content/files/1614851434bd22---5480233441.pdf
- https://www.darrellstuckey.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612eb79397645---kedufoniselanevoni.pdf
- http://mensagemcrista.com.br/ckfinder/userfiles/files/23545882597.pdf
- http://gadkowski.pl/repository/filemanager/file/salunabodadosumaxilabep.pdf
- https://christembassybarking.org/wp-content/plugins/super-forms/uploads/php/files/71d77150bccd2df888d064b8d9b2e00d/71814789480.pdf
- https://m3nan973ru5-pa571.com/contents/files/75087004853.pdf
- https://hophamthaibinh.com/upload/files/taxalefonisifalipe.pdf
- http://idealthailand.com/file_media/file_image/file/fomotasanuzuxijidotumeboz.pdf
- https://mma-montessori.com/admin/ckfinder/userfiles/files/6600400895.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=fallout+shelter+online+cheats
- 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_off0000df95.bin64aaa32c805f339b93bb52c81d38fa6ad0bc5d8107337f5b563020d9e7348b58 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF95 | 18952 bytes |
font_01_sfnt_off000110d1.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x110D1 | 16792 bytes |
font_02_sfnt_off000128e8.binaa1bcf4b1c3a8086fa745e6be3d7306f2a922525b2193f0130f23cc2e595815a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x128E8 | 10404 bytes |
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