MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating it is likely a phishing or trojan delivery mechanism. The document contains a link farm pointing to compromised WordPress sites, suggesting an attempt to host and distribute malicious content. The presence of invoice-related language further supports a phishing lure attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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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Fake invoice / payment lure low SE_INVOICE_LUREDocument contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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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://advancedcheckcashadvance.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a25efb4e2af---zurelu.pdf In PDF document text
- https://www.ideaklinikankara.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607427bb90acf---derugivisulakubujixes.pdfIn PDF document text
- http://veoguidecostarica.com/ci/userfiles/files/56660453481.pdfIn PDF document text
- http://evohome.pl/userfiles/file/zuwit.pdfIn PDF document text
- http://a-daily.jp/app/webroot/contents_img/files/49146929898.pdfIn PDF document text
- http://irinka.org/ckfinder/userfiles/files/buvuwoserimazudepug.pdfIn PDF document text
- https://vickers-electronics.co.uk/wp-content/plugins/super-forms/uploads/php/files/bb632b5a6dc6bc4fceb162f4a879a92d/19705238231.pdfIn PDF document text
- https://kantankacreative.com/wp-content/plugins/super-forms/uploads/php/files/6cb277fddc8a7a5c692a6f4f86626b7a/75614529689.pdfIn PDF document text
- https://yziact.fr/wp-content/plugins/super-forms/uploads/php/files/l61u1ih544dbu3nct2jea3ft91/67248453103.pdfIn PDF document text
- https://bmat.mn/uploads/ckfinder/files/22164341593.pdfIn PDF document text
- http://mijneigenlift.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607711efa09bd---lalugomipakogu.pdfIn PDF document text
- https://liantoong.com/archive/upload/files/18267047657.pdfIn PDF document text
- https://malimbe.africa/wp-content/plugins/super-forms/uploads/php/files/d1edbf768783f47a4ede820519a70400/99768199985.pdfIn PDF document text
- https://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608084a82bbd3---22287396276.pdfIn PDF document text
- https://www.geosuiteonline.de/wp-content/plugins/formcraft/file-upload/server/content/files/16084f4f6825fd---pulito.pdfIn PDF document text
- http://nordicaluminium.ru/userfiles/file/liradexe.pdfIn PDF document text
- https://cald-lighting.com/wp-content/plugins/super-forms/uploads/php/files/ebf94f7076b5900074c18e3159f8e089/30095773661.pdfIn PDF document text
- http://netmutum.com/userfiles/file/nilukape.pdfIn PDF document text
- https://kalyna.ua/sites/default/files/userfiles/file/26898497767.pdfIn PDF document text
- http://teaandtiara.ca/clients/c/cf/cffd5a667a547ddf6f7ed7e454f715b7/File/45374937751.pdfIn PDF document text
- https://www.rockandroll.blog.br/wp-content/plugins/super-forms/uploads/php/files/n5vdf8m4nkpquvo470fu277fe5/98096402019.pdfIn PDF document text
- http://nemdanangpho.com/uploads/2021-07-20/images/files/rimixediwub.pdfIn PDF document text
- https://tkpmission.org/wp-content/plugins/formcraft/file-upload/server/content/files/160e0ff8673fda---wuxopuvubozagivatezugifo.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=paralegal+billable+hours+templatePDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f554.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF554 | 17276 bytes |
SHA-256: 174ebc8a6f5d9317327f95d9d86f94934e18e10f45c886bbda1ed1396781b46d |
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font_01_sfnt_off00012264.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12264 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00013a7b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13A7B | 10836 bytes |
SHA-256: 9330769bb985bb646b540bf5e0294e3809fed934a63aae08057f6f50ef6149e8 |
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