MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was identified as malicious by a ML classifier and ClamAV, flagging it as a phishing trojan. Heuristics indicate it functions as a link farm, directing users to multiple disposable domains and compromised CMS upload storage. The embedded URLs, such as http://gowowdeli.com/uploads/files/5827965075.pdf, are likely used to distribute further malicious content or conduct phishing attacks.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://gowowdeli.com/uploads/files/5827965075.pdf In PDF document text
- https://badeluxe.com/userfiles/files/83519874460.pdfIn PDF document text
- https://textosl.com/upload/editor/file/lekudikigorimixozu.pdfIn PDF document text
- http://wxmx.cn/upload/ckimg/files/202109090521351415.pdfIn PDF document text
- http://www.77ice.com/upload/files/dalemupitef.pdfIn PDF document text
- https://www.cfo-search.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131b6ebc80cf---loxogeverug.pdfIn PDF document text
- http://swiss-ex.com/images/blog/file/41772224027.pdfIn PDF document text
- http://xn--o79av69abka850ab6c.com/upload/file/202109070059489531.pdfIn PDF document text
- https://camile.vn/wp-content/plugins/super-forms/uploads/php/files/im04pfo8pkajcp2cva32in5pi3/13596765465.pdfIn PDF document text
- http://olympusflights.com/files/files/97285632717.pdfIn PDF document text
- http://milkyway-vn.com/upload/files/kapeliw.pdfIn PDF document text
- https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/48476d85612072a07e77b5ab83231de0/nozumupubetowegiri.pdfIn PDF document text
- http://golfvillageonline.com/userfiles/file/botisunofukenijate.pdfIn PDF document text
- http://benedictinoselrosal.org/ckfinder/userfiles/files/66750400406.pdfIn PDF document text
- http://hamkr.com/userData/board/file/29134258947.pdfIn PDF document text
- http://kroonzuivel.nl/ckfinder/userfiles/files/87194490749.pdfIn PDF document text
- http://serdceprirody.ru/userfiles/file/66180304859.pdfIn PDF document text
- https://primax.fr/wp-content/plugins/super-forms/uploads/php/files/6506fs1svnn1hhvhjs0p0p6vj0/jukewixigaduf.pdfIn PDF document text
- http://www.sm.ac.th/ckfinder/userfiles/files/xozetes.pdfIn PDF document text
- https://komunalno.vrgorac.hr/files/zixapifunu.pdfIn PDF document text
- http://fmafirm.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/fosipi.pdfIn PDF document text
- http://ukrainski-rosyjski.pl/userfiles/file/dofobomogemisewawevanesa.pdfIn PDF document text
- http://boston.pl/fck_pliki/file/zeduzu.pdfIn PDF document text
- http://igabana.com/upfolder/e/files/20210901142654.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=two+player+tank+gamePDF 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_off0000c94f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC94F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e166.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE166 | 10592 bytes |
SHA-256: 9c1d8c55d6a77cffcadc2e4ba1a5174311026ef160bf76f6418f97a018f53044 |
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font_02_sfnt_off0000f9b0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF9B0 | 17880 bytes |
SHA-256: 21c35482b52fe28db17397174f04cc4e0e589c91f0e1878fb66dba1e8b687f02 |
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