MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous URLs, many pointing to compromised WordPress sites, suggesting it's designed to lead users to malicious content. The 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic indicates a large number of links on disposable hosting, further supporting its role as a lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
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://bmcnx.com/userfiles/file/durevolerileputoja.pdf
- http://suportti.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085c99379147---50035125758.pdf
- https://www.arphplumbing.co.uk/wp-content/plugins/super-forms/uploads/php/files/n1sne86q5t94if42hct4t7npos/sewibetovejebume.pdf
- https://www.kalirich.com/wp-content/plugins/super-forms/uploads/php/files/bv0ibhkk2doke22i4r856qt3g3/tidirubusas.pdf
- http://alsumiri.net/wp-content/plugins/super-forms/uploads/php/files/506b84247ace258a9db69344b4bbeebb/74701961089.pdf
- http://adanateknikservis.web.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1609545b6a77c8---lerevudosefuxematoxore.pdf
- http://aucoindeshalles.com/menu/file/84021037587.pdf
- https://bruceautoservice.com/files/file/serepolilodusa.pdf
- https://angelsforwarriors.org/userfiles/files/pipefiligozobuwixeruwu.pdf
- https://www.utn.ac.cr//sites/default/files/files/20066068304.pdf
- https://ayurvedaemart.com/uploads/file/14621840397.pdf
- https://www.surajinformatics.com/wp-content/plugins/super-forms/uploads/php/files/9ef29726323c19e507592892325e920b/luxitaxog.pdf
- http://kondicionery-vidnoe.ru/upload_picture/file/46993873985.pdf
- http://habitat3.eu/userfiles/files/jazujavuviji.pdf
- http://eprdel.cz/userfiles/file/86296523755.pdf
- http://kaowei.tw/image/files/20210605_090356.pdf
- https://arihantgranites.in/wp-content/plugins/super-forms/uploads/php/files/mpl8ra1cejacda1nj2j741fp57/gatipupi.pdf
- http://shsuorui.com/uploadfiles/fckeditor/20210625/file/16246458352193.pdf
- http://conwaychristian.org/wp-content/plugins/formcraft/file-upload/server/content/files/16094360d54db6---gefilolufaroxateginiw.pdf
- https://khonggiansachhanoi.vn/uploads/files/bunuwotuwiro.pdf
- https://www.sir.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1609f241716c9b---xakorus.pdf
- https://ryokanclub.com/FileData/ckfinder/files/20210705_CBD2AA93B3EC29BC.pdf
- http://la-roofers.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1608d4935df0a3---58130401333.pdf
- http://animationcoach.com/userfiles/file/39430630304.pdf
- https://felix-schulze.biz/wp-content/plugins/super-forms/uploads/php/files/sdauavtmo9loo921vrg2us0nv2/damijovigufojulezeliv.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c511668e4d2---luzanewaboleramarib.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=positive+l+words+to+describe+a+person
- 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_off0000f0de.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0DE | 16792 bytes |
font_01_sfnt_off000108f5.bind393cab9642e9df94b1769d1e5bbaaebde791f37b0cefd5ae0069a004250db04 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x108F5 | 10800 bytes |
font_02_sfnt_off000121d0.bin8104f4f39c2b379e225037017347242d9a44a7ae5d3ae7dc2a05ba1d7a6370d3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x121D0 | 17636 bytes |
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