MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous links, many pointing to compromised CMS upload directories, indicating a link farm designed to distribute malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware delivery. The presence of a 'download button' heuristic further supports the lure aspect of the attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 7
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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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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://limpjet.com.br/wp-content/plugins/super-forms/uploads/php/files/e6a6bf7ada1167fa6c73f821aef24bbc/69669557052.pdf
- http://webinaris.training/ckfinder/userfiles/publics/files/suvidelese.pdf
- https://menu2uplus.com/images/file/zutuda.pdf
- http://call.ae/wp-content/plugins/formcraft/file-upload/server/content/files/1607e984b34520---65703369518.pdf
- https://www.ideakliniksisli.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ee80b445a1---buzibutapiketo.pdf
- http://moto-bike.pl/userfiles/file/pesoxu.pdf
- https://www.lindopoint.it/wp-content/plugins/super-forms/uploads/php/files/5d1e041e91fe30bce9efb66a4e6cf6bd/64479117201.pdf
- http://theydeserveastamp.org/wp-content/plugins/formcraft/file-upload/server/content/files/160c6b3fad3859---28593053414.pdf
- http://a-swiss.com/upload/userfiles/file/sonarawovexedi.pdf
- http://www.ausafrica.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1607fc9f61e917---repakew.pdf
- http://jtour.vn/userfiles/file/ridasadexoze.pdf
- https://299-45.com/CKEdit/upload/files/jopetutapiviju.pdf
- http://lahma.pl/_u/userfiles/file/15525097001.pdf
- http://www.kmclogistics.com/wp-content/plugins/super-forms/uploads/php/files/a4d2be4adcba37893042d9aac2645f33/11137802554.pdf
- https://cashofferoregon.com/wp-content/plugins/formcraft/file-upload/server/content/files/160813d74e1bc4---rulupesu.pdf
- http://yogo110.com/userfiles/file/nuvunalagaretezid.pdf
- http://westmoorclassof1965.com/clients/5/52/52ec68f2b927accf75267cb07bfcc891/File/15340817612.pdf
- http://creativeindustries.ru/uploads/userfiles/file/81932272878.pdf
- http://svazekobciorlice.cz/userfiles/file/sozowubulupasezorenegiri.pdf
- https://cedarcreeksauce.com/wp-content/plugins/super-forms/uploads/php/files/d7d45adba97e66bc0caea2f06d79c0b5/wojesukesobifabe.pdf
- https://www.reparaciondebomba.com.ar/wp-content/plugins/super-forms/uploads/php/files/upkh56a4h84t8hpol36l0q5mf3/terenoduforepevib.pdf
- http://envigest.cz/upload/file/55489901780.pdf
- http://www.opencalgary.org/wp-content/plugins/formcraft/file-upload/server/content/files/1606e17c7f2b61---81631426677.pdf
- https://benchmarktransitions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608324a7842ba---43349343371.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=top+torrent+sites+for+mac
- 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_off0000e96f.bincc1b13631fe2538b8091f1f24f2b29943ab83f7de7fced0c8618c256db971c83 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE96F | 10556 bytes |
font_01_sfnt_off00010185.bin7eb36304e9bc7a5b3849a405356841825bbf939d5276163bb3c8faac976f4fae |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10185 | 17656 bytes |
font_02_sfnt_off00012f0c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12F0C | 16792 bytes |
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