MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. It contains numerous embedded URLs, many pointing to compromised CMS uploads or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The presence of external URI heuristics and the ML_NYX_PDF_MALICIOUS firing strongly indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 6
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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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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://ceilford.org/wp-content/plugins/super-forms/uploads/php/files/f3db8a466aa0a6dd8b325467e57bd78c/mewed.pdf
- http://blissworldbeauty.com/newerac2c/userfiles/file/81379351631.pdf
- http://e-kva.ru/admin/ckfinder/userfiles/files/fikodoruwisimumobuwo.pdf
- http://videoacceso.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080b0f60e155---15295585730.pdf
- http://simkoongschool.com/uploads/editer/files/38169477075.pdf
- http://esistore.de/userfiles/file/kojaluge.pdf
- https://kvartira-zalog.ru/wp-content/plugins/super-forms/uploads/php/files/92bebc2a086905b5fd356533bee7f1a2/11356651864.pdf
- https://charterfori.ir/basefile/charterforiir/files/79896409595.pdf
- https://panificiopasticceriabattaglia.it/file/79322516702.pdf
- http://immobilieninvestors.de/userfiles/file/84988401684.pdf
- https://www.diktu.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080009a7c594---3665921815.pdf
- http://garderoba.sk/images/_file/58986180101.pdf
- https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/7f41ec79cc88c4ef4c156570bda51dcc/32752525295.pdf
- https://gradeagroup.com/wp-content/plugins/super-forms/uploads/php/files/5epvl9cq5b2igdfkajt2s3dlpl/35761575799.pdf
- http://jorkurojus.com/userfiles/file/bitipotejukekinokeniw.pdf
- http://actlogistic.vn/upload/editor/files/pegowewukafidizukuke.pdf
- https://www.kadeavenue.com/wp-content/plugins/super-forms/uploads/php/files/096c2d80454af91239b570a8b6680104/zuzekali.pdf
- http://www.oteliapelsin.ru/ckfinder/userfiles/files/85644508223.pdf
- https://ecef-groupe.com/wp-content/plugins/super-forms/uploads/php/files/dglbl12flg73f1n91ee4bcfpr0/sufuj.pdf
- http://bmsorganica.com/userfiles/file/molafeged.pdf
- http://lagunarent.lt/ckfinder/userfiles/files/83598850747.pdf
- https://b2cexpressdemo.com/userfiles/file/barav.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=power+dissipated+in+a+resistor+meaning
- 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_off00011f99.bin13c203b16484a014b13cb62cca5766437a7f556d1776273568f8f592ec5a5ce7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F99 | 10776 bytes |
font_01_sfnt_off00013846.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13846 | 16792 bytes |
font_02_sfnt_off00015058.bin1a2560874190fe7b22d212be856d85e765e2d077250d5066f3877ad5f6579062 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15058 | 18084 bytes |
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