MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The file contains numerous external links, many pointing to compromised CMS upload directories or disposable hosting, suggesting a link farm or redirection scheme. The primary goal appears to be directing users to potentially malicious external sites, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9848
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 https://acryl-bg.com/userfiles/file/67057542687.pdf
- https://ercrs.org/wp-content/plugins/super-forms/uploads/php/files/o8njg7kb1j0gonbarnbqv0co0l/japekazazikixajogepok.pdf
- https://www.elementstraining.co.uk/wp-content/plugins/super-forms/uploads/php/files/0lv1o5h45uae8povbfoeudom0r/dibaw.pdf
- https://protradingindia.net/userfiles/file/54645404310.pdf
- http://splogservice.ru/content/file/mutagiditawa.pdf
- https://baigiangtoanhoc.com/upload/files/wunokuxazogozewejawur.pdf
- https://zzarosiscarampola.it/file/supanoremurazuwis.pdf
- https://www.rogierstoel.nl/wp-content/plugins/super-forms/uploads/php/files/hfmafjsc6do6ijfk1cc4mteu5a/51359972851.pdf
- http://snap-drone.com/userfiles/file/vibiniv.pdf
- http://saikunghouse.hk/userfiles/vivamuw.pdf
- http://www.platformliften.info/wp-content/plugins/formcraft/file-upload/server/content/files/1608f653fc6143---6014954279.pdf
- http://www.pranabkumar.com/fckimages/file/vuwirelupe.pdf
- http://www.grupohk.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160928b957ebe5---29909854431.pdf
- http://photographybynami.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a68531d1a95---6492894974.pdf
- https://naseeha.org/wp-content/plugins/super-forms/uploads/php/files/df03ad4d5a580f0ddbb23359ce988afa/geneferuwomevudagubuwijid.pdf
- https://nhatngudongkinh.com/upload/ckupload/files/dataz.pdf
- http://www.dj-csnl.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a9cbaaaa98a---vubuvafidov.pdf
- https://cal.lighting/wp-content/plugins/super-forms/uploads/php/files/a6a75f1f56f2baf4233e3c8b034b40c7/66329847372.pdf
- http://www.victorian-manor.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1609228a81caaf---39749995986.pdf
- https://marksiegeldds.com/wp-content/plugins/super-forms/uploads/php/files/6691e4d95d66929ea475542f13d5d7c6/67475074087.pdf
- https://www.hungarianassociation.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086855d54537---kaxodaz.pdf
- https://ohligschlaeger-berger.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607011900c771---76642344858.pdf
- https://ikima.fr/uploads/file/lexavukakejeredovud.pdf
- https://agermag.ro/mm/file/56545303637.pdf
- https://www.hauptsache.cc/wp-content/plugins/formcraft/file-upload/server/content/files/16081948be7106---nogorigoxo.pdf
- https://pass-eco-energies.com/ckfinder/userfiles/files/zuwogufofiradaxa.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=assembly+to+c+decompiler+online
- 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_off0000f030.bindb5f2804629a4db224c4cfbda0adf81068796c39a0a1df8cc396b9545d922b34 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF030 | 10748 bytes |
font_01_sfnt_off000108af.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x108AF | 16792 bytes |
font_02_sfnt_off000120c1.binc4b0965448669e95b65242fbe9fdf8c980a420e039d2674d226974907c689135 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x120C1 | 16440 bytes |
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