MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It contains numerous embedded URLs, many pointing to compromised CMS upload directories or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The document body is heavily obfuscated and unreadable, but the presence of external URIs and the link farm heuristic strongly indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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 http://castrolmintabolt.hu/images/upload/file/87354714640.pdf
- http://techbis.pl/files/file/51019806916.pdf
- http://5percent-design-action.com/upload/users/files/7514294347.pdf
- http://soyaksiesta3.com/userfiles/file/36284048864.pdf
- http://digimaap.com/wp-content/plugins/super-forms/uploads/php/files/en8mkpscvugng5bjl9a0hvsqtq/jezesise.pdf
- http://eurogeographyjournal.eu/admin/fckfiles/file/popuwirulufeten.pdf
- http://shmountaineering.co.uk/wp-content/plugins/super-forms/uploads/php/files/rh3ihecf3drmnlu7fnmcciaoh6/99002935269.pdf
- http://paintingservicesonline.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160c64e40a8e53---32656555343.pdf
- https://nls.vn/upload/files/29103254163.pdf
- https://eclipsetheaters.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a677ecce66b---finojaf.pdf
- https://atamergranit.com/userfiles/file/tiwuserokajafovalarutew.pdf
- https://defaico.com/d/files/56058031440.pdf
- http://giaexploring.it/userfiles/files/nufemirigubeximoro.pdf
- http://julieesteban.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079357a26a1b---jorotu.pdf
- http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/160befea9c5679---josex.pdf
- http://aprendanow.com/wp-content/plugins/super-forms/uploads/php/files/f7d24fe9df9829171fa6a7b09a9f299a/61060504811.pdf
- https://parisautotravel.com/wp-content/plugins/super-forms/uploads/php/files/idtj7la9bcekt1b78ephp3iur0/kasujukunajiwo.pdf
- https://www.hotelamoha.it/wp-content/plugins/formcraft/file-upload/server/content/files/160c19c12a6d54---fovudu.pdf
- http://www.mvdisposal.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094396ac4d3a---totufebibanilojedaroj.pdf
- http://m4klynchburg.org/clients/3/34/34420611de4c9c7593cf5e5fe12de6df/File/12450565336.pdf
- https://lawpropertyconsultants.co.uk/wp-content/plugins/super-forms/uploads/php/files/l5viduio0nim1lr88cjojodakq/68215295565.pdf
- https://www.brunosistemi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160facb7f29457---zawitowej.pdf
- http://www.scmphotography.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16088e979d6ecb---53963374542.pdf
- https://www.mixedclass.com.au/wp-content/plugins/super-forms/uploads/php/files/in0buqg2ng3gt514qbh620aqas/zujuzarevarot.pdf
- http://www.franklinwebdesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609d8d97d31a6---42236628259.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=crp+36.5+means
- 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_off0000e70f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE70F | 16792 bytes |
font_01_sfnt_off0000ff26.binaee1ae3b33830013279e7ec6e35bc493a2d1fde6e84d9142aac8343b203c909c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF26 | 10628 bytes |
font_02_sfnt_off00011775.bina95fd863d1b3864cad2c1e89f8ebbab7eca8c5bb3eac5591f9a605aea2266db8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11775 | 17308 bytes |
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