MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document contains numerous links to external websites, many of which are hosted on compromised WordPress sites or disposable domains, suggesting a link farm for phishing or malware distribution. The presence of a specific URL with a 'utm_term' parameter related to software downloads indicates a lure to trick users into visiting potentially malicious sites. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
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://allytemp.ru/uplcv?utm_term=internet+explorer+11+free+download+for+windows+8.1+64+bit+filehippo
- https://www.ogblfrontaliers.fr/wp-content/plugins/super-forms/uploads/php/files/ge2sjr5qtmdaos3ril7lg75smg/jewuw.pdf
- http://www.tsssport.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094858f581fe---wosarenilawamapomokewij.pdf
- http://elfuklid.cz/foto/Image/file/19218618074.pdf
- http://thecreditcrisis.net/clients/73966/File/53917296170.pdf
- http://aloeverajuice.cz/files/file/21587828970.pdf
- http://familiehollander.nl/images/uploadedimages/file/56245823594.pdf
- https://mamproducciones.es/wp-content/plugins/formcraft/file-upload/server/content/files/160dcbaf20fbf0---vidijizepaxog.pdf
- http://sparkpro.lv/content/file/nosakedowira.pdf
- http://www.benvenutialmare.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8d13728e74---rokokoxetelavoxi.pdf
- https://portugaliaimagyarok.com/ckfinder/userfiles/files/18994849811.pdf
- http://krindustria.com.br/site/wp-content/plugins/formcraft/file-upload/server/content/files/16096ad313abf0---2335805885.pdf
- http://sbriz.ru/userfiles/file/zagipukataxaz.pdf
- https://www.cukoyem.com.tr/wp-content/plugins/super-forms/uploads/php/files/0p04b7chnnlk0m96qe1cp10hn0/71437573534.pdf
- http://crystalnymph.by/wp-content/plugins/super-forms/uploads/php/files/694ccf1c06f9941205a473f647621edb/vixovobasasevizaz.pdf
- http://jlm-kg.com/uploads/file/38805453803.pdf
- http://aqcons.vn/upload/files/40365389056.pdf
- http://www.champcaregivers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160778c0734400---99828520244.pdf
- http://www.drop-lok.com/wp-content/plugins/formcraft/file-upload/server/content/files/160856b8f8483f---babazizimepabusu.pdf
- http://kpotplace.com/uploads/files/bexagemusijeda.pdf
- https://crownprolaw.cn/userfiles/Proj_Name//files/14654808384.pdf
- https://rhythmcprandfirstaid.com/wp-content/plugins/super-forms/uploads/php/files/a53335b1f5f47dcb48028ad61d2bf302/fatovexegejafix.pdf
- http://xn--12cmi2byac9cdhd0hra6d7bxkwbgj1gch.com/user_img/files/lomenirodupopevufisomik.pdf
- https://artasedanasingaraja.com/uploadfck/file/fosumipiwutavupuxafidiru.pdf
- http://medicapoland.pl/uploaded/file/78123810370.pdf
- 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_off0000e834.binc961035aa41fa9ce5d4176d7f475d0994c56c8d4ff378772794bdf597c553a51 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE834 | 11448 bytes |
font_01_sfnt_off0001031c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1031C | 16792 bytes |
font_02_sfnt_off00011b2e.bin225162c21f976a1a6de88c3875a1ff177c172dfbda4715177e3c3ce62d3ec2d1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B2E | 17440 bytes |
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