MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous links to compromised WordPress sites, suggesting a link farm designed to redirect users to malicious content. The PDF structure and embedded links point towards a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9935
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://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b8b251402be---22933069879.pdf
- https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/c999557fcd64e84012e70105356b6135/tetazatozexuleto.pdf
- https://thesmithgrouphouston.com/wp-content/plugins/super-forms/uploads/php/files/e5ebdd465818d440b9342d9319c4521a/37359260531.pdf
- https://master.plus/wp-content/plugins/super-forms/uploads/php/files/33cda5ce078e6c2008a4100a8572d9b9/gixejefutibidapil.pdf
- https://braviengenharia.com.br/wp-content/plugins/super-forms/uploads/php/files/dqm08rid5kshbiu8e3mt2vgo5h/gewude.pdf
- https://aguiapromocional.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16083f7273bbef---81440899101.pdf
- https://sanaspinler.com/calisma2/files/uploads/8044995706.pdf
- http://premiumresourcing.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7c0b80c19c---robesape.pdf
- https://www.geosuiteonline.de/wp-content/plugins/formcraft/file-upload/server/content/files/16087ff0b59912---20620204238.pdf
- http://clingac.com/d/files/36027685670.pdf
- http://csc-021.com/userfiles/file/20210628235347_06md6f.pdf
- https://service-panev.com/userfiles/18176573647.pdf
- http://voszveszprem.hu/_user/file/zegajurenelelelujimazof.pdf
- http://hanhthien.net/uploads/file/zavetetirikanupirekijenag.pdf
- https://vico-domrep.com/ckfinder/userfiles/files/sudimepudaribixij.pdf
- https://paloaltospeakerseries.com/wp-content/plugins/super-forms/uploads/php/files/6e9a6a38b87331c4383c3bd6f7589d67/pizujaz.pdf
- https://uaqbakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a1c81f9dc7e---69477803300.pdf
- https://jjcfurnituremaker.com/userfiles/files/kazewon.pdf
- https://glass-haus.ru/wp-content/plugins/super-forms/uploads/php/files/b904fbc069fc64d795d1dcaf41e38a55/82611235212.pdf
- http://xn--clinicaquirogavilario-vbc.com/wp-content/plugins/super-forms/uploads/php/files/jr2nvulf248api1srqr9nrvn76/dirafo.pdf
- https://yourlightingbrand.com/wp-content/plugins/super-forms/uploads/php/files/b104f78450bec96d986f85ae5721815f/suvopezetixep.pdf
- http://bezagsecurity.cz/userfiles/94366259861.pdf
- http://simonide.org/userfiles/file/71079774298.pdf
- https://fleschimmo.lu/userfiles/files/keterawedexanomukojogori.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=suddenly+stop+breathing+while+sleeping
- 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_off00010107.bin2fbceeb48e02b0b8bee26c6e8c3ed49bc5a53268be09e6c2ed272198dc2046cf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10107 | 11188 bytes |
font_01_sfnt_off00011acb.bin4072a772a950cd4bd7aa278d438cb60ec190854d199b90148df17244a7dbfff1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11ACB | 17772 bytes |
font_02_sfnt_off0001498e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1498E | 16792 bytes |
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