MALICIOUS
236
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics indicate it functions as a link farm, pointing to multiple compromised WordPress sites and disposable hosting, likely to distribute further payloads. The 'SE_PASSWORD_ARCHIVE_LURE' heuristic suggests the document may instruct the user to open a password-protected archive, a common tactic to evade initial security scans.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
Heuristics 8
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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 to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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://novo-foto.ru/ckfinder/userfiles/files/36606631338.pdf
- http://beautybybelief.com/admin/images/file/vezalimedurulip.pdf
- https://ceilford.org/wp-content/plugins/super-forms/uploads/php/files/281c13d97f1bf37f4a3490cd58fa5d4a/mojubovo.pdf
- https://cvenhancer.com/wp-content/plugins/super-forms/uploads/php/files/81afe7d729ff86b1c51abc95a2be0553/virigexiw.pdf
- http://www.risingstars.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16080fcaa1b267---74137432959.pdf
- http://www.inhd.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608a2ddb40bb3---rejimamoke.pdf
- http://www.canadavisaservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b1bbcd2e16---jidiregesodise.pdf
- https://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/7a7b7775c66a987276e5bd2e4ce60925/dirubemokir.pdf
- https://theshamrockpublecco.it/file/nivegegezonipevoxex.pdf
- https://vernadoc.com/wp-content/plugins/super-forms/uploads/php/files/959446e2dbdd3b4922a821391aab4d37/28859163440.pdf
- http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/75ltoatku0mav56uov3j932as3/neriguzerupozon.pdf
- http://chapraptti.org/userfiles/file/jubizipaxejubagilaxidada.pdf
- http://uniondeautoescuelas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a44ac53497a---pigedigoxaj.pdf
- https://yensaovinastar.com/media/files/28934324339.pdf
- http://bmhs1964.com/clients/a/ae/ae3b7fe25fc1fd458a9bccd7578bee9c/File/fufudosodukamoxogenozulit.pdf
- https://rhodium.vn/uploads/news_file/vadonisawujum.pdf
- http://nhs1966reunion.com/clients/1/1c/1ca8f1639ee69cd7806809ed3bcda9bb/File/34536183103.pdf
- https://munord.com/wp-content/plugins/super-forms/uploads/php/files/c8c5438c1b6addb840cc237576b17391/dizaxemexugodefole.pdf
- https://elitteaccesorios.com/wp-content/plugins/super-forms/uploads/php/files/3bg0oda1j0gom2mo10r2huskvn/bupake.pdf
- http://savvyais.com/userfiles/file/dusazivugosexej.pdf
- http://busangh.com/attfile/fckimg/file///2021070621139_466653864.pdf
- http://www.training4thefuture.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1608165b44f6b7---93400558619.pdf
- http://xn--h49al33a2zdp0eo1x.com/DATA/file/20210527045804.pdf
- http://sarahscupcakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a13d3c20fa2---dusexasasis.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=fisiolog%C3%ADa+del+ejercicio+jos%C3%A9+l%C3%B3pez+chicharro+pdf+gratis
- 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_off0000e0f5.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE0F5 | 16792 bytes |
font_01_sfnt_off0000f90c.bin61e3577f59609913f5f2dbaac2e161d03042cd6994704ced260f5b3f14389bb2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF90C | 11316 bytes |
font_02_sfnt_off000112e9.bin77d934be43657cb1c4efeb369f49255f6f9e8608e6ef15b49cdb3ea6b7ccc090 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x112E9 | 20160 bytes |
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