MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous external links, with several heuristics indicating it functions as a link farm. Notably, some links point to compromised WordPress upload storage, suggesting a potential distribution mechanism for further malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9771
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://beaszemin.com/files/2397755175.pdf
- http://lammermoor.net/imagenes/file/1685126883.pdf
- https://accidentmatters.com/ckfinder/userfiles/files/88775292245.pdf
- http://pocatellocampfire.com/wp-content/plugins/super-forms/uploads/php/files/4qftpft53v8qss8eg0rldcq5c7/wevijenudogexitiwape.pdf
- https://matricula.netlandschool.cl/files/fodepalowudizazitemu.pdf
- http://alphamarino.kz/images/news/file/pikenatiwoluzanuwa.pdf
- http://architettosirocco.it/userfiles/files/45155961469.pdf
- http://sns.hu/_user/file/jafuxumofifetafaresil.pdf
- http://fairbank-ia.org/admin/ckfinder/userfiles/files/87696519782.pdf
- http://jts-electrical.co.uk/ckfinder/userfiles/files/poravuwuzizitaxelajed.pdf
- https://panegovernance.com/ourprojects/chowki/UserFiles/file/rupano.pdf
- https://www.institutvzdelavani.cz/files/vudaviwilolipugu.pdf
- https://szabobuszberles.hu/files/files/68396562218.pdf
- https://sistemagestiondpr.com/userfiles/file/kuruxufigem.pdf
- https://bettenbaehren.de/wp-content/plugins/formcraft/file-upload/server/content/files/16130bba9ac9cb---83484918480.pdf
- http://rebornfair.com/FileData/ckfinder/files/20210910_EB77C7F4B4585C5B.pdf
- https://www.hungarianassociation.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140fb4b2dff5---dapeselavitizode.pdf
- https://sportsht.com/userfiles/file/pinigoxupavapobisig.pdf
- http://erulingua.hu/uploads/content_files/files/dezetebi.pdf
- http://hoangnamjsc.com/upload/files/28141160561.pdf
- http://www.bash.cl/media/file/fovepevadakijo.pdf
- https://calendarsunrooms.com/userfiles/files/2165277295.pdf
- http://malbreil.com/userfiles/file/lizedinudobogufebeg.pdf
- http://hoya-system.com/uploads/files/202109231349078761.pdf
- http://coolbiotech.com/upload/files/viwawisodutegokeninezado.pdf
- https://1sis.com/wp-content/plugins/formcraft/file-upload/server/content/files/16148743437c2e---fojupido.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=psalter+of+the+blessed+virgin+mary+pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- 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_off0000b2b6.bin015cc6640ecbd2ae3e5b19c334230b0be16e740e1bbe559037c21cf356fa0abb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB2B6 | 11264 bytes |
font_01_sfnt_off0000cc8f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCC8F | 16792 bytes |
font_02_sfnt_off0000e4a1.bin4d7ae07c9efd1b454761e473b604ec68625e40e4e5a13428afba68e363386bc7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE4A1 | 15484 bytes |
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