MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The file is a PDF containing numerous links, many of which point to compromised WordPress sites. The ML classifier and ClamAV detection strongly indicate malicious intent, specifically a phishing or malware distribution campaign. The embedded links are the primary indicators of compromise, likely serving as lures to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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.unidacardoso.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16094fbf522681---xizexosivajowinutaj.pdf In PDF document text
- https://xn--64-mlcufjjaii0l.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/3ed1516729a5400d7cd68cd4d95708c8/zoduvurimewuzorefevise.pdfIn PDF document text
- http://www.tecnotrefg.it/wp-content/plugins/formcraft/file-upload/server/content/files/160a587692598d---mubek.pdfIn PDF document text
- https://strechybenesov.cz/content/vubemuf.pdfIn PDF document text
- http://asesoriagarpe.com/wp-content/plugins/formcraft/file-upload/server/content/files/16095149dbd47a---88913780598.pdfIn PDF document text
- http://northstarbaptisttyler.com/clients/a/a4/a4b4c2e389351fb2dee96c3f727c6a57/File/27272705291.pdfIn PDF document text
- http://www.julitolaschools.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608bbcf20e706---tonurowumefake.pdfIn PDF document text
- http://hillsdalehorseboarding.com/ckfinder/userfiles/files/tosudajemuzonosa.pdfIn PDF document text
- https://carrieres-pierre.com/userfiles/file/3635907885.pdfIn PDF document text
- http://constructionone.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1611a60ade4bf6---makaposapuzow.pdfIn PDF document text
- http://machinegroup.ru/img/outer/files/vinijuvabonukigisowudigix.pdfIn PDF document text
- https://lllk.ru/wp-content/plugins/super-forms/uploads/php/files/edfcf91114bce6e6a714120c576a6bcf/52815857991.pdfIn PDF document text
- http://tmkb.org.tr/ckfinder/userfiles/files/59370138210.pdfIn PDF document text
- https://limpjet.com.br/wp-content/plugins/super-forms/uploads/php/files/a64df169879173fda6c8d99991f3c7fa/memida.pdfIn PDF document text
- https://pametnidom.hr/pametne_kuce/userfiles/file/nowevexifole.pdfIn PDF document text
- http://riverla.vn/uploads/userfiles/file/bazenejibigadematefo.pdfIn PDF document text
- https://bestofbucerias.com/upload/file/kajameliguvominuseko.pdfIn PDF document text
- https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/d5d2e68648dpm9tpbr08g1ptij/68465678321.pdfIn PDF document text
- http://www.colegiometa.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/16070392b405f9---metutamumozu.pdfIn PDF document text
- http://halongwave.com/userfiles/file/80257388643.pdfIn PDF document text
- http://jfhcoaching.nl/userfiles/files/ponajazar.pdfIn PDF document text
- https://kottayammedicalcollege.org/CMS/ckfinder/userfiles/files/64551356327.pdfIn PDF document text
- http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/16088174c3c51b---35806157163.pdfIn PDF document text
- https://loan-financial.com/wp-content/plugins/super-forms/uploads/php/files/550dc42235f07397e7d09e91416b5cb6/nomederupeto.pdfIn PDF document text
- https://noihoithanhtuan.com/media/ftp/file/5651961436.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=combining+pdf+files+for+freePDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d684.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD684 | 17348 bytes |
SHA-256: 6116e4da00e2bce611be3c2a1e639fd62b076d3e4a530f30584718a8d572bf41 |
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font_01_sfnt_off000103ab.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x103AB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011bc2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11BC2 | 10752 bytes |
SHA-256: 9c564b4bce32b4ef2c29c3580aebf705783b0bccefefd42870526fc058ded4e7 |
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