MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs that form a link farm, directing users to potentially malicious websites. Heuristics indicate these links are hosted on compromised CMS upload storage and disposable hosting, suggesting a phishing or scam attempt. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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://catamma.ru/uplcv?utm_term=quadratic+function+and+graph PDF link annotation
- http://herningbadintra.dk/app/webroot/upload/files/rotilamusalejonevej.pdfIn PDF document text
- https://bimore.vn/webroot/img/files/15461562347.pdfIn PDF document text
- http://dainichiji.com/upload_ckr/files/72996871724.pdfIn PDF document text
- https://akconta.com/uploads/files/wojut.pdfIn PDF document text
- http://www.alfainstal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1615336ed6cf55---7436950480.pdfIn PDF document text
- https://elpollopaulino.com/cenavarra_userfiles/files/taxiduximokozo.pdfIn PDF document text
- http://twtime.com/uploads/files/202109162018433885.pdfIn PDF document text
- https://www.dooleysnaturalgas.com/ckfinder/userfiles/files/91012692831.pdfIn PDF document text
- http://chinhlytailieuluutru.com/media/ftp/file/wikomaxubupagivuno.pdfIn PDF document text
- http://sklepjola.pl/userfiles/file/13594074375.pdfIn PDF document text
- http://tweddlefoto.com/files_contenidos/upload/files/lakuwokovate.pdfIn PDF document text
- http://www.stratcareerservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/16152a20e43532---88550578003.pdfIn PDF document text
- http://dangkydoanhnghiep.org/hinhanh_fckeditor/file/21160498695.pdfIn PDF document text
- https://newcar-rental.com/uploads/files/202109011003555581.pdfIn PDF document text
- http://windcampus.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615271ec9a0e9---vafofukip.pdfIn PDF document text
- http://kuwaited.com/cote_dor_import/admin/ckfinder/userfiles/files/meruzemasanax.pdfIn PDF document text
- https://mbamantra.com/ci/userfiles/files/vorev.pdfIn PDF document text
- http://baltyk.recykling-rejs.pl/imgturysta/files/jijanosa.pdfIn PDF document text
- http://uniroll.pl/user_images/file/40213278512.pdfIn PDF document text
- http://dkstores.gr/userfiles/file/29692315759.pdfIn PDF document text
- https://kientrucqhouse.com/uploads/image/files/zanulebudupo.pdfIn PDF document text
- https://dortmundpools.com/contents/files/15827819560.pdfIn PDF document text
- http://nuocmambason.com/upload/fckimagesfile/9153e160e0fa349db19896c3b694df0a.pdfIn PDF document text
- 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_off0000afb1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAFB1 | 16464 bytes |
SHA-256: 1ad02124f773661b9e1287cc44269606fd803417be20f0007648a5e70c0b6b74 |
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font_01_sfnt_off0000da30.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA30 | 10712 bytes |
SHA-256: 49050becb60d1c62b98bc0098f66d65f2c47688669232a1133abe4b34a2e2f0d |
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font_02_sfnt_off0000f294.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF294 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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