MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier. It contains numerous external links, many pointing to compromised CMS uploads or disposable hosting, suggesting a phishing or malware distribution scheme. The presence of embedded URLs and the nature of the heuristics indicate it's likely used as a lure to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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://chcial.ru/uplcv?utm_term=download+shadow+fight+2+unlimited+gems PDF link annotation
- http://rulada.by/upload/editor/files/pizesuwewigejusawili.pdfIn PDF document text
- http://scsychem.com/upload/files/zedetudijer.pdfIn PDF document text
- http://ctyrkolky-gamax.cz/data/dokumenty/12940227687.pdfIn PDF document text
- http://www.nbrownies.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161382b44ce832---nupakenuxofabodelojabok.pdfIn PDF document text
- http://vincityhomes.vn/wp-content/plugins/super-forms/uploads/php/files/nn4hn9qmcn1t78i28o63c994km/23671534605.pdfIn PDF document text
- http://avvolodin.ru/upload/file/62800463688.pdfIn PDF document text
- http://specialcats.nl/media/files/tefatuzu.pdfIn PDF document text
- http://vallovin.it/userfiles/files/rafatonorubok.pdfIn PDF document text
- http://ilturismoinitalia.it/userfiles/files/23679238696.pdfIn PDF document text
- https://retentionstudentexperience.com/wp-content/plugins/formcraft/file-upload/server/content/files/161353752a6aac---44065111143.pdfIn PDF document text
- http://imobilestore.de/userfiles/file/16808937663.pdfIn PDF document text
- http://hoachattn.com/image/files/vogadurududukaduv.pdfIn PDF document text
- http://aj-freight.com/ckfinder/userfiles/files/10478595174.pdfIn PDF document text
- http://ydis.kr/userfiles/file/051215279597.pdfIn PDF document text
- https://eminenceconstruction.ca/viking1/uploads/files/nokavojezajuzila.pdfIn PDF document text
- https://elpollopaulino.com/cenavarra_userfiles/files/pasujobujefuduna.pdfIn PDF document text
- http://writtenmail.com/upload_images/file/xewitekizufedup.pdfIn PDF document text
- http://orderbestwings.com/uploads/files/12158093299.pdfIn PDF document text
- http://52fotki.ru/ckfinder/userfiles/files/difad.pdfIn PDF document text
- http://crmrealty360degree.in/ci/userfiles/files/kadevinusuvazolijeligise.pdfIn PDF document text
- http://ubytovani-budejovice.cz/picture/vtextu/file/78010347484.pdfIn PDF document text
- http://satcomlink.com/userData/board/file/bapozeza.pdfIn PDF document text
- https://szallas-karpatalja.net/upload/82064693312.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_off0000da10.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA10 | 11008 bytes |
SHA-256: 91057ff37246f7eea996028acfcdd05aedf2fa9b6d48483a7ebc2390366b02c4 |
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font_01_sfnt_off0000f355.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF355 | 17432 bytes |
SHA-256: 8e477de1f9c27eb54d3611d53acece72ba08e1858555f1db9d4d7c277ab61700 |
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font_02_sfnt_off0001209f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1209F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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