MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains an embedded JavaScript stream and multiple external URIs that form a link farm. These links predominantly point to other PDF files hosted on compromised or disposable domains, suggesting a phishing or malware distribution campaign. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to trick users into downloading further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://irlanc.ru/uplcv?utm_term=chal+mera+putt+2+full+hd+movie+free+download
- https://ukmriptek.org/codeIgniter-hmvc/userfiles/files/vukuviduke.pdf
- https://8cj2aja7-8mxb.com/contents/files/61409485377.pdf
- http://www.a-fairys-choice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614e437f3ac2b---dimikosufunilewana.pdf
- https://aguiapromocional.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161516ff1b1af8---61024646875.pdf
- http://titadoorbinhduong.com/upload/files/33280666258.pdf
- https://davnosti.ru/upload/patojubobavodaba.pdf
- http://associatedreclaimed.com/userfiles/files/80970922509.pdf
- http://j-club.eu/userfiles/file/35376962343.pdf
- https://www.reparaciondebomba.com.ar/wp-content/plugins/super-forms/uploads/php/files/e9rk24n10mjd7549b354c5bo91/13101561676.pdf
- https://aneri12.eu/res/file/88716945994.pdf
- http://www.accessibilite-salle-eau.com/ckfinder/userfiles/files/puzijobose.pdf
- http://i-tos.com/userData/board/file/64227580206.pdf
- http://guerrazzi.info/userfiles/files/37469273334.pdf
- https://sfasg.jp/js/ckfinder/userfiles/files/56396710112.pdf
- http://annassteen.com/ckfinder/userfiles/files/14560100842.pdf
- http://www.jasolasia.com/image/upload/File/54144411318.pdf
- https://cebrigantina.com/025-CEB/images-editor/file/woduwidu.pdf
- https://ta-taiwan.com/app/webroot/userfiles/files/jujibosikivu.pdf
- http://dieterheich.de/images/uploads/file/depupizasabowuzofudesig.pdf
- https://autoskola-scp.com/files/pinawazuwufotegom.pdf
- https://inchirieriavioane.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16130ce724f6b3---defujusenekax.pdf
- http://www.cst.rnu.tn/js/ckfinder/userfiles/files/38369717464.pdf
- 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_off0000ae29.bincd95c5fcdf6a0651e62e28d0dfb51a68953a97fb3b819555155c2b2fee754015 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAE29 | 16624 bytes |
font_01_sfnt_off0000d8aa.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8AA | 16792 bytes |
font_02_sfnt_off0000f0c1.bina86f8e49a78161fed8db7dc77b2ae11119115c1a3bb74e29ff06ba39bac94147 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0C1 | 11000 bytes |
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