MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF contains embedded JavaScript, which is a common technique for delivering malicious content. The numerous external URLs, many hosted on compromised websites or disposable domains, suggest a link farm designed to redirect users to malicious sites. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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=fundamentos+de+fisica+resnick+6+edicion+pdf PDF link annotation
- http://hanabi-la.com/uploads/files/fefavad.pdfIn PDF document text
- http://alessandrobelleseveterinario.eu/userfiles/files/88523967372.pdfIn PDF document text
- http://taketty.xyz/js/ckfinder/userfiles/files/42163195565.pdfIn PDF document text
- https://www.tai.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1613a061623920---gupaf.pdfIn PDF document text
- https://allmassage.net/upload/file/20210910151949.pdfIn PDF document text
- http://reclaimsplus.com/wp-content/plugins/super-forms/uploads/php/files/e61ef43cd1813a1a94ef119899e0a2b0/94528159518.pdfIn PDF document text
- http://ameshamagazine.com/js/upload/files/8056488908.pdfIn PDF document text
- http://www.etoiles-recrutement.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612fbce54cfd3---31686052360.pdfIn PDF document text
- https://www.karelo.com/uploads/File/zifanol.pdfIn PDF document text
- http://brothersaluminium.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/16137a06646f9d---86057061093.pdfIn PDF document text
- http://theprofitnesstrainers.com/userfiles/file/77904933826.pdfIn PDF document text
- https://unitytradecapital.com/ckfinder/userfiles/files/popovepigujobis.pdfIn PDF document text
- https://terminarz.online/kosmetyczka/krakow/files/58282748719.pdfIn PDF document text
- https://majubesar.net/contents/files/16402205959.pdfIn PDF document text
- http://jatyn.cn/upfiles/202109/file/1631265083.pdfIn PDF document text
- https://sabagdasarov.ru/upload/file/90936394402.pdfIn PDF document text
- http://oembag.com/uploads/files/202109120847406777.pdfIn PDF document text
- https://www.beewellrx.com/wp-content/plugins/super-forms/uploads/php/files/3g94r5pn2ho4i7128507qac0np5tfjfi/9885031700.pdfIn PDF document text
- http://radecznica.pl/userfiles/file/49447167589.pdfIn PDF document text
- http://cn-polylysine.com/d/files/47019644004.pdfIn PDF document text
- https://bahispesinde.com/gnc/veri/_files/vimudiretomuvevipadobi.pdfIn PDF document text
- http://grgct.com/ckfinder/userfiles/files/4265746646.pdfIn PDF document text
- http://taaltoetsvo.nl/userfiles/file/62243236520.pdfIn PDF document text
- http://podhoru.cz/userfiles/file/39030079446.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_off0000df02.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF02 | 19848 bytes |
SHA-256: 38c978a5966d04f6caecaa1bf51de4fad41e06a6c23b1ebad66a933141979029 |
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font_01_sfnt_off000112dd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x112DD | 11072 bytes |
SHA-256: 2b7f21d7fa7c9a07c6dbb860b24ab0b6478ce719c1c2bec2b7c6c5138105b4fe |
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font_02_sfnt_off00012cb0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12CB0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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