MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and multiple URLs, with a critical ClamAV detection indicating it's a phishing trojan. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic suggests the URLs are part of a link farm, likely intended to host malicious content or redirect users. The embedded JavaScript is a common method for exploiting PDF vulnerabilities or initiating further malicious actions.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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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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 http://opt-russtd.ru/data_center/upload_pictures/file/37448711771.pdf In PDF document text
- http://mylodge-naoshima.com/images/blog/file/53391878026.pdfIn PDF document text
- http://bachtungcompany.com/upload/files/dudakotora.pdfIn PDF document text
- https://sirikulsteel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612eab4429b08---winasewufizopokomadulob.pdfIn PDF document text
- https://zivotzaokny.eu/res/file/dusakomovixaxapugoluzu.pdfIn PDF document text
- http://silverspringabw.com/uploads/files/fowaxipefulowufe.pdfIn PDF document text
- http://bizwd.com/wp-content/plugins/formcraft/file-upload/server/content/files/16146f58de4024---90472257774.pdfIn PDF document text
- http://msslink.ru/userfiles/files/jatapadu.pdfIn PDF document text
- http://kaie.org/userfiles/file/20210915185420.pdfIn PDF document text
- https://queensflower.nl/clientfiles/11353979009.pdfIn PDF document text
- https://rewaqousha.net/userfiles/files/75733034829.pdfIn PDF document text
- http://anhuicrew.com/upload_fck/file/2021-9-14/20210914090853301619.pdfIn PDF document text
- http://dobre-jaja.com/Upload/file/fonarenobepenodibo.pdfIn PDF document text
- http://peak-experience-japan.com/images/blog/file/47115981615.pdfIn PDF document text
- https://nordiskvillaventilation.dk/userfiles/file/20121800574.pdfIn PDF document text
- https://groupunsur1.com/contents/files/60076041107.pdfIn PDF document text
- http://nage-z.com/ckfinder/userfiles/files/ferakigep.pdfIn PDF document text
- https://tradingphrases.com/userfiles/files/8370998241.pdfIn PDF document text
- http://realcomfort.ru/content/upload/file/ruvominaguranaxoludikexe.pdfIn PDF document text
- http://nationalcoopadvisors.com/userfiles/files/34001862563.pdfIn PDF document text
- http://escalierdurire.fr/ckfinder/userfiles/files/mifenoloz.pdfIn PDF document text
- http://tvkinter.com/file_media/file_image/file/14097315775.pdfIn PDF document text
- http://kidsjeodo.com/images/files/68852884888.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=chapter+three+research+methodologyPDF link annotation
- http://www.cst.rnu.tn/js/ckfinder/userfiles/files/birodajumim.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_off0000af65.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAF65 | 10908 bytes |
SHA-256: 12fba6979e18899776f2ba6d95933e0217c5a07c5b37ee4018b1b7a74451b158 |
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font_01_sfnt_off0000c88a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC88A | 15616 bytes |
SHA-256: 335d847335bdc26c341c04c32ae3eb62d263082fd642caa0208396b27c4e0769 |
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font_02_sfnt_off0000f032.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF032 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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