MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript, which is a common technique for executing malicious code. It also features a large number of external URLs, many of which appear to be part of a link farm, suggesting a phishing or malware distribution campaign. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or trojan delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
Heuristics 6
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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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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://crewmak.ru/uplcv?utm_term=make+google+keyboard+bigger PDF link annotation
- http://georgewongdesign.com/gwd/upload/files/tepagu.pdfIn PDF document text
- http://songpinhao.com/userfiles/files/konanodemewugo.pdfIn PDF document text
- http://lamay.de/userfiles/file/gikadixune.pdfIn PDF document text
- http://finalstage.biz/js/upload/files/22880960072.pdfIn PDF document text
- http://xn--djr00fsyfv0o5qgy9u.net/filespath/files/20210911155000.pdfIn PDF document text
- https://enilubricant.hoakhanh.vn/uploads/image/files/pafawiru.pdfIn PDF document text
- https://hondaotohaiphong.vn/upload/files/xafelove.pdfIn PDF document text
- https://www.gs-gleichmann.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613b0fe03466e---zuluvuwenuxiz.pdfIn PDF document text
- http://miryangpension.com/FileData/ckfinder/files/20210911_5D0BCDD432E35DC9.pdfIn PDF document text
- http://www.heksan.com.pl/file/13477611140.pdfIn PDF document text
- http://gmtshipping.com/attachment/file/tixidasulezo.pdfIn PDF document text
- http://hstechno.com/userData/ebizro_board/file/tofomurikogowav.pdfIn PDF document text
- https://ctners.com/ckfinder/userfiles/files/39826253297.pdfIn PDF document text
- http://www.gleason.com.au/application/third_party/ckfinder/userfiles/files/jugazawaxisosaruka.pdfIn PDF document text
- https://almavilag.hu/files/files/losepabowixu.pdfIn PDF document text
- http://adhdadvisory.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f32289e8fe---puxikagoxopefawezokizajit.pdfIn PDF document text
- https://petek.biz/resimler/files/tavowamuxudu.pdfIn PDF document text
- https://spirit-legend-enterprises.com/webroot/editor-uploads/files/1907592286.pdfIn PDF document text
- http://dienlanhhuubinh.com/upload/files/76761708615.pdfIn PDF document text
- https://mcsfood.com/images/file/degaziputifudizutemo.pdfIn PDF document text
- http://abw10thstreetne.com/uploads/files/87214226052.pdfIn PDF document text
- http://saludocupacionalpso.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/16130527e5b9de---seruzebijaxevojesulu.pdfIn PDF document text
- http://argyleliquidations.com/userfiles/files/31617784628.pdfIn PDF document text
- http://chapelguild.com/images/usr/sesibapuvula.pdfIn PDF document text
- http://splogservice.ru/content/file/ruzorovatumewekevazixul.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_off0000b7d0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB7D0 | 16580 bytes |
SHA-256: 29f001046fa556e6374ee6514d7752ee52d399c81bd195bde3c8e4d834942199 |
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font_01_sfnt_off0000e2a1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE2A1 | 10392 bytes |
SHA-256: b5ce29496bd0ce11a8b990bf20c292ecc53fb1ed5f2b914535aeff803ce723b3 |
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font_02_sfnt_off0000fa08.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA08 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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