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 malicious PDFs. It also contains numerous URLs, many of which point to other PDF files, suggesting a link farm or distribution network. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9905
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 http://thephinhmienbac.com/upload/files/powisagogeborilasum.pdf In PDF document text
- https://i-chat.tw/js/ckfinder/userfiles/files/dotekawosinefivelajoz.pdfIn PDF document text
- https://tylbm.com/Upload/ckeditor/files/35600642642.pdfIn PDF document text
- http://shinies.ru/img/lib/file/16637476361.pdfIn PDF document text
- http://shopgraeagle.com/ckeditor/uploads/files/jabodi.pdfIn PDF document text
- http://metalzilemboeventi.com/userfiles/files/lofajokotewama.pdfIn PDF document text
- http://gpkoaee.ru/ckfinder/userfiles/files/24921067543.pdfIn PDF document text
- http://first-group.kr/ckupload/files/43969335313.pdfIn PDF document text
- http://sayarbobinaj.com/file/pateved.pdfIn PDF document text
- http://stagelight.pl/userfiles/files/vijisedatamakuto.pdfIn PDF document text
- http://abwrosedale.com/uploads/files/zoselenigokokelinido.pdfIn PDF document text
- http://sparkpro.lv/content/file/58799323823.pdfIn PDF document text
- https://makenie.com/upload/files/zijej.pdfIn PDF document text
- https://meesens.be/KrMee/Tekstverwerker/xizedapebenewi.pdfIn PDF document text
- http://elitk.ru/_files/tuzizakewumexidu.pdfIn PDF document text
- https://greenfuturevietnam.com/Upload/files/bonisunozijatuga.pdfIn PDF document text
- http://lex.tj/img/file/pezivijexogupuvuva.pdfIn PDF document text
- https://himalayanthailand.com/image/upload/File/pusawexosuwiratotogunegug.pdfIn PDF document text
- https://ww150004.linebot.net/upfile/files/20210910030135.pdfIn PDF document text
- https://lederstuhlshop.de/ckfinder/userfiles/files/78219098956.pdfIn PDF document text
- http://fsgzb.com/upfolder/e/files/20210902130807.pdfIn PDF document text
- http://myucpb.com/userfiles/file/wovisudisekemekosowadik.pdfIn PDF document text
- http://attlas.center/userfiles/file/81456901814.pdfIn PDF document text
- https://leresto-niort.fr/images/userfiles/files/66173895655.pdfIn PDF document text
- http://compagniaviaggi.gattinonimondodivacanze.it/themes/userfiles/files/81672215319.pdfIn PDF document text
- http://xn----1-6cdapb2bdyqawnpcindqfc.xn--p1ai/media/file/20445375012.pdfIn PDF document text
- https://www.bouwenaaneensterkwerkgeversmerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613bf15f92f0a---dojasi.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=going+postal+terry+pratchett+pdfPDF link annotation
- 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_off0000e684.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE684 | 17948 bytes |
SHA-256: eb12aa0b9b5807e3a09c889068f66e83c6e3a924c169ab901e5d6e4b8fd95028 |
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font_01_sfnt_off000114c3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x114C3 | 11052 bytes |
SHA-256: f894fccbef74d30b0d57a302f9efaf3c813f1471fa7c5be08bd7174b1c91a125 |
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font_02_sfnt_off00012e51.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12E51 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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