MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF document containing embedded JavaScript, which is often used to obfuscate malicious content or redirect users. The PDF also functions as a link farm, presenting numerous links to external PDF files, many of which are hosted on potentially disposable domains. This behavior, combined with the ML classifier and ClamAV detection, strongly suggests a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
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://sameiroeventos.pt/ficheiros/lavitebaxupotamu.pdf In PDF document text
- http://techsystem.gr/data/uploads/ckeditor/files/69896318063.pdfIn PDF document text
- http://veszpremkosar.hu/_user/file/70179761359.pdfIn PDF document text
- http://xn----gtbercbfedtm3b.xn--p1ai/admin/ckfinder/userfiles/files/84385149867.pdfIn PDF document text
- https://hosvagyok.hu/userfiles/file/9690273417.pdfIn PDF document text
- http://lammensfilip.be/uploads/files/wijipikelu.pdfIn PDF document text
- http://rialta.ie/userfiles/files/62281755407.pdfIn PDF document text
- https://szabolcsipeter.com/userfiles/file/36461056433.pdfIn PDF document text
- https://landtop.com/filespath/files/20210901222547.pdfIn PDF document text
- http://talk200.com/admin/admin/uploadfiles/file/pavatiwosolezivebaxunorej.pdfIn PDF document text
- http://kristaldicarlo.com/userfiles/file/rufivokowomarimajijesa.pdfIn PDF document text
- http://ydyb.com/filespath/files/20210915192737.pdfIn PDF document text
- http://metalltechnik-kutschi.at/48805491099.pdfIn PDF document text
- https://ginniglobal.com/uploads/file/bezereg.pdfIn PDF document text
- https://ph2020.org/ckfinder/userfiles/files/rasokokumaxi.pdfIn PDF document text
- http://pcwenhua.com/uploadimg/file/16311351721472409632.pdfIn PDF document text
- http://addisonplaza.abwingsmd.com/uploads/files/74487229000.pdfIn PDF document text
- http://chhattisgarhsanskritboard.in/sharpinstitute/images/files/guzuroxituxonepoxixa.pdfIn PDF document text
- https://www.potterycommercials.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1612f3987ad311---vitimexoxor.pdfIn PDF document text
- http://boracayg.com/FileData/ckfinder/files/20210904_2E8B3E5CC27DADC4.pdfIn PDF document text
- http://cbestdesign.com/ckfinder/images_store/files/5286802485.pdfIn PDF document text
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135b5c957e98---genaxusevujeti.pdfIn PDF document text
- http://friend5190.xyz/js/ckfinder/userfiles/files/kugukenikanobawog.pdfIn PDF document text
- https://satybharat.com/ci/userfiles/files/64199929059.pdfIn PDF document text
- http://dispensapertutti.com/userfiles/files/sovuzudevidosi.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=tamil+magazines+free+downloadPDF 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_off0000dcef.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDCEF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f506.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF506 | 10708 bytes |
SHA-256: d705c8195f42195c449ff955d7d26d88250c558aa484ac6fad8f4008f0900288 |
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font_02_sfnt_off00010d6b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D6B | 16620 bytes |
SHA-256: dbf7430f4526a51d0c76a5d829730c7111b2c702ec402afd87b31d30a8be3c5f |
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