MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, which is a common technique for malicious PDFs to execute code or redirect users. The ML classifier and ClamAV detection strongly indicate maliciousness. The sample also exhibits characteristics of a link farm, with numerous external URIs pointing to disposable domains, suggesting an attempt to manipulate search engine results or host phishing content.
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 http://vanprodukt.cz/UserFiles/File/luwasukiju.pdf In PDF document text
- http://druckmaschinenservice.com/uploads/fce/files/gedonotutolaririnitu.pdfIn PDF document text
- http://vp-dmsh.ru/admin/ckfinder/userfiles/files/75264818502.pdfIn PDF document text
- https://aletihad-group.com/userfiles/files/ziwujila.pdfIn PDF document text
- http://orgue-chantepie.info/FCKeditor/upload/file/nufabun.pdfIn PDF document text
- http://mousike.it/img_ins/files/99576316089.pdfIn PDF document text
- http://smenergy.kr/uploaded/file/1297474413613f90427f72b.pdfIn PDF document text
- http://zatoodesign.com/userfiles/files/wuxafirujituw.pdfIn PDF document text
- http://ventiliatoriai.lt/js/ckfinder/userfiles/files/59874027645.pdfIn PDF document text
- https://taperagi.com/contents/files/sikefukefuf.pdfIn PDF document text
- http://chaputlawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/98186753096.pdfIn PDF document text
- http://vstarmp.cn/upload/files/20210909_121127.pdfIn PDF document text
- http://gesundimjob.at/images/content/files/nevij.pdfIn PDF document text
- http://kevinmcallisterlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/mixizasimuko.pdfIn PDF document text
- https://polytex.de/sites/default/files/detelevafijubi.pdfIn PDF document text
- http://fashionflutters.com/ckfinder/userfiles/files/fetapugodero.pdfIn PDF document text
- http://eventclub.pl/userfiles/file/98009762607.pdfIn PDF document text
- https://royal-art.pl/uploads/userfiles/files/27104263570.pdfIn PDF document text
- http://goldenbaycruisesagent.com/userfiles/file/99547237799.pdfIn PDF document text
- https://onecre.com/images/content/files/28134896938.pdfIn PDF document text
- http://mobilni-kadernictvi.cz/files/file/32325221177.pdfIn PDF document text
- https://abzesolar.com/uploads/files/gajitevemenikadag.pdfIn PDF document text
- http://baharemadinah.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132982f04243---52039494846.pdfIn PDF document text
- http://houtackers.nl/userfiles/file/pajowidan.pdfIn PDF document text
- http://kengosushionlineorder.com/uploads/files/nufowebi.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=pokemon+fire+red+walk+through+walls+cheat+codebreakerPDF 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_off0000bc73.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBC73 | 11344 bytes |
SHA-256: 79a41f8f1d42f2d5f1d6f7b413adaea6c778cdb3a53c1eed996c4cae1874ec59 |
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font_01_sfnt_off0000d6d5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD6D5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000eee7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEEE7 | 17032 bytes |
SHA-256: f2fbf61e9d53e2287b84b3dd3f069e5cb872c4a589021c311b713651ffcccd23 |
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