MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains embedded JavaScript and numerous external URIs, many pointing to disposable hosting, suggesting it functions as a link farm. The primary URL, 'https://irlanc.ru/uplcv?utm_term=termux+apk+old+version+download', likely serves as a lure to download a second-stage payload or redirect to a phishing site.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://irlanc.ru/uplcv?utm_term=termux+apk+old+version+download PDF link annotation
- https://www.spitalmoldovanoua.ro/ckfinder/userfiles/files/31631007744.pdfIn PDF document text
- http://grandinhr.eu/images/user/file/53753733777.pdfIn PDF document text
- http://jpsacademy.com/slbdavbatala/userfiles/file/4547371364.pdfIn PDF document text
- https://encouragingmath.com/wp-content/plugins/super-forms/uploads/php/files/aaaf94d2740e97dacd915d5fe09851d8/zajajebisamolopufumo.pdfIn PDF document text
- http://xn--66-6kc8bfmkmjd.xn--p1ai/admin/ckfinder/userfiles/files/gupuxokuvapes.pdfIn PDF document text
- http://candleelectricals.com/uploaded_files/userfiles/files/gebonuzokurabotovijawefol.pdfIn PDF document text
- http://tomei4x4.jp/js/upload/files/1554867242.pdfIn PDF document text
- https://penzionradvanice.cz/res/file/4983341336.pdfIn PDF document text
- http://goref.ru/files/file/36218434097.pdfIn PDF document text
- http://dostrojar.sk/UserFiles/file/88612806160.pdfIn PDF document text
- http://pinxedien.net/upload/files/18086930438.pdfIn PDF document text
- https://bepcongnghiepphuchung.vn/userfiles/file/lelozabo.pdfIn PDF document text
- http://humidorio.de/ckfinder/userfiles/files/37610240458.pdfIn PDF document text
- http://gpba.ge/admin/ckeditor/ckfinder/userfiles/files/gumobelolinila.pdfIn PDF document text
- http://www.louisefarmersmith.com/admin/ckeditor/ckfinder/userfiles/files/18875941085.pdfIn PDF document text
- http://osstemcardiotec.com/files/fckeditor/file/1101854111614ccbf107707.pdfIn PDF document text
- https://mchs.kz/userfiles/File/purixusipovagevuxedawis.pdfIn PDF document text
- http://emachn.com/data/attachment/file/fozumirimisobex.pdfIn PDF document text
- http://wellogo.in/userfiles/file///potafimalipi.pdfIn PDF document text
- http://xn--o39a91gvwm83kbsn.net/FileData/ckfinder/files/20210921_B546974F158E294E.pdfIn PDF document text
- http://sonarkella.com/userfiles/file/zugogoratafenenigawa.pdfIn PDF document text
- https://geya99.com/ckfinder/userfiles/files/90483579504.pdfIn PDF document text
- https://bompentax.com/quangbasanpham/app/webroot/upload/image/files/mijoludije.pdfIn PDF document text
- http://carrozzeriabosini.net/userfiles/files/bijiminifalisezewo.pdfIn PDF document text
- http://www.videobezopasnost.ru/ckfinder/userfiles/files/68261099113.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_off0000b90b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB90B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d11d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD11D | 18732 bytes |
SHA-256: 29456ccd8ac0c6b64a0925bedad8b4d7c54528a53e4b57fc4431996994ceb31e |
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font_02_sfnt_off00010229.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10229 | 10864 bytes |
SHA-256: d2b42f751aa4d0c2e6b9a0d6a07b0d7161eedd0ef4a3549cbc4ffdae997d6cdc |
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