MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file contains embedded JavaScript, which is a common technique for executing malicious code. The heuristic 'SE_FAKE_CAPTCHA' indicates the document likely presents a fake verification prompt to lure the user into interacting with the malicious content. The numerous external URLs suggest a link farm designed to redirect users, potentially to phishing sites or further malware downloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9846
Heuristics 7
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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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Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHADocument displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
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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://philabc.ru/uplcv?utm_term=lucky+patcher+license+verification PDF link annotation
- https://kvartira-zalog.ru/wp-content/plugins/super-forms/uploads/php/files/994eac94b34b88945ec4e532fb79675b/32954477689.pdfIn PDF document text
- http://ffarchitettura.it/userfiles/files/58100922957.pdfIn PDF document text
- https://juhaszautovill.hu/userfiles/file/61474948090.pdfIn PDF document text
- http://tv-kitchen.ru/files/files/xitenutubejome.pdfIn PDF document text
- http://ivepe-elearning.gr/assets/UserFiles/mainHome/file/84081599546.pdfIn PDF document text
- http://scsychem.com/upload/files/28301919622.pdfIn PDF document text
- https://kenhquangcao.vn/uploads/files/nogemeredonaxawuxatowira.pdfIn PDF document text
- http://lukoilmarine.com/ckfinder/userfiles/files/16602355150.pdfIn PDF document text
- http://bulgankhangai.mn/userfiles/files/64653974060.pdfIn PDF document text
- https://shiksha24.com/userfiles/files/nagibelobebotom.pdfIn PDF document text
- http://olddieselparts.com/ckfinder/userfiles/files/87629345887.pdfIn PDF document text
- http://proreferee.ru/uploads/ckfinder/files/kuvogilasologomotavuzepip.pdfIn PDF document text
- https://searchlink.org/userfiles/file/41436261336.pdfIn PDF document text
- http://tamker.hu/userfiles/file/88621608880.pdfIn PDF document text
- https://skillmapmagazine.com/ckfinder/userfiles/files/90985675011.pdfIn PDF document text
- https://sensesgrouphk.com/louis/STARKGROUP/ckfinder/userfiles/files/nalavisigejisot.pdfIn PDF document text
- http://syekp.gr/sites/default/files/file/zatibefigumaboroxe.pdfIn PDF document text
- https://matratva.in/userfiles/file/fujarufofewuvuw.pdfIn PDF document text
- http://trust-law-firm.com/userfiles/file/20210906195521_1543581290.pdfIn PDF document text
- https://www.l-games.jp/js/ckfinder/userfiles/files/74838948901.pdfIn PDF document text
- https://on-call-anatomist.org/ckfinder/userfiles/files/48502696997.pdfIn PDF document text
- http://kooijobs.in/ckfinder/userfiles/files/mifemiseb.pdfIn PDF document text
- https://unaizahic.com/Files/files/weridasifupit.pdfIn PDF document text
- https://equimat-cheval.fr/file/30471334545.pdfIn PDF document text
- http://cathyknightwaite.com/ckfinder/userfiles/files/ritigiseziraxirakifaw.pdfIn PDF document text
- https://www.institutvzdelavani.cz/files/35560615829.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_off0000dab9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDAB9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f2cb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2CB | 17704 bytes |
SHA-256: 8dfe90e7ca9c8e082599acda2c6b3d297131ea2e71fea1527a671feea5bd63b2 |
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font_02_sfnt_off00012102.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12102 | 10908 bytes |
SHA-256: 11ba2d1ee116f702cbcf5f82c26a7bb6ff5df2d8bcdffa8103f149ac82fc20ac |
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