MALICIOUS
182
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and multiple external URIs, many of which point to compromised WordPress sites acting as link farms. One URI uses a raw IP address, indicating a potential attempt to obscure the true destination. The ClamAV detection and ML classifier strongly suggest malicious intent, likely to deliver a phishing lure or a second-stage payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.7451
Heuristics 7
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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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Clickable URI points to raw IP address medium PDF_URI_IP_LITERALPDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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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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://laborke.ru/uplcv?utm_term=irs+form+1040+qualified+dividends+and+capital+gain+worksheet PDF link annotation
- https://creationstationdance.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a3e95357b92---18181553239.pdfIn PDF document text
- http://127.0.0.1/bantraicay/js/ckfinder/userfiles/files/pegilobovigadusajipa.pdfPDF link annotation
- http://kimbuunguyen.com/uploads/userfiles/file/62017967161.pdfIn PDF document text
- http://infinity-pro.ru/userfiles/file/56122449187.pdfIn PDF document text
- http://tsg-vaganovskoe.ru/ckfinder/userfiles/files/galuwororaxigubaripogig.pdfIn PDF document text
- https://k-kompany.ru/wp-content/plugins/super-forms/uploads/php/files/a5d8b529157fe79139e6ca12cea25fe1/5460011231.pdfIn PDF document text
- http://accessiblevehicleservices.com/userfiles/file/kolurowumuvaju.pdfIn PDF document text
- https://wegofa.com/userfiles/file/jakigub.pdfIn PDF document text
- http://lottfamilyreunion.com/clients/878857/File/54883221286.pdfIn PDF document text
- http://nemdanangpho.com/uploads/2021-06-02/images/files/92680244904.pdfIn PDF document text
- https://laps.pl/userfiles/file/minagijakijixufibinas.pdfIn PDF document text
- https://laneopx.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d5887c94c1---kasazikekaxekuzinenipejas.pdfIn PDF document text
- http://www.thelawchamber.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f82727e26d4---mufibidugidag.pdfIn PDF document text
- https://dgssu.com/upfolder/e/files/20210901130845.pdfIn PDF document text
- http://myucmas.com/userfiles/file/29013813023.pdfIn PDF document text
- https://foxtailmag.net/wp-content/plugins/super-forms/uploads/php/files/a7fbcc1bf66d1a2b772c57601307af10/2941197611.pdfIn PDF document text
- https://www.sussexweddingservices.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1608c8df363464---6972267591.pdfIn PDF document text
- https://www.hdontheroadnapoli.it/wp-content/plugins/formcraft/file-upload/server/content/files/160ee0b1535bb6---puximegefuvobidi.pdfIn PDF document text
- https://www.ayersworthglen.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b21e1cc8d70---teradi.pdfIn PDF document text
- https://israelonthehouse.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d1df66d87b4---letipasotiborim.pdfIn PDF document text
- http://xn--90aoj0agf7cq.xn--p1ai/uploads/files/29111668113.pdfIn PDF document text
- https://mar3ol.com/Files/files/73372217186.pdfIn PDF document text
- https://contabil-fiscal.ro/mm/file/90121664589.pdfIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ec73.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC73 | 11760 bytes |
SHA-256: dd9bdefb7a5d5cde998b7c7ad6da84165523562b701127bac50ac19622d521df |
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