MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
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 of which point to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of embedded JavaScript, though not directly executed in this static analysis, is a common technique for exploiting PDF vulnerabilities or initiating further malicious actions.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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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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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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://wastran.ru/uplcv?utm_term=stunt+car+4 PDF link annotation
- http://kalkulacka-hypo.cz/userfiles/files/rumawogiludepesun.pdfIn PDF document text
- http://naosgym.com/userfiles/files/85419208595.pdfIn PDF document text
- http://garageanything.com/js/upload/files/nudaj.pdfIn PDF document text
- http://sz-nuoyi.com/Upload/file/2021090404503065933.pdfIn PDF document text
- http://espressobuilders.com/app/webroot/files/userfiles/files/38814643102.pdfIn PDF document text
- http://musicincw.com/fckeditor/userfiles/image/dovofukarejatozoma.pdfIn PDF document text
- https://willes-gb.com/uploads/files/202109060453279965.pdfIn PDF document text
- http://maradonasalud.com.ar/ckeditor/ckfinder/userfiles/files/15423346462.pdfIn PDF document text
- http://adabaskimerkezi.com/upload/file/82227024502.pdfIn PDF document text
- http://www.peritaonline.es/ckfinder/userfiles/files/23999837154.pdfIn PDF document text
- https://happyfun.tw/uploads/files/202109032346591569.pdfIn PDF document text
- http://solarhomepage.ch/fckeditor/editor/images/file/11499885020.pdfIn PDF document text
- http://drvision.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613c421f558f6---45428433277.pdfIn PDF document text
- http://themultifold.com/wp-content/plugins/super-forms/uploads/php/files/6q0g1bsk0mkom9ur0qr5bural3/delineselagesuzudud.pdfIn PDF document text
- https://topclassgardening.nl/images/file/97392127128.pdfIn PDF document text
- https://woodfur.in/userfiles/file/97739145254.pdfIn PDF document text
- http://jpind.pl/userfiles/file/xozaxewuw.pdfIn PDF document text
- https://monyetjoget.com/contents/files/mopomi.pdfIn PDF document text
- http://smithmurdock.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130199c26171---negatodosakugewurobazi.pdfIn PDF document text
- http://www.alcera.ca/userfiles/file/70920175560.pdfIn PDF document text
- http://guanzhuli.com/userfiles/file/povatosaguxetotafofarum.pdfIn PDF document text
- https://postelezmasivu-liberec.cz/ckfinder/userfiles/files/butefibubig.pdfIn PDF document text
- https://energiadirect.pl/application/resources/ckfinder/userfiles/files/49891722899.pdfIn PDF document text
- https://olterus.net/contents/files/9902568763.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_off0000bf1d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBF1D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d733.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD733 | 9920 bytes |
SHA-256: c3f4384ec99f1bf6e32bc30f38f91851c3da74c84f022080f2651aad7ac77651 |
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font_02_sfnt_off0000ed47.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED47 | 17808 bytes |
SHA-256: b91f51c7a4b186ca256d304ec44e9687bb067ff6f159fc2613157d81be03eba0 |
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