MALICIOUS
162
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file identified as malicious by ClamAV and an ML classifier. It contains embedded JavaScript and a significant number of external URIs, many of which point to compromised WordPress sites or disposable hosting, forming a link farm. The presence of JavaScript suggests potential for further malicious actions, such as downloading additional payloads or redirecting users to phishing sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.8980
Heuristics 6
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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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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://catamma.ru/uplcv?utm_term=cuanto+es+100+gramos+de+azucar+blanca+en+tazas PDF link annotation
- http://sinara.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609ba4665f3c9---rotukenenekawixekujaz.pdfIn PDF document text
- http://d-a-s.cn/userfiles/file/kigaxowavinisejifaw.pdfIn PDF document text
- http://ranjitabiswas.com/userfiles/files/kovamogixubakose.pdfIn PDF document text
- https://assignmentmart.com/ckfinder/userfiles/files/tifitudujo.pdfIn PDF document text
- http://gorisum.net/fckeditor/upload_file/file/mebifubaxezuwuf.pdfIn PDF document text
- http://brodart01.com/wp-content/plugins/super-forms/uploads/php/files/ue591gjrtnq0br06mijkr4kfse/finanizojuti.pdfIn PDF document text
- https://defrokatilai.lt/images/files/69757244312.pdfIn PDF document text
- https://99shayari.in/userfiles/files/salovoki.pdfIn PDF document text
- http://zonwering-belgie.com/ckfinder/userfiles/files/69670218259.pdfIn PDF document text
- https://postscriptproductions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160729e44db7aa---66137340474.pdfIn PDF document text
- http://www.phsdcenter.com/temp/js/ckfinder/userfiles/files/fapanogapufuxiwemoxipag.pdfIn PDF document text
- http://www.molinoag.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609719604c0e8---48711781940.pdfIn PDF document text
- https://www.straightmyteeth.eu/wp-content/plugins/super-forms/uploads/php/files/4ac3b8cec0cdd0d6df9959c7bf1d5f2e/ratuxerasurovitikuzawus.pdfIn PDF document text
- http://veribase.com/E/file/63069857355.pdfIn PDF document text
- https://avigailpekelman.com/sites/default/files/file/27353379539.pdfIn PDF document text
- https://attackworkoutprogram.com/app/webroot/files/ckfinder/userfiles/files/8634334323.pdfIn PDF document text
- https://toppelletmachine.com/d/files/3296891528.pdfIn PDF document text
- http://tetraeng.it/userfiles/files/vefodujunipofuzajaso.pdfIn PDF document text
- http://www.danvillern.com/wp-content/plugins/super-forms/uploads/php/files/sp40cti4stjueoe8pmfhn963t0/kuxon.pdfIn PDF document text
- https://sportli.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/1607d8ad9127a4---48516909354.pdfIn PDF document text
- http://www.sunargrup.com.tr/wp-content/plugins/super-forms/uploads/php/files/vrfklp68mj5g6qfhvu9e176s84/xomigakazuwodasarozudim.pdfIn PDF document text
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160afbbe43305a---78757487917.pdfIn PDF document text
- http://lycee-elm.org/userfiles/file/59040759774.pdfIn PDF document text
- https://ahi.com.ua/wp-content/plugins/super-forms/uploads/php/files/c65cf42716320368be3e1fb828fbfeca/73529234019.pdfIn PDF document text
- https://www.psalighting.com/wp-content/plugins/super-forms/uploads/php/files/4443a14ba90a3d91f1c2b4afa820495f/wuwozogitumokameviba.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_off0000da32.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA32 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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