MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating it is likely a phishing or malware distribution attempt. It contains numerous embedded URLs, many of which point to potentially compromised websites or disposable hosting, suggesting a link farm designed to redirect users. The presence of PDF-specific heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' further supports this conclusion.
Machine Learning
- Nyx PDF Classifier malicious score 0.6412
Heuristics 5
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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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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://tsolisp.com/files/file/2807928240.pdf In PDF document text
- http://x-mobio.com/upload/files/9107381038.pdfIn PDF document text
- https://highfieldhousehotel.net/nbloom/fckuploads/file/jisavoxivazekakok.pdfIn PDF document text
- https://ddshower.com/ckfinder/userfiles/files/42703356925.pdfIn PDF document text
- http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/e374vnd6q1837sj8ilc2sfk6g2/66926139999.pdfIn PDF document text
- http://lalitas-thaimassage-spa.de/wp-content/plugins/formcraft/file-upload/server/content/files/1616a22df3778e---fokibajuxebix.pdfIn PDF document text
- https://www.lavishlook.se/wp-content/plugins/super-forms/uploads/php/files/b4794120b119f07afecbbf06763209f6/levezebif.pdfIn PDF document text
- https://genesisbehaviorcenter.com/wp-content/plugins/super-forms/uploads/php/files/cc5bbe0adafbb639ef44b8d9d7b70530/83012257359.pdfIn PDF document text
- https://mimpishiosatu.com/contents/files/zalujaguzatesuwuvapapem.pdfIn PDF document text
- http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/u4n6sst49c6ehr5ev17qpvs5d5/rituvugoloxisisif.pdfIn PDF document text
- https://chiataiec.com/userfiles/Proj_Name/files/60713865949.pdfIn PDF document text
- http://bilafafafa.com/shopadmin/upload/files/varajudanev.pdfIn PDF document text
- http://www.anclupnapoli.it/userfiles/file/salesunimojumuxop.pdfIn PDF document text
- http://www.oe.com.tw/ezadmin/ckfinder/userfiles/files/36489942670.pdfIn PDF document text
- http://somsit.com/ckfinder/userfiles/files/menovedewutebuwimokiw.pdfIn PDF document text
- http://www.skupp.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1616bb98778786---wepatuwivazaxeka.pdfIn PDF document text
- http://chaodontuonglai.vn/uploads/ck_upload/files/miwuniguwemowabeduxatikar.pdfIn PDF document text
- http://www.eau-msu.ru/ckfinder/userfiles/files/futimudot.pdfIn PDF document text
- http://adacu.org/userfiles/file/20210903101829.pdfIn PDF document text
- https://www.antoniopopolizio.it/ckfinder/userfiles/files/nofuvevafidilakivatet.pdfIn PDF document text
- http://topenglish.sk/app/webroot/gallery/files/ruzusesezurunexidetenepal.pdfIn PDF document text
- https://adurucui.com/ckfinder/files/67826515144.pdfIn PDF document text
- http://www.medicalalliedtraining.com/wp-content/plugins/formcraft/file-upload/server/content/files/161639c2627caf---vodadovukowakub.pdfIn PDF document text
- http://kfnmdg.com/upfolder/e/files/20210919222433.pdfIn PDF document text
- http://komodovo.ru/upload_picture/pavos.pdfIn PDF document text
- https://feedproxy.google.com/~r/Gsjc/~3/7xhmvLXWVJc/uplcv?utm_term=dna+replication+answersPDF link annotation
- 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_off0000d338.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD338 | 16876 bytes |
SHA-256: b776b3810516d693b99eb144896c85edc380c2d6b66abd9c31ab0e26081645ca |
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