MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV specifically identifying it as a phishing trojan. It contains numerous links to external websites, many of which appear to be hosted on compromised WordPress installations, suggesting a phishing or malware distribution campaign. The presence of embedded URLs and link farms indicates an attempt to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.7974
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://chcial.ru/uplcv?utm_term=programme+biathlon+le+grand+bornand+2020 PDF link annotation
- https://evocative.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1606f82f775a2e---75520641492.pdfIn PDF document text
- https://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/161052e01830a8---fidebuzuja.pdfIn PDF document text
- http://principessavencanice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608c225219a16---vofofumuvolufufenedev.pdfIn PDF document text
- https://cullinanconstruction.com/wp-content/plugins/super-forms/uploads/php/files/8c6c3jbogbed927b5ughg0j7sf/kifemukemimitan.pdfIn PDF document text
- http://www.mostenpo.jp/userfiles/files/27844064988.pdfIn PDF document text
- https://comobrew.com/newsite/images/user_uploads/file/6309836245.pdfIn PDF document text
- http://aifamilyreunion.com/clients/59202/File/59711037698.pdfIn PDF document text
- http://www.ibadirect.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f4ada351a2---tuwajalagelaluk.pdfIn PDF document text
- https://criteriacambio.com.br/wp-content/plugins/super-forms/uploads/php/files/1abrbv84dbd138vip57ntmhjko/sumamozezuwikanixi.pdfIn PDF document text
- http://thanhlamresort.vn/wp-content/plugins/formcraft/file-upload/server/content/files/160dc0f12bc76e---xewamogoripevov.pdfIn PDF document text
- http://aozbt.com/clients/3/33/335f642cf73e2ad82edc7dd4a76dad4e/File/bolam.pdfIn PDF document text
- https://neavocats.com/wp-content/plugins/super-forms/uploads/php/files/b9703674c0601de47d61c5bc36a6cfec/14843422914.pdfIn PDF document text
- https://www.sanier.pl/wp-content/plugins/super-forms/uploads/php/files/55k40apmh3bn5rlod6ceupobvc/48402694460.pdfIn PDF document text
- https://414movement.com/wp-content/plugins/super-forms/uploads/php/files/0f153e2901af26a61b000ad4f02c2099/86022201912.pdfIn PDF document text
- http://hillcresthigh1971.com/clients/9/9f/9fbf9047a6869172a982db6f42f05a9a/File/logetil.pdfIn PDF document text
- https://pestresolution.pt/site/upload/file/2219882813.pdfIn PDF document text
- http://ahlhy.com/uploads/file/151104436916.pdfIn PDF document text
- http://remontnoedelo.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160a5902507702---silekeviwonovev.pdfIn PDF document text
- http://thanhtindesign.vn/uploads/image/files/vuboragorez.pdfIn PDF document text
- https://drivetripper.com/userfiles2020/files/nukukawititonog.pdfIn PDF document text
- http://moveisgarciadigital.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160e903cc94c09---papulubalaranebevu.pdfIn PDF document text
- http://antifftech.com/uploadfile/file///2021070613183895.pdfIn PDF document text
- http://mas.vacations/wp-content/plugins/formcraft/file-upload/server/content/files/1609a0c0b6ca93---pakadit.pdfIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f3ac.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3AC | 10912 bytes |
SHA-256: 3f70b94c6deeb62a8580f0d6b355696b2d68183429d0c130f08a1eadce96917e |
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font_01_sfnt_off00010c84.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C84 | 19752 bytes |
SHA-256: 64b871404e8284902e1755b00a624d79621cf69c068a31f207c29676364485d3 |
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