MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is identified as a malicious PDF by ClamAV and an ML classifier. It contains numerous external URLs, many hosted on compromised or disposable domains, suggesting a link farm or redirection mechanism. The presence of PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics indicates a tactic to distribute malicious content or phish users through seemingly legitimate but compromised websites. No scripts were extracted, but the PDF structure itself facilitates the redirection.
Machine Learning
- Nyx PDF Classifier malicious score 0.5479
Heuristics 5
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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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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://oniceh.ru/uplcv?utm_term=bus+duct+installation+manual PDF link annotation
- http://akvari-um.ru/userfiles/file/36267107999.pdfIn PDF document text
- https://marjoyunlar.com/calisma2/files/uploads/75589461307.pdfIn PDF document text
- http://lawcab.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1615db0bace096---91403470661.pdfIn PDF document text
- http://speednewslive24.com/assets/ckfinder/core/connector/php/uploads/files/29142643680.pdfIn PDF document text
- http://woodlandhills.ilovepokebar.com/uploads/files/dukuxetekexiru.pdfIn PDF document text
- http://smarttechsolutionukltd.com/uploaded_files/userfiles/files/44757549619.pdfIn PDF document text
- http://hublihorse.com/uploads/userfiles/files/43581473985.pdfIn PDF document text
- https://ceadersvalet.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615c4ec638a28---vojakuwepekoxapop.pdfIn PDF document text
- http://sirmamedia.com/ckfinder/userfiles/files/22720717483.pdfIn PDF document text
- http://czyxchem.com/upload/files/4551132682.pdfIn PDF document text
- http://anhhieu.vn/hinhanh/file/weviz.pdfIn PDF document text
- https://togelunited4d.com/contents/files/96308767664.pdfIn PDF document text
- http://szybkieprawko.pl/szybkieprawko.pl/user/admin/fck/file/babiwiw.pdfIn PDF document text
- http://cpgny.com/userfiles/files/27242489355.pdfIn PDF document text
- https://styliststudios.com/imagesTE/file/19823986548.pdfIn PDF document text
- https://mediabandit.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612efd1c97f16---kiforizuwe.pdfIn PDF document text
- http://banquat.com/userfiles/files/45819845378.pdfIn PDF document text
- http://tinhdauvietnam.vn/upload/files/tobaravediwolodavon.pdfIn PDF document text
- http://hhsmelt.com/upload/files/momafejowepetowox.pdfIn PDF document text
- https://congtydaihai.com/upload/files/sovuxep.pdfIn PDF document text
- https://braveathlete.net/geektic/files/bubolidutojufexiwimexa.pdfIn PDF document text
- https://legacydockandmarine.com/wp-content/plugins/super-forms/uploads/php/files/673fe45a67f023276fc75957a7297f94/7010109282.pdfIn PDF document text
- http://phuwangnam.com/user_file/file/72228599724.pdfIn PDF document text
- https://www.hotel-palladium.gr/wp-content/plugins/super-forms/uploads/php/files/o37kvhrcq847k62bgd9j41t8pj/semoxitopojo.pdfIn PDF document text
- http://shamayachts.com/upload/file/42387658676.pdfIn PDF document text
- https://rt9.rspo.org/ckfinder/userfiles/files/zodamapumelediwuvewavejiz.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_off0000c824.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC824 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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