Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e0fe46c4a107cab…

MALICIOUS

PDF

45.6 KB Created: 2021-09-18 14:19:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-31
MD5: 84bb0cddf244c642ebea5b012ad35d88 SHA-1: 7fd37ee08b125379a394e6a74fae2b9005c18d5e SHA-256: 3e0fe46c4a107cab66ea682736d0cea4e6ffda73f45edc6d0514a12d967a9152
132 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains embedded JavaScript, indicating an attempt to execute malicious code. The PDF also hosts a large number of external links, many pointing to disposable domains, suggesting a link farm designed to obscure the true destination. The ClamAV detection and ML classifier further support its malicious nature, likely as a phishing or trojan delivery mechanism.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7740

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One 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 http://kondicionery-noginsk.ru/upload_picture/file/bikigelulemebe.pdf In PDF document text
    • http://olimpic.hu/ckfinder/userfiles/files/dodexeju.pdfIn PDF document text
    • http://fosterfreezesantarosa.com/uploads/files/lokufunuwevudujimaz.pdfIn PDF document text
    • http://rama-sp.com/rama/webroot/js/ckfinder/userfiles/files/rabik.pdfIn PDF document text
    • https://yuvasarkar.org/userfiles/file/70719428051.pdfIn PDF document text
    • http://wasserentkalkung.at/ckfinder/userfiles/files/xolazodexavigofisabep.pdfIn PDF document text
    • https://eetravel.net/file/tomelabonoboxunavejej.pdfIn PDF document text
    • http://afghansolar.com/userfiles/file/17331943154.pdfIn PDF document text
    • https://holocaustresearch.pl/nowy/photo/file/45788305187.pdfIn PDF document text
    • http://rollfactorytogo.com/uploads/files/38688032207.pdfIn PDF document text
    • http://landia-print.com/pdir/file/76248745255.pdfIn PDF document text
    • https://gencerenerji.com/resimler/files/nisas.pdfIn PDF document text
    • https://kisikana.hr/UserFiles/files/86284392317.pdfIn PDF document text
    • http://ivankotov.ru/img/lib/file/fuvok.pdfIn PDF document text
    • https://jamuiboe.com/webroot/upload_media/67131605771.pdfIn PDF document text
    • https://blokhol.com/upload/files/terezirimitani.pdfIn PDF document text
    • http://somsit.com/ckfinder/userfiles/files/maxor.pdfIn PDF document text
    • https://nobleanimalsanctuary.org/wp-content/plugins/super-forms/uploads/php/files/tmp/zimilupenagetonase.pdfIn PDF document text
    • http://xn--80aafkatcapceshpicpg3h.xn--p1ai/pict/file/79373313861.pdfIn PDF document text
    • https://sitycare.com/FCK-UserFiles/files/dasoziraneladol.pdfIn PDF document text
    • http://96stone.ru/userfiles/file/kedumurofaralaw.pdfIn PDF document text
    • https://member-amz-seller-system.de/wp-content/plugins/super-forms/uploads/php/files/e337a2d687d111000c0ba1c7b10f551d/20158058308.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=download+little+nightmares+androidPDF link annotation

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