Malicious PDF — malware analysis report

Static analysis result for SHA-256 946c34652ed6b96c…

MALICIOUS

PDF

54.7 KB Created: 2021-09-20 05:48:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-25
MD5: 9e57c66cd22051882809c4627d098f0c SHA-1: 315ba946c4562a5b2948e8efdba458c9f1c71630 SHA-256: 946c34652ed6b96c132062219d9f3101d42256d535fa07bb662d2c24ba262607
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains numerous embedded URLs and is flagged by heuristics as a link farm on disposable hosting, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection further support its malicious nature. Although no scripts were extracted, the sheer volume of suspicious links suggests an intent to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7871

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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 https://chcial.ru/uplcv?utm_term=sarkar+full+movie+download PDF link annotation
    • http://www.reroofingbrisbaneqld.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161468cd372534---46559585259.pdfIn PDF document text
    • https://koparieshorvathbusz.hu/files/file/42511719503.pdfIn PDF document text
    • https://uzmanwebci.com/calisma2/files/uploads/60948992232.pdfIn PDF document text
    • http://energosol.pl/images_cms/file/xupasodakesubazepagopi.pdfIn PDF document text
    • http://drironcat.com/images/file/nefizivit.pdfIn PDF document text
    • http://decom.pro/admin/ckfinder/userfiles/files/9162124716.pdfIn PDF document text
    • http://aiaato.com/FileData/ckfinder/files/20210920_465630B56B54C557.pdfIn PDF document text
    • http://ricarda-allegra.de/userfiles/file/lavagazisedo.pdfIn PDF document text
    • http://www.tiande-global.com/ckfinder/userfiles/files/pigedavelixeboxuvafikiri.pdfIn PDF document text
    • https://thucphamtruongxanh.com/Upload/files/kodinusasimazujonevejuz.pdfIn PDF document text
    • http://stardentalcare.org/userfiles/file/xenalef.pdfIn PDF document text
    • http://meyergarden.com/ckfinder/userfiles/files/28580659335.pdfIn PDF document text
    • http://sluchatka-shop.cz/files/upload/files/dudusedonujoxebe.pdfIn PDF document text
    • http://burelomdo.com/ckfinder/userfiles/files/90292349699.pdfIn PDF document text
    • https://gancza-yacht.pl/userfiles/file/3935783130.pdfIn PDF document text
    • https://www.reliancecareuk.com/wp-content/plugins/super-forms/uploads/php/files/87c1a6653fc3156c0601656469722f1e/zimob.pdfIn PDF document text
    • http://brezov-gaj.si/uporabnik/file/88775559728.pdfIn PDF document text
    • https://bda.ch/ckfinder/userfiles/files/puzepalalisuvepexidixel.pdfIn PDF document text
    • http://aydinservis.com/ckfinder/userfiles/files/suxawupunasufuxo.pdfIn PDF document text
    • http://conomiya.com/images/uploadedimages/file/sebewosimorezukekulifej.pdfIn PDF document text
    • http://denis-lefebvre-services.com/fichiers/file/2172305775.pdfIn PDF document text