Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a86f14ef740ae3b…

MALICIOUS

PDF

101.2 KB Created: 2021-06-25 06:23:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: a512cc2a50789993e417b06418b825a1 SHA-1: 16a815085dd9dc222d6c2230d80355cbdce661f7 SHA-256: 1a86f14ef740ae3b31eb1c495e6118a8f8cac7425b878734d2137d88d343deb2
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as a phishing trojan by ClamAV. It contains a link farm pointing to multiple compromised WordPress upload directories, suggesting it is used to host and distribute malicious files. The document body references 'Marvel contest of champions mod apk 2020', indicating a lure to attract users to download potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8914

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF 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.
  • 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 http://oneself.pro/wp-content/plugins/formcraft/file-upload/server/content/files/16072d47bb3574---71038857385.pdf In PDF document text
    • https://thejinglelab.com/wp-content/plugins/super-forms/uploads/php/files/tcsprbdevr14sm2mlqi4b47acj/lewebatuxuxuve.pdfIn PDF document text
    • http://wypelnienia.kratex.pl/wp-content/plugins/super-forms/uploads/php/files/2dc6369bdf607725f22861ea1330a1df/8840875260.pdfIn PDF document text
    • http://www.danvillern.com/wp-content/plugins/super-forms/uploads/php/files/gitqc6au14hobv0udsvou56vh7/67313287947.pdfIn PDF document text
    • https://lllk.ru/wp-content/plugins/super-forms/uploads/php/files/17f5cba2ce15a8fa0acfac222dfdc550/joloz.pdfIn PDF document text
    • http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/16071a6c85d8d5---raperaxokokap.pdfIn PDF document text
    • http://adaviestransportltd.com/userfiles/file/48868171954.pdfIn PDF document text
    • https://worldkelo.com/wp-content/plugins/super-forms/uploads/php/files/fcdebae7c6d3f47d6e4edb1c4e1ea295/96911962069.pdfIn PDF document text
    • http://www.qookspot.kitchen/wp-content/plugins/formcraft/file-upload/server/content/files/160781e5fed576---2862845631.pdfIn PDF document text
    • https://voolabs.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cd5d3ea125---talenix.pdfIn PDF document text
    • http://lilit-realty.com/wp-content/plugins/super-forms/uploads/php/files/m79usuhkf1kj92aa7s6loapc71/kusaxuvotujodevedimerome.pdfIn PDF document text
    • https://signika.pl/Upload/file/17848081591.pdfIn PDF document text
    • http://www.alfainstal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160b375557248e---nabajunububemajir.pdfIn PDF document text
    • http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/0afarmerc3bkeqgjvbv36vlub1/sujavamiwaxolegidujovo.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=marvel+contest+of+champions+mod+apk+2020PDF link annotation

Related samples 8

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