Malicious PDF — malware analysis report

Static analysis result for SHA-256 05c3d8246837a600…

MALICIOUS

PDF

48.0 KB Created: 2021-08-16 12:42:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: faea0443c02ab6f302faf4618e338ec5 SHA-1: 638cc5de63d8b28069f9be6684572215ef465198 SHA-256: 05c3d8246837a600eea22685da3dc7d15a1e2b0560e1e774a968e1ef7073f055
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file exhibits characteristics of a phishing lure, including being image-heavy with minimal text and containing numerous external links. Several heuristics indicate it's part of a link farm hosted on potentially compromised CMS uploads. While no scripts were explicitly extracted, the PDF structure and link farm behavior suggest an attempt to redirect users to malicious content, likely for credential harvesting or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8568

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 48 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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 https://apartmani-mestrovic-krk.hr/files/87264419905.pdf
    • http://actionelectric.pt/www/wp-content/plugins/formcraft/file-upload/server/content/files/1608785cbd1cc4---57074795775.pdf
    • https://dezsredstvompx.ru/wp-content/plugins/super-forms/uploads/php/files/430b1af4507a54423403b6c3e285af0e/5116974985.pdf
    • https://biocoils.com/img/file/sasovumokebojemad.pdf
    • https://protradingindia.net/userfiles/file/jawomutirubejop.pdf
    • http://nacyc.jp/Upload/file/89071991887.pdf
    • https://fleuriste79.fr/ckfinder/userfiles/files/82652923279.pdf
    • https://shidoremicrosys.com/media/85018884378.pdf
    • https://beaufortbond.com/wp-content/plugins/super-forms/uploads/php/files/9e1c5fdae92248fdb4d4392ce8b4ed51/saguvinokobiwuwuwufima.pdf
    • https://traveltokiev.com/wp-content/plugins/super-forms/uploads/php/files/8db4pj6iuppp7v1oui77kbar41/finukaz.pdf
    • http://brianhaymore.com/images/e/file/niterusugixemakus.pdf
    • https://www.corpeverest.com/ckfinder/userfiles/files/wapaxarogarek.pdf
    • https://www.areatransfers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607450051b714---86713740072.pdf
    • http://bertoniamministrazione.it/bertoni/public/file/34302593926.pdf
    • http://www.1atlanticfunding.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087a6ce519f2---kikalefofamip.pdf
    • https://edoxmarketing.com/wp-content/plugins/super-forms/uploads/php/files/u1pgh4pi6acrcbchm30ju0nu3n/bifoj.pdf
    • http://lamekatus.ee/uploads/ckeditor/files/74722115450.pdf
    • http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160884885ae840---winezuxuvobazavopija.pdf
    • http://bindashnews.com/userfiles/file/senevujibosarekesujofutir.pdf
    • http://utuin.net/files/fckeditor/file/wogafogijazi.pdf
    • http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b11b6f0daee---womugilugodakinuduso.pdf
    • http://i-harmonics.com/upload/files/gumifenefojageto.pdf
    • http://thunderstar.cn/userfiles/file/20210522115045253957767.pdf
    • http://yaqeen-eg.com/userfiles/file/75641655349.pdf
    • https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=aiou+date+sheet+ba+spring+2019

Open this report in the interactive analyzer, or submit your own file for analysis.