Malicious PDF — malware analysis report

Static analysis result for SHA-256 4a0613a633b2e68f…

MALICIOUS

PDF

40.8 KB Created: 2021-05-27 19:20:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cef9706a37830089eab5974777ba3b16 SHA-1: 947c62fa2e49b1415a880c9317f037eb398aefc3 SHA-256: 4a0613a633b2e68f25900dad0b6723918b943c6a6b50a6b7c1ace3e74ba0e096
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document is identified as malicious by ClamAV and ML classifiers, exhibiting characteristics of a phishing lure. It contains a single image and minimal text, typical of a screenshot designed to hide clickable links. Multiple URLs embedded within the document point to compromised CMS upload directories, suggesting an attempt to redirect users to malicious content or download further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8087

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 40 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://ipcare.nl/wp-content/plugins/super-forms/uploads/php/files/1gi0v703vusa3n69msqfsem4c9/pubipikamovuxag.pdf
    • https://yourlightingbrand.com/wp-content/plugins/super-forms/uploads/php/files/ad4064382b717261feb8e4713371901b/fuxobe.pdf
    • http://go-trec.com/wp-content/plugins/super-forms/uploads/php/files/r6a8rfr4egc3cvc5u1qdreaq6f/8128747358.pdf
    • https://www.lokalesichtbarkeit.de/wp-content/plugins/super-forms/uploads/php/files/ij2s6gfkhb0616o9cp7u7rgf2f/vazuxizeloxamuvezijuj.pdf
    • https://newat.ru/wp-content/plugins/super-forms/uploads/php/files/517e54a7223a8cac921213143a6a2939/641840297.pdf
    • http://tamlaproject.com/userData/board/file/xotilokosozanom.pdf
    • http://itaindustrial.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607673543dcd1---nitifomijagizukawal.pdf
    • https://suhrsmad.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1609d5620de630---fidupitawegaloziwo.pdf
    • http://longarmquiltacademy.net/fckeditor/userfiles/file/71693004927.pdf
    • http://veronicanealhome.com/wp-content/plugins/formcraft/file-upload/server/content/files/2/160838b703edec---84063918921.pdf
    • http://www.1atlanticfunding.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a992db58130---67635536451.pdf
    • http://www.maoles.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aea7ac085d9---99351267365.pdf
    • http://temple.mo/userfiles/file/ladawileka.pdf
    • http://contentworks.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1606e2193f297d---natewunukipokemoja.pdf
    • http://www.nandomoraes.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160776dbe1b433---zusenobuwubumag.pdf
    • https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=ver+pel%25C3%25ADcula+completa+gratis+de+chin+chin+el+teporocho

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