Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d0410e82388ca16…

MALICIOUS

PDF

978.7 KB Created: 2021-06-13 23:49:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 7c87008e9875458500d514d01d056cdb SHA-1: f78451cfbaf9fb92e7bfad0f1b7aa7dade51e8d7 SHA-256: 1d0410e82388ca16478d88cc1d410f299a67dbb03a710fb983bc30ba16d8a4b9
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains numerous embedded links, many of which point to compromised WordPress sites or unknown domains, indicating a phishing or malware distribution attempt. The ClamAV heuristic specifically flags this as a phishing trojan. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the heuristics suggest an attempt to redirect the user to malicious content.

Machine Learning

  • Nyx PDF Classifier clean score 0.0402

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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://crewmak.ru/uplcv?utm_term=amoeba+sisters+video+recap+osmosis+answer+key+pdf PDF link annotation
    • https://tcufroghouses.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f075ee2038---60239309090.pdfIn PDF document text
    • http://kirks-pool.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082ee3d60591---zowuvimibijasarobe.pdfIn PDF document text
    • http://novaserv.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078868f8a3ec---xunonun.pdfIn PDF document text
    • http://ajtoablakcentrum.com/_user/file/jemekukuvubetanali.pdfIn PDF document text
    • http://absigorta.come/file/xigubifidam.pdfIn PDF document text
    • https://tectrongim.com/uploads/files/79554665223.pdfIn PDF document text
    • http://china-zub.ru/userfiles/file/vifogo.pdfIn PDF document text
    • http://slowjamsundays.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609eb16c3cf58---vojikawa.pdfIn PDF document text
    • https://spazmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/16097a4dc20ba0---96380678143.pdfIn PDF document text
    • https://alphacleanwashing.com/wp-content/plugins/super-forms/uploads/php/files/e66bbcbfa380964a86853820bf9f1374/98031767224.pdfIn PDF document text
    • http://africanhairbraidingsalon.com/userfiles/file/32612599156.pdfIn PDF document text
    • http://visualpaint.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078d7636b24b---37543297847.pdfIn PDF document text
    • http://ednak.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c546faf2f44---82205935273.pdfIn PDF document text
    • https://manuscripthandler.com/userfiles/file/45448766484.pdfIn PDF document text
    • https://www.hontoys.com.au/wp-content/plugins/super-forms/uploads/php/files/770d73uvmr1ckacn9nkdftdvm0/37522181731.pdfIn PDF document text
    • http://drstevealbrecht.com/wp-content/plugins/super-forms/uploads/php/files/05837d9282933d6d10b7d4018b3d46e2/11934664811.pdfIn PDF document text
    • http://www.stockholmswingallstars.com/wp-content/plugins/formcraft/file-upload/server/content/files/160949b7e9267c---duxesadisanilub.pdfIn PDF document text
    • http://pivotal-technologies.com/userfiles/file/82960155806.pdfIn PDF document text

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