Malicious PDF — malware analysis report

Static analysis result for SHA-256 0441f1275162958b…

MALICIOUS

PDF

53.9 KB Created: 2021-05-10 14:01:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 01a33b39c492e8722cf95efa3fcc7c69 SHA-1: a7a022a227d1d005eacb19265fc85b24b5834bf6 SHA-256: 0441f1275162958b69f7cd8df90707bfa3b5b1056d41c4f53ce88e951ee44e7d
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, directing users to various compromised websites and potentially malicious URLs, such as 'https://drafthe.ru/uplcv?utm_term=ngk+1080p+video+songs'. The document's structure and embedded links suggest it is designed to trick users into visiting these sites, likely for malware distribution or phishing purposes.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9389

Heuristics 5

  • 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.
  • 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://drafthe.ru/uplcv?utm_term=ngk+1080p+video+songs PDF link annotation
    • http://altelaw.com/uploads/image/file/matexutawuwe.pdfIn PDF document text
    • https://414movement.com/wp-content/plugins/super-forms/uploads/php/files/e96a37c197e56f8ab25c2766a6590195/86297380558.pdfIn PDF document text
    • https://www.sacproblemleri.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071d61a21c02---ratalof.pdfIn PDF document text
    • https://www.budgetskemaet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/16085cddbd0e97---bipumugez.pdfIn PDF document text
    • https://xn--i1aam8cb.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/b4b106870fc80dcd6f9a9aa2f9d35909/vigosijesakikisa.pdfIn PDF document text
    • http://drinkandshrink.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1607741b6e1da0---70088242850.pdfIn PDF document text
    • http://tuzvedo.hu/elemek/file/71270449820.pdfIn PDF document text
    • http://www.marcelasemper.com/wp-content/plugins/formcraft/file-upload/server/content/files/160789331134b0---fezusilezexeveb.pdfIn PDF document text
    • https://primeodontorj.com/wp-content/plugins/super-forms/uploads/php/files/0348cc0e79fff2673a82fb4d86e50bef/75782250187.pdfIn PDF document text
    • https://www.inter-tube.co.uk/wp-content/plugins/super-forms/uploads/php/files/4bcd3f9157c47c94d4c893f7a59fc051/49277662116.pdfIn PDF document text
    • https://emergent-partners.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608506ecc510c---vawukelowu.pdfIn PDF document text
    • http://www.deadclan.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1608f747e01b93---89661751045.pdfIn PDF document text
    • http://arslanemlak.come/file/67792501316.pdfIn PDF document text
    • https://gulertrafik.com/wp-content/plugins/super-forms/uploads/php/files/oto7s7e29iinoa4r0fadd2to5u/17958973474.pdfIn PDF document text
    • http://atek-ent.com/upload/file/93329056760.pdfIn PDF document text

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