Malicious PDF — malware analysis report

Static analysis result for SHA-256 c47f68d04b8b1828…

MALICIOUS

PDF

56.2 KB Created: 2020-12-31 19:44:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f2e493a82d860ba7ad722d133739ecd6 SHA-1: 1b354dafcc1fc8f24d52429c9082f36692c96d8a SHA-256: c47f68d04b8b18286fa26004966b0ffe7b4b82833bf91fce8721ca575d872605
212 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file was identified as malicious by multiple heuristics, including a critical alert for linking to known malicious redirector infrastructure. The document contains a large number of embedded links, many of which point to PDF files hosted on various platforms, suggesting a link farm or redirection scheme. The primary malicious URL identified is 'https://gettraff.ru/strik?utm_term=smart+pulse+survey+5.+6+version+download', which likely serves as a gateway to further malicious content or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9433

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://gettraff.ru/strik?utm_term=smart+pulse+survey+5.+6+version+download
    • https://cdn-cms.f-static.net/uploads/4366321/normal_5fdc02d28ae77.pdf
    • https://static.s123-cdn-static.com/uploads/4419003/normal_5fdf32e02a2ca.pdf
    • https://bidoruwo.weebly.com/uploads/1/3/4/6/134651737/686ed2894.pdf
    • https://cdn-cms.f-static.net/uploads/4388169/normal_5fe8933782011.pdf
    • https://pufukowog.weebly.com/uploads/1/3/4/5/134583281/1581112.pdf
    • https://dowazulipogopu.weebly.com/uploads/1/3/4/3/134322731/zivubajobozuw.pdf
    • https://cdn-cms.f-static.net/uploads/4383802/normal_5f8e1cd155dab.pdf
    • https://zegoliro.weebly.com/uploads/1/3/2/3/132303320/jazimapat.pdf
    • https://cdn.sqhk.co/nasonamav/SK7WMQp/gisasoveto.pdf
    • https://resivoviwogo.weebly.com/uploads/1/3/3/9/133987135/vavilopepemafafedazu.pdf
    • https://static.s123-cdn-static.com/uploads/4428334/normal_5fe4e5debaadc.pdf
    • https://cdn-cms.f-static.net/uploads/4483361/normal_5fd1c423c33f7.pdf
    • https://cdn-cms.f-static.net/uploads/4375196/normal_5fc163ffee13b.pdf
    • https://wudowured.weebly.com/uploads/1/3/0/8/130873715/5573755.pdf
    • https://kiseridebajesa.weebly.com/uploads/1/3/1/4/131408791/c0d19930f758.pdf

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