Malicious PDF — malware analysis report

Static analysis result for SHA-256 c9834aa93bb692d8…

MALICIOUS

PDF

66.2 KB Created: 2020-11-13 16:02:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: ebe33cfa3b8e98aae152c133b87f04f1 SHA-1: 64f738a7c01e36da89cc4b8b3385141f8cb1fabd SHA-256: c9834aa93bb692d8bcd2deda869330a30d06d13fc7fd3ec7dee71695282fef8f
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous external links, with a critical heuristic identifying it as a PDF link farm. The primary malicious URL, 'https://trafffe.ru/aws?utm_term=ganesh+atharvashirsha+lyrics', suggests a potential phishing or SEO abuse motive. ClamAV detection as 'Pdf.Phishing.Trojan' further supports its malicious nature, indicating it's likely used to distribute malicious content or redirect users to phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7916

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://trafffe.ru/aws?utm_term=ganesh+atharvashirsha+lyrics PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4417988/normal_5fadeb88043c8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370090/normal_5f8d2aeb6c91c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366652/normal_5f90abe9a4f72.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366048/normal_5f8a8a15d0418.pdfIn PDF document text
    • https://naguxamo.weebly.com/uploads/1/3/4/6/134655503/ruwaruz-wilexud-ninonipotawel-sexokosumufon.pdfIn PDF document text
    • https://s3.amazonaws.com/muvunekagok/10846472120.pdfIn PDF document text
    • https://s3.amazonaws.com/felasorarabipis/xuxufarazo.pdfIn PDF document text
    • https://s3.amazonaws.com/votuweroxigezog/92410728106.pdfIn PDF document text
    • https://s3.amazonaws.com/zuses/83774902818.pdfIn PDF document text
    • https://s3.amazonaws.com/wofaxil/word_whizzle_nobility_answers_places_on_the_web.pdfIn PDF document text
    • https://s3.amazonaws.com/ruzaganog/96673446244.pdfIn PDF document text
    • https://s3.amazonaws.com/perurulexi/wulimukibele.pdfIn PDF document text
    • https://s3.amazonaws.com/ruzumeb/nitapodipovilu.pdfIn PDF document text

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