Malicious PDF — malware analysis report

Static analysis result for SHA-256 4054f0b5c0329fdf…

MALICIOUS

PDF

119.7 KB Created: 2021-01-14 05:52:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 86d4b7ff6c87bc8c25de1be19d3f2850 SHA-1: 3ceb7e82bf935f3584e6040308885afa0615c137 SHA-256: 4054f0b5c0329fdf385454302941b9f9f06bc629d275a40595a30c0845e2e1a8
212 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file is identified as malicious due to its use of a known malicious redirector link and a link farm structure. The document body, though heavily obfuscated, suggests a lure related to 'holy bible kjv online' to disguise the malicious intent. The embedded URLs are designed to lead users to potentially harmful content, aligning with phishing and redirection tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9539

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
  • 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.
  • 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://traffking.ru/aws?utm_term=holy+bible+kjv+online In PDF document text
    • https://cdn-cms.f-static.net/uploads/4380876/normal_5fa0698a37206.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413977/normal_5fe35407dc324.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383321/normal_5f9f6cc531c6b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366623/normal_5f8d2f2a46777.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412378/normal_5f98c1841cdc4.pdfIn PDF document text
    • https://zuxadozi.weebly.com/uploads/1/3/4/6/134662888/5b5fc97c62f.pdfIn PDF document text
    • https://site-1239377.mozfiles.com/files/1239377/vopixasuxajimoderusirira.pdfIn PDF document text
    • https://site-1175088.mozfiles.com/files/1175088/neha_kakkar_punjabi_song_ringtone.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480414/normal_5fbfddee106f1.pdfIn PDF document text
    • https://nisutezobeta.weebly.com/uploads/1/3/4/4/134486685/xokutoxufimuguluwefa.pdfIn PDF document text
    • https://s3.amazonaws.com/lakujusitejojet/cvc_phrases_worksheets_for_kindergarten.pdfIn PDF document text
    • https://s3.amazonaws.com/kibavutibeved/pdf_akuntansi_manajemen.pdfIn PDF document text
    • https://s3.amazonaws.com/kiwopusafize/1138092102.pdfIn PDF document text

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