Malicious PDF — malware analysis report

Static analysis result for SHA-256 57d6f8bceaa5559a…

MALICIOUS

PDF

49.6 KB Created: 2021-01-02 13:12:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: c5d92e57c3b9efdd768f5f7da70bd880 SHA-1: ff7dabf0ffa8bc7a9ca21155314ccd216e5e8b38 SHA-256: 57d6f8bceaa5559ad770e530a5881373e6677998c40fec473bebcf2b2c198d82
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://traffmen.ru/aws?utm_term=linux+shell+scripting+basics+pdf'. This indicates the document's primary purpose is to lure the user to this external resource. While no scripts were explicitly extracted, the PDF structure and the malicious URL strongly suggest an attempt to deliver a payload or phish credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9113

Heuristics 3

  • 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 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.
  • 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://traffmen.ru/aws?utm_term=linux+shell+scripting+basics+pdf In PDF document text
    • https://tevigopodasipa.weebly.com/uploads/1/3/4/6/134678542/luxulu.pdfIn PDF document text
    • https://s3.amazonaws.com/nilititonawafim/36044720764.pdfIn PDF document text
    • https://s3.amazonaws.com/gawabog/amona_tete_wa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9e263a10-5b87-46d1-b8d6-63266968e7cb/29993311536.pdfIn PDF document text

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