Malicious PDF — malware analysis report

Static analysis result for SHA-256 679daf73591048da…

MALICIOUS

PDF

10.9 KB Created: 2020-10-04 15:34:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: b852f9644aceb9617a4dd926ac3a47d1 SHA-1: 183561ecad78aea25ca7d5b3e51c55559c1143f9 SHA-256: 679daf73591048dae44451c4c934ad292716506b9fa5b9827cdf274b01614197
112 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and uses an image-based lure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9921

Heuristics 3

  • 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.
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 10 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://cctraff.ru/strik?keyword=tapping+technique+guitar+pdf In PDF document text
    • https://uploads.strikinglycdn.com/files/2236b6ec-ec96-4691-bcd8-0c28422340f3/fijiredagadabir.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6b106259-536e-43a5-b322-b6d56e583e20/12592918959.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f2ad2205-b146-45f2-9c3a-e750cabef5f6/14647096152.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/480b4760-becd-4c94-956d-4cec708f8aa2/48963566434.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8935/4142/files/snapchat_filter_png_size.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0495/4941/0456/files/37034215294.pdfIn PDF document text

Related samples 6

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