Malicious PDF — malware analysis report

Static analysis result for SHA-256 22442f5a4fb7db8d…

MALICIOUS

PDF

91.7 KB Created: 2020-12-31 19:17:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 012203a450876ef12dc4432616f65499 SHA-1: 9128affe4fbe09336085924225bf5c9ad8d00f29 SHA-256: 22442f5a4fb7db8db893876ff41bf56167343e026ef07c48458006562bf4ecee
212 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by multiple heuristics as malicious, including a redirector link and a link farm. The embedded URL points to a known malicious redirector, likely intended to lead users to phishing or malware download sites. The presence of numerous external links suggests an attempt to obscure the true destination or to leverage SEO tactics for distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9672

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://traffmen.ru/strik?utm_term=angry+birds+transformers+wikia In PDF document text
    • https://cdn-cms.f-static.net/uploads/4418184/normal_5f95952986a5b.pdfIn PDF document text
    • https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/1696278.pdfIn PDF document text
    • https://zotizoju.weebly.com/uploads/1/3/5/3/135349435/nuzoso.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e12e59a7-e8f8-4e7f-866e-7926a8b637cf/soft_drinks_that_start_with_k.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6ab70de8-2930-4a15-8a9c-fdc9daf738d8/free_coin_master_spin_hunters_app_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1372236b-d836-4e7a-ad7a-88920512ffd8/nitiwipugevebibixiju.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/df9a91fa-4ad6-4033-891d-1770f3585da4/the_kane_chronicles_book_2.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2b66576e-9b55-4fb8-9ce1-45fe52533eb4/87578174510.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/733c91ef-7839-43b7-b84c-8fd7ce8f41c1/95638694794.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5d401acf-5528-4818-8f0f-4cae96bd8101/fowitevaruwanobetof.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/863a9fae-d8c9-426e-96be-36a5646b0374/bakiweroj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1cccc332-ad30-4bb4-b2b8-09e2e7dbffad/edm_die_sinker_machine_report.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7f0ade6f-f15b-4e50-b28f-0ce47d865053/gumofubafesunubaziteladax.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6d20fd9d-4a81-4fd0-b5f6-fd9ce4f923ab/composite_to_vga_adapter.pdfIn PDF document text

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