Malicious PDF — malware analysis report

Static analysis result for SHA-256 738d3e1605d1e55b…

MALICIOUS

PDF

16.0 KB Created: 2020-10-26 08:23:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8a2273a96d2cf84ee96116c2bfdf6f51 SHA-1: c009938dd757100ccfaea54ed1b93767a980080e SHA-256: 738d3e1605d1e55b7470f1cd77e9f713d7eed695ece2f7a8852106ca8f42da20
202 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document is designed as a phishing lure, using a title related to accounting to entice users. It contains numerous links to external sites, including a known malicious redirector at `https://gettraff.ru/strik?keyword=partes+de+un+balance+general+contabilidad`. The document's structure and content strongly suggest it is part of a link farm intended to drive traffic to malicious infrastructure, likely for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9981

Heuristics 5

  • 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.
  • 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 16 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://gettraff.ru/strik?keyword=partes+de+un+balance+general+contabilidad In PDF document text
    • https://xapawijumoj.weebly.com/uploads/1/3/1/3/131379373/048d16cb4.pdfIn PDF document text
    • https://zalopajozi.weebly.com/uploads/1/3/1/4/131453352/bazagudaw.pdfIn PDF document text
    • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/10610.pdfIn PDF document text
    • https://wibugosavuzatug.weebly.com/uploads/1/3/4/3/134349607/aa401394f8ab.pdfIn PDF document text
    • https://nulixedupalaz.weebly.com/uploads/1/3/0/7/130739510/d71767245d03.pdfIn PDF document text
    • https://bopiwode.weebly.com/uploads/1/3/4/3/134367631/e8551f0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365551/normal_5f886fce80d89.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393036/normal_5f925b663a019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/5042/1410/files/46217520358.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1731/2152/files/18431735210.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/5901/8408/files/perimeter_of_a_half_circle.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/5295/7335/files/seedfolks_study_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/228fd167-6771-4964-bb44-865f9704890c/30295924398.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c6b4b48e-fdb3-4005-9934-47cf3e281a4b/33476202181.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/54a6abb5-278d-44dc-9d83-f261654d9584/gorejogi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/9205/9323/files/wow_wotlk_leveling_guide_1-80.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2410/5115/files/ammyy_admin_download_for_android.pdfIn PDF document text

Related samples 8

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