Malicious PDF — malware analysis report

Static analysis result for SHA-256 11bb2f8e8ad8f484…

MALICIOUS

PDF

15.6 KB Created: 2020-10-26 15:31:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 567a44feffbf58fe11b63ab19ee565c4 SHA-1: 2ad9054f228a28102d907bc7f1f2454bdbb523fb SHA-256: 11bb2f8e8ad8f484d31e1ea7335687c464ef3041d4f2bc496b325d2b238f62ad
202 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document functions as a screenshot lure, presenting an image to deceive the user into clicking a link. The primary link redirects through known malicious infrastructure, specifically 'cctraff.ru', which is designed to lead users to a link farm hosted on disposable domains. This pattern suggests an attempt to distribute malware or conduct phishing by leveraging a large number of external PDF links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9973

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 15 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://cctraff.ru/aws?keyword=appsc+group+1+syllabus+2016+pdf In PDF document text
    • https://bavejojonosepes.weebly.com/uploads/1/3/1/3/131380601/xeposo.pdfIn PDF document text
    • https://rebabamebuno.weebly.com/uploads/1/3/4/3/134355200/55d64c288c8b0b7.pdfIn PDF document text
    • https://sepikupi.weebly.com/uploads/1/3/0/7/130738949/xexiwakadep.pdfIn PDF document text
    • https://zinikedefi.weebly.com/uploads/1/3/0/7/130740178/vosimu-redibelefavepu-nufid-tixugikigupiv.pdfIn PDF document text
    • https://givifajilodox.weebly.com/uploads/1/3/0/8/130874655/96a325964f37b.pdfIn PDF document text
    • https://papokerudinex.weebly.com/uploads/1/3/4/3/134310480/digakev_fadeniraxa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cce7f850-45ec-43ed-aed9-969fedd69be7/10141155025.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3f0085fe-abd6-4c2f-8a8c-b9c602879ab0/siwadeko.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/993d1c76-ce0d-4aee-87bb-262c55a9e528/kapuzipagomivuxuteleson.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d2c37df4-e694-48f0-8d7a-345965fe7468/dalebagukexu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ad28a832-09fc-4fc6-9300-55cbaab5daee/dodup.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f4337588-6b6e-4862-85c7-56c69fbf2bba/puxegijaripavopilo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8999/2605/files/57343774191.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/5849/0275/files/40738668173.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0460/6951/4404/files/hitachi_c8fb2_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/06734211-6a90-4e9d-9b61-7e8b4ab0b376/15828899814.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0a5922ff-9db5-4e55-a359-2353973018e7/borogubu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9c00f3b6-6481-4752-a684-778e1aa4e208/retedu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7f1f4fb7-5345-4bcc-bc14-7a6c4b115223/40493411012.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3e6c9d2b-6f8d-4d18-98dc-72ae10cfb6e0/46417582092.pdfIn PDF document text

Related samples 8

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