Malicious PDF — malware analysis report

Static analysis result for SHA-256 e63bc69ce8fe7fce…

MALICIOUS

PDF

15.6 KB Created: 2020-11-07 07:23:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f474dc02e1a12e6de14985325024b7c7 SHA-1: 29e8d9f4805b6331d7bc0c36bd32930f9e1aa1a7 SHA-256: e63bc69ce8fe7fce0ac8b0a00039aa96fda231bdfdf3960b27f78e68501e566e
172 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF is an image-only lure, typical of phishing campaigns, designed to trick users into clicking a link. The embedded link, https://gettraff.ru/aws?keyword=cultural+diversity+in+health+and+illness+pdf, is identified as a malicious redirector. The document also contains a large number of links to other PDFs, suggesting a link farm for SEO manipulation or to host further malicious content. While no scripts were explicitly extracted, the nature of the redirector and the link farm indicates a likely intent to download and execute a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

Heuristics 4

  • 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.
  • 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/aws?keyword=cultural+diversity+in+health+and+illness+pdf
    • https://dolenukiwiwe.files.wordpress.com/2020/11/gozetufuludiwukexe.pdf
    • https://pufewureda.files.wordpress.com/2020/11/fimasu.pdf
    • https://zojemadej.files.wordpress.com/2020/11/73587489466.pdf
    • https://uploads.strikinglycdn.com/files/05ab6dcc-e27f-4534-9c47-a19b7b742950/731185261.pdf
    • https://uploads.strikinglycdn.com/files/672f4ce0-ddb8-4010-8b8c-bfa8c8035467/28592321811.pdf
    • https://uploads.strikinglycdn.com/files/cdc38688-0c45-448d-93d3-3fefa15a44b6/6642825244.pdf
    • https://fidunonip.files.wordpress.com/2020/11/madelizopididam.pdf
    • https://uploads.strikinglycdn.com/files/00d5d828-39a0-47b0-849b-8ed9e755e578/ziwokefep.pdf
    • https://uploads.strikinglycdn.com/files/9ed957b1-2b93-4499-9f14-59c0f721e3bf/ingenieria_de_manufactura.pdf
    • https://uploads.strikinglycdn.com/files/2efb3fe7-1906-4ede-8925-52b4a91b8851/83828928864.pdf
    • https://dojofenuf.files.wordpress.com/2020/11/xixeludeposixalitikada.pdf
    • https://s3.amazonaws.com/wixanarer/xolifuxuxowowaxugiwedate.pdf
    • https://uploads.strikinglycdn.com/files/02da0ddb-daf5-4a0e-b325-b8ebea3d604b/sijetik.pdf
    • https://uploads.strikinglycdn.com/files/36cc6b01-316a-454d-a586-38a4c3f27f66/90661826479.pdf

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