Malicious PDF — malware analysis report

Static analysis result for SHA-256 d700e4ed9846974f…

MALICIOUS

PDF

44.9 KB Created: 2020-11-02 21:51:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 0c0bcec3c4dafeafbb9dd8223c67fe55 SHA-1: d709fec03e7f625c401d1e8773a9f6e2af7ab584 SHA-256: d700e4ed9846974f9fea5a0c540765164b57f34c629caa96b09feaf3cfe1650f
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains a link to a known malicious redirector infrastructure, disguised as a product manual. The ML classifier strongly indicates maliciousness. The embedded URL is likely intended to lead the user to a phishing or malware download site.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=greenworks+pressure+washer+1600+psi+manual In PDF document text
    • https://cdn-cms.f-static.net/uploads/4370302/normal_5f8bb444340c2.pdfIn PDF document text
    • https://pojetepanale.weebly.com/uploads/1/3/4/3/134361345/gimesuvez-rofafewin-jovafaso.pdfIn PDF document text
    • https://farupixin.weebly.com/uploads/1/3/4/3/134314126/jubexiveluzafoj-ditoni.pdfIn PDF document text
    • https://rokozozo.weebly.com/uploads/1/3/4/4/134498035/6923889.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/20b023ff-0596-4d93-8ff7-317cdfd07264/zatimilifusejegexopezowij.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a2d3fd12-5b13-469b-9c62-8997a88d1653/bives.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5c6bc23d-bbbc-4385-9034-23fdca4c112f/42223491808.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b310183d-65e1-4eca-aa80-e65575485d25/xugizagutotanizeto.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a1376171-dbcf-4803-b31e-315a2d08b726/85619560867.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/83c9f392-09c6-4132-8e01-4764a031d602/penevin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0233/9232/files/fundamentals_of_management_robbins.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006f49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F49 5596 bytes
SHA-256: 9c61d2c0c471a601cde952b6758aab6af62d6eb2c5e04178e80f531142a5c7d7
font_01_sfnt_off0000823a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x823A 10748 bytes
SHA-256: da28f30e3c7f3ddada5287c28cf47dd719b92acbbe448781eb44d1a43f28ba27