Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e681e4056a68273…

MALICIOUS

PDF

43.9 KB Created: 2020-10-26 21:50:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 5968a1fe8f5bf003800cbee0c580124c SHA-1: 11695c1bfb2fc2033c7437f43f5d47ef413f5c40 SHA-256: 0e681e4056a682734f48d0c49a2a3106762e3c92b3ed318f6891cc5cbca0f122
94 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

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://ttraff.link/123?keyword=what+is+risk+identification+and+assessment In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/dinigugaxej/aw_tozer_attributes_of_god.pdfIn PDF document text
    • https://s3.amazonaws.com/lunojol/ophthalmic_instruments.pdfIn PDF document text
    • https://s3.amazonaws.com/nokiva/kobasixofafivima.pdfIn PDF document text
    • https://s3.amazonaws.com/zerepuzuze/the_crowdsourced_delivery_report.pdfIn PDF document text
    • https://s3.amazonaws.com/paxivogedewilu/basic_korean_language_tutorial.pdfIn PDF document text
    • https://s3.amazonaws.com/wonoti/accp_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/bajapovogam/31754482545.pdfIn PDF document text
    • https://s3.amazonaws.com/wutezigojuxi/jididaxazebolejipuxuro.pdfIn PDF document text
    • https://s3.amazonaws.com/mejifavo/79247512140.pdfIn PDF document text
    • https://s3.amazonaws.com/nalifij/kanenigalowasu.pdfIn PDF document text
    • https://s3.amazonaws.com/zarelusipofox/place_attachment_theory.pdfIn PDF document text
    • https://s3.amazonaws.com/zuxadol/23784176834.pdfIn PDF document text
    • https://s3.amazonaws.com/pexodugosa/bachon_ki_kahaniyan_download.pdfIn PDF document text
    • https://s3.amazonaws.com/lupuvogotog/gototuralonid.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/293e57b2-bf8d-4581-aeb3-e741061a5503/zekigetodewas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aaa91206-34e0-44ca-8af0-36699ab57cb2/wwe_wrestlemania_35_kickass.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8e57240f-ec7f-4c74-bffc-0eb8ef32cef9/59530515026.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4aafbfb4-873b-45cd-92b3-78555b033fd7/tadimafafixobeko.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/475a1e31-1945-4317-9f67-8ea831c443df/wakemoxopi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/81d502fe-83f4-43a5-8d38-23cba1170e7d/81802199036.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/06323b56-17ea-4219-89fc-51f9f33da08e/6638780463.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_off00006d2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D2B 5304 bytes
SHA-256: 5537da5cd89e54d85b63d9e0be31ac3f53d158182ca4e46a82b9946a4a6f191c
font_01_sfnt_off00007f10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F10 10136 bytes
SHA-256: a33d31655a99c062cf5f6684bf529e9febf1e51f63f5c4699ae2e76537a1e4e6