Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a6212b093a924bd…

MALICIOUS

PDF

52.2 KB Created: 2020-11-05 12:07:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: ee2dd4747f12ec57cadeb297072c8116 SHA-1: da467f2fb45d0b459f375d1160188cc7bb6cfecb SHA-256: 1a6212b093a924bd92591be5eb4d6cb95ed25f3584e9be96f3142f8ff741fc91
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://gettraff.ru/strik?keyword=ada+2020+guidelines 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/muvemasoxaji/nejowi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/afd8084a-d963-4e91-8b4f-4250947323e3/xogufukixixisa.pdfIn PDF document text
    • https://s3.amazonaws.com/potamotaz/beavis_and_butthead_wiki.pdfIn PDF document text
    • https://s3.amazonaws.com/jojitagifuva/tok_presentation_example.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/720a83b0-de52-47a6-ab2b-bc81b496cb29/jolibidudoduloso.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f56beb4d-37e5-4e5e-a6a5-a01c574fce11/26049930924.pdfIn PDF document text
    • https://s3.amazonaws.com/xeponodij/100_ideas_that_changed_graphic_design.pdfIn PDF document text
    • https://s3.amazonaws.com/setaxilitozuko/my_english_by_julia_alvarez_questions_and_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/dadupawo/bekinosotimalokegerebebun.pdfIn PDF document text
    • https://s3.amazonaws.com/mupudipuvo/gun_games_unblocked_online_for_free.pdfIn PDF document text
    • https://s3.amazonaws.com/mijedusovineti/43164837223.pdfIn PDF document text
    • https://s3.amazonaws.com/kizuporowefib/game_clicker_download.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_off00008d12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D12 5160 bytes
SHA-256: 49e1a187f30fcdcd418baf07b47f0fb8d4eedd16f0baf0a080fe2e938c419c36
font_01_sfnt_off00009eaf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9EAF 11084 bytes
SHA-256: 0f9062d3c04f75cc2f7696e4cdaccbee890114e52c68311c9fb32529634d621c