Malicious PDF — malware analysis report

Static analysis result for SHA-256 6dd011142975787d…

MALICIOUS

PDF

49.4 KB Created: 2020-11-01 02:45:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 4a07af866486eb1db37bfe8d4f2805d8 SHA-1: a2f8d21a99adb74c92fd02e162e83bc2dc3fd5da SHA-256: 6dd011142975787dcafbe9c4aacbd1b7608f7a9dd5f7be139dcf02f33a2d0830
94 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'https://ttraff.ru/pify?keyword=ceevoo+antenna+reviews+uk'. The ML classifier also strongly indicated maliciousness. While no scripts were extracted, the presence of a malicious URL within the document body suggests an attempt to lure the user to a harmful site, likely for phishing or further malware delivery.

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.ru/pify?keyword=ceevoo+antenna+reviews+uk 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/welutizenop/euro_cafe_menu_huntington_beach.pdfIn PDF document text
    • https://s3.amazonaws.com/gajejasa/bounty_hunter_guide_rdr2.pdfIn PDF document text
    • https://s3.amazonaws.com/dinilederu/oklahoma_land_of_opportunity_workbook_skills.pdfIn PDF document text
    • https://s3.amazonaws.com/memul/project_scope_statement_definition.pdfIn PDF document text
    • https://s3.amazonaws.com/vifusupegiza/zelda_collectors_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/gifojuxaxeva/catholic_symbols_and_meanings.pdfIn PDF document text
    • https://s3.amazonaws.com/sedimeraxufi/endless_frontier_hack_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e2759d92-bb08-4d8b-aaa5-744bb3524a78/dawijavopapa.pdfIn PDF document text
    • https://s3.amazonaws.com/pegek/what_does_hmph_mean_in_text_language.pdfIn PDF document text
    • https://s3.amazonaws.com/simujix/1760166023.pdfIn PDF document text
    • https://s3.amazonaws.com/tetazino/51475414225.pdfIn PDF document text
    • https://s3.amazonaws.com/bevekizadoxuj/los_compas_y_el_diamantito_legendario_descargar_gratis.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_off000083c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83C0 4768 bytes
SHA-256: dc1a1c3b8e2cc8cfc89e15ff553a91ef7c8daa63dbb046ec4d31618b8b5c3906
font_01_sfnt_off00009415.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9415 10796 bytes
SHA-256: 745d9bd4af6b404cb5fd13eb8099e1270ab6a688bb00d1294acd90db1f99b309

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