Malicious PDF — malware analysis report

Static analysis result for SHA-256 29c3e907143f5d96…

MALICIOUS

PDF

45.4 KB Created: 2020-11-08 02:50:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: e058b77b6b74ab1686495d0bc56b45e4 SHA-1: 7205125607d48e6a86c50e53adf30158196def5c SHA-256: 29c3e907143f5d968029ac0ff1ab66134a51a48180f4dae379c6a9a07faf1c33
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://traffine.ru/123?keyword=2000+yamaha+25+hp+4+stroke+manual In PDF document text
    • https://roninuvanajeg.weebly.com/uploads/1/3/1/3/131379749/wodatevobifawebaral.pdfIn PDF document text
    • https://luzejezoroze.weebly.com/uploads/1/3/4/3/134361740/xipetaxalevew.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387061/normal_5f8ea8a0f0af6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407576/normal_5f9d62318b711.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383464/normal_5fa31b330c7e4.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/6559565.pdfIn PDF document text
    • https://sutisivanopazar.weebly.com/uploads/1/3/4/3/134310164/xogenaxodo-wowugafonubat-potasalurirupif-xejafozu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391047/normal_5fa270abbe7b2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/towakog/dudajuremawobawudidufuben.pdfIn PDF document text
    • https://s3.amazonaws.com/xifabilejilab/someone_anyone_no_one_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/pozokimepe/banyan_elementary_school.pdfIn PDF document text
    • https://s3.amazonaws.com/piwupevivotixi/hose_for_subaru_ea190v_power_washer.pdfIn PDF document text
    • https://s3.amazonaws.com/sugaguxagu/bsc_1_year_chemistry_notes_in.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_off000070da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70DA 5616 bytes
SHA-256: e6b73009b65757aa128ca6ed291b0a25a8c2ed4178b2ff1fd9af750011b0b694
font_01_sfnt_off000083d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83D8 11232 bytes
SHA-256: b2d67e503dd8ce8f711821b036380f11d9ac8795ab9f55c46a3bc4b2ade53a75