Malicious PDF — malware analysis report

Static analysis result for SHA-256 00326dd4b4399e9c…

MALICIOUS

PDF

71.4 KB Created: 2021-01-30 14:50:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: 73d94ffd215be63599a78b816e729a2c SHA-1: b69ba4e0092f9adc81578153980993842e5b08d3 SHA-256: 00326dd4b4399e9cf1cf616bd7a3a044c3094c398f55f155ccc859b5a239ab64
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://yafferge.ru/aws?utm_term=body+corporate+agm+chairman%2527+s+report+template In PDF document text
    • https://cdn.sqhk.co/fefoseto/gj9iilA/nick_folk_patriots.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4445107/normal_6007558667b48.pdfIn PDF document text
    • http://goodnaturak.space/bejagisemi7sp.pdfIn PDF document text
    • https://cdn.sqhk.co/vimexuda/Md0jfhi/beat_the_puppet_mod.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384464/normal_600cba88195f6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4472783/normal_5fdd99116c3c4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374374/normal_5ffecf158a0e9.pdfIn PDF document text
    • https://cdn.sqhk.co/baxorurifina/MheLAgc/roblox_castle_story_wiki.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420756/normal_5fd99087abc30.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444369/normal_5fdc17b6d3f2e.pdfIn PDF document text
    • https://cdn.sqhk.co/tijinujul/ibibEhc/spyro_remastered_metro_speedway_orb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417834/normal_5ff660f5a114a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420034/normal_5ffd2b68acc0f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467601/normal_600ae000b0cd5.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/fadupazageraf/fuwonefiwakopavasow.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_off0000da7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA7F 5672 bytes
SHA-256: 9aec8f7151dce2f4e7406f4aaf80ebc7891935bbcb54c7fe4d870c273e6df4b7
font_01_sfnt_off0000edbc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDBC 10144 bytes
SHA-256: e1e6c876129e2f227d1ae769c848732bf1b624d3ea61548e833c11cb70b9006c