Malicious PDF — malware analysis report

Static analysis result for SHA-256 00d4a240a0521bf0…

MALICIOUS

PDF

70.8 KB Created: 2021-01-30 11:16:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 9855462a5b5f33f4f0d31a9cb1eaefa2 SHA-1: d78b2868e232e5b97ed1899b3f08a656d7b6d998 SHA-256: 00d4a240a0521bf036bdbe90c33bbc8e33cb7d3af3093043b763d65cadbe2518
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://seumenha.ru/wb?keyword=revelation%20the%20end%20of%20days%20cast PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4417523/normal_5ff106de6c27b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367268/normal_5fd2363fda7f7.pdfIn PDF document text
    • https://cdn.sqhk.co/zunesunatiri/YhbUXgj/acellus_sign_in_parent.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495059/normal_5fec0ec56fac2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4461763/normal_5ffbdaa46d57e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388274/normal_5fd2c6c781d39.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417998/normal_6008c1140e75f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451356/normal_5fcb4a18373ba.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410694/normal_600c8b9801749.pdfIn PDF document text
    • https://cdn.sqhk.co/mibajufaneja/UgeGDA2/grocery_shopping_tax_calculator.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369654/normal_601154d2de800.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422637/normal_5ff007b21d3f9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464995/normal_600a54d3d6712.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420014/normal_600f02f031cc1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pelubameta.epizy.com/wedding_guest_list_excel_template.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_off0000d874.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD874 5180 bytes
SHA-256: 6492b0aadfc27dc79a5695d3ba378d5d7cf8db277de1ecdd5f23aa974beb753c
font_01_sfnt_off0000ea30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA30 10576 bytes
SHA-256: f42d49f00a510507dcd6089286caba6396332a530e155a95fb483894330fd8cf