Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c058f44d49f5cce…

MALICIOUS

PDF

67.2 KB Created: 2021-02-22 05:53:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: d98a6907282aea9b6bc132ec9c70d928 SHA-1: 9ea4b8852d4a5f04e9d9eb6dab2c73e0db278514 SHA-256: 6c058f44d49f5cce13095dc0cbf800bed6674377c489570ccc12e7ed7466592f
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/aws?utm_term=how+much+are+keurig+pods+at+costco PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4368222/normal_6006ecb2d5ab0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413456/normal_5ff3d6c33932e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389085/normal_60308aed5b859.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369164/normal_5fca7980c7032.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379053/normal_5fc953d069330.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471092/normal_60026e9c5de3d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480595/normal_60010fe8209ec.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415748/normal_600c0484b0216.pdfIn PDF document text
    • http://siwutasir.iblogger.org/gesefedibasatekiseruje.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365600/normal_6009a2cb6a6a1.pdfIn PDF document text
    • https://cdn.sqhk.co/wixexozesila/VgjT6Yq/digital_marketing_basic_concepts.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482618/normal_5fe2d3e81ec68.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4494661/normal_6001e73ec14e2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402519/normal_602a4ffe09ef8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4427086/normal_5fe02e7a89906.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408478/normal_601e5e6dc68ec.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382197/normal_5fc7c0187d035.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://finubovuputok.epizy.com/ben_10_movie_2019.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_off0000c815.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC815 5572 bytes
SHA-256: 77e4dbdea5f1c1de407aa5c927870c8570bb171b4e90b2e6cf08bf868b366983
font_01_sfnt_off0000dae7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAE7 10880 bytes
SHA-256: 3f7a256a8cd6a8747a7fe09fb9906b63052fbe3e6d1f3eab93bc802f397402d0