Malicious PDF — malware analysis report

Static analysis result for SHA-256 6beb4285c5ef471b…

MALICIOUS

PDF

89.3 KB Created: 2021-02-16 01:52:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: cb13446e411d508c3b5e03fb759ae8f9 SHA-1: 722fdc3474e67179f9ec1979e7298a2d9767c23a SHA-256: 6beb4285c5ef471b48a4276bf0b26903863af8dd92033b44e6a069ade933b24e
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://druttle.ru/wb?keyword=compare%20and%20contrast%20essay%20outline%20pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4483089/normal_5fdb0c5fc0220.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385847/normal_6021ccbda4bcb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4503787/normal_5ff54f4f43fd5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370073/normal_602479567fc81.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382412/normal_5fd8a0ad0d5b0.pdfIn PDF document text
    • https://cdn.sqhk.co/butiluluvuk/aXmHjdV/90881912245.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407087/normal_60180dd1b8f63.pdfIn PDF document text
    • http://tufezoba.22web.org/einstein_analytics_bindings_guide.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459164/normal_60152bd71af17.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470400/normal_6020d11a936c9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407318/normal_5fda5838dafd1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4466662/normal_5fc9db1453de7.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/juzowilipi/movimiento_circular_uniforme_ejemplos_en_fisica.pdfIn PDF document text
    • http://duwimufowewis.epizy.com/belize_passport_application_form_3b.pdfIn PDF document text
    • http://vezuzatutuxi.epizy.com/57914878398.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_off000120e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x120E5 5308 bytes
SHA-256: 68840d9e144b6f9f5d6f8e5fa49b2abc739d797197cda67eb6540e9e5c8b8ecb
font_01_sfnt_off000132df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x132DF 10908 bytes
SHA-256: 4d96daf1a3466915c3da6a0cebd4a77de2378231764e7130e11c588c7e72b224