Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e206cef82ea59bf…

MALICIOUS

PDF

81.4 KB Created: 2021-02-19 18:49:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 5da2428b61b2cb110f9778292362ab38 SHA-1: e14f044a27c68cd7a0c831e8dedba5afd2939b1e SHA-256: 8e206cef82ea59bfdbcfec8babda39465c43b0bb2732e6704277b5ff06620218
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://jottigo.ru/wix?keyword=running+man+2016+episodes PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4444622/normal_5fd7b5e31a8dc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415767/normal_601d9f27ebb0b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489255/normal_5ff457d997ee5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4503692/normal_6002083f6aea7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417523/normal_5fd911d8c39af.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414341/normal_5fe9821c4dc5c.pdfIn PDF document text
    • http://lirerigoteses.22web.org/body_parts_worksheet_for_first_grade.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453720/normal_5fde761fe44b1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486748/normal_601f623e32af0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384154/normal_5fed684850aa7.pdfIn PDF document text
    • http://vesibigezedenu.iblogger.org/bengali_movie_villain_full_hd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377377/normal_6027688adb9d4.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/lopadivupudexa/rukemupefadunavigij.pdfIn PDF document text
    • https://s3.amazonaws.com/numunenoji/tavulemorozuxagaz.pdfIn PDF document text
    • https://s3.amazonaws.com/jitimesolagun/kingspan_kooltherm_k108_data_sheet.pdfIn PDF document text
    • http://dosenivejadapi.rf.gd/99151732714.pdfIn PDF document text
    • https://s3.amazonaws.com/mawesenasijoser/describing_enlargements_worksheet_tes.pdfIn PDF document text
    • http://wuzegez.epizy.com/explorer_for_macbook_air.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_off00010391.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10391 5640 bytes
SHA-256: 23850ae70c1dca859c7c9adf87ec0568d9ef17c844d86875467ecda979a990cb
font_01_sfnt_off000116be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x116BE 9924 bytes
SHA-256: ac7c8be1d4321194b2c8c32a92c7a2a0cd66d3b24e561049fb6f74dff83fe4d7