Malicious PDF — malware analysis report

Static analysis result for SHA-256 c84bfc1f296ecc24…

MALICIOUS

PDF

75.5 KB Created: 2021-02-14 20:02:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: b670ae911d8c0fef1c2c4dcf688ab216 SHA-1: 6b657aaede38ec75b0baaff0bc018bf4f3021a47 SHA-256: c84bfc1f296ecc24f5f7a21c07f65ad3639f6dcd9073b10088cd9126c5d975a2
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://baarspo.ru/wix?keyword=scary+movie+1+cast+heather PDF link annotation
    • https://cdn.sqhk.co/velizovatim/uieigkY/empires_and_allies_cheat_codes_android.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368506/normal_600484f423c90.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384152/normal_5fd0e18789cbe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450631/normal_601d6dd6b0d3d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369901/normal_5fcee68e72c98.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476751/normal_6021ee1f571a4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381085/normal_600e13f674834.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459628/normal_5ff5075455b08.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/dapekufoxiraku/apple_pages_template_flow_chart.pdfIn PDF document text
    • https://s3.amazonaws.com/saxefi/hallelujah_sheet_music_in_g.pdfIn PDF document text
    • https://s3.amazonaws.com/levumoduf/1793429831.pdfIn PDF document text
    • https://s3.amazonaws.com/gogoxowiniza/half_imperial_sheet_meaning.pdfIn PDF document text
    • https://s3.amazonaws.com/wufujudisu/instruments_of_the_orchestra_free_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/genijusemu/41660547314.pdfIn PDF document text
    • https://s3.amazonaws.com/vebogotexaf/dexutoxapasononatimuz.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_off0000ebe7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBE7 5324 bytes
SHA-256: ea926882127406b53a82fae6dee98390112cfaeb238e545a5643268ce5a460e9
font_01_sfnt_off0000fdea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDEA 10436 bytes
SHA-256: 0c3d46b4df64a301d2adc42c77cdca815d008523ea0f26ffaf6d1d812ad6524b