Malicious PDF — malware analysis report

Static analysis result for SHA-256 c00063464ebecccc…

MALICIOUS

PDF

72.9 KB Created: 2021-02-19 18:57:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: a9a47436aedd3f83a61daadcbbf1a876 SHA-1: 04d60b67fec8bfa0caf7eb0e9c34dcf9b9a612a3 SHA-256: c00063464ebecccc3d1bc7a6161fc02169981453626ec549ef159c3486e98165
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://jacksth.ru/123?utm_term=proform+tour+de+france+2.0+exercise+bike+manual PDF link annotation
    • http://artistichomesolutions.com/dubasexoponimebafewijemfccz.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365549/normal_5fe18147cfedf.pdfIn PDF document text
    • https://cdn.sqhk.co/gagowuname/ghMYjaa/airport_baggage_scanning_images.pdfIn PDF document text
    • https://cdn.sqhk.co/jojojidatun/jjhhhi3/adidas_cloudfoam_slides_near_me.pdfIn PDF document text
    • http://brumbum2.xyz/davuvokabanuseod3is.pdfIn PDF document text
    • http://kartaidatodemeleri.com/sonukimixebejakerh7.pdfIn PDF document text
    • http://watertea.space/the_giver_personalityjchp4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425255/normal_601f3baef33a7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409413/normal_6021a4f3edb35.pdfIn PDF document text
    • https://cdn.sqhk.co/kenipafitu/dxEmhjB/puzelesapisaxigezov.pdfIn PDF document text
    • https://zapodebas.weebly.com/uploads/1/3/1/4/131437158/6927765.pdfIn PDF document text
    • https://cdn.sqhk.co/mizogujuzo/gdq2AF6/a_radar_history_of_world_war_ii.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386836/normal_600bbd3d47c9d.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/leteraxewe/althochdeutsches_wrterbuch.pdfIn PDF document text
    • https://s3.amazonaws.com/xonobijikivo/film_coraline_sub_indo_full_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/vinejivunitego/86442070132.pdfIn PDF document text
    • https://s3.amazonaws.com/tulosa/powimuvarivoz.pdfIn PDF document text
    • https://s3.amazonaws.com/liwafo/45830559118.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_off0000df96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF96 5748 bytes
SHA-256: 494d7fab5f2631a37fd4f3e2a649f0c010ec5dd1b702cccc644b659d808a197c
font_01_sfnt_off0000f315.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF315 10500 bytes
SHA-256: 1537b397cd6fccf7ee640fc2d5c642316dd5bfdce2a046f3e3c115f6ce268342

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