Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e8531f868f2e945…

MALICIOUS

PDF

72.9 KB Created: 2021-02-27 13:45:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: e8054b438c206b7c3ffce588a4d1b4df SHA-1: 12fc6989967d25198830feb8b53cc56929ceb1b0 SHA-256: 2e8531f868f2e945e34695e36a35cd72529760f38aed60736d7a24400eaad702
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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/award?keyword=what+machines+are+used+in+mining PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4389106/normal_5fef664222d3f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368474/normal_60324d5e5ab70.pdfIn PDF document text
    • http://mapotilij.mygamesonline.org/kesujegi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460255/normal_6003aad6f1e13.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418777/normal_6027476dbdd58.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464067/normal_5fe9ba0ecf05c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370303/normal_5ff538137b541.pdfIn PDF document text
    • https://cdn.sqhk.co/kowaziwaso/i5F3Hii/59280493498.pdfIn PDF document text
    • https://cdn.sqhk.co/wifinalimow/ajahcgj/viking_electric_hammer_mill.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369793/normal_6014e5ce2ac92.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451545/normal_5fededade8de0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kisalonokexiwi.atwebpages.com/guloz.pdfIn PDF document text
    • http://rulamiji.onlinewebshop.net/bandicam_free_product_key.pdfIn PDF document text
    • http://bumurulepowele.myartsonline.com/28243187431.pdfIn PDF document text
    • https://s3.amazonaws.com/wixatax/60273165785.pdfIn PDF document text
    • https://s3.amazonaws.com/bubeto/53626065197.pdfIn PDF document text
    • https://s3.amazonaws.com/susonanezaj/experimental_design_statistics_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/jenisozazewubo/xupipiligirewited.pdfIn PDF document text
    • https://s3.amazonaws.com/pexodugosa/36147687247.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_off0000e0e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0E8 5336 bytes
SHA-256: 28f28ba48b379c280233f5ed8e87a4b528959a8150be2b9999abbc801e7622ed
font_01_sfnt_off0000f2ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2ED 10320 bytes
SHA-256: 5c9fd0088c4a4157ac1ad0c94620f11c3a6bded7cc032a7eba366dca063e89bf