Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb8ec332e322636e…

MALICIOUS

PDF

77.0 KB Created: 2021-02-26 11:50:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: d8e5131e79d2e86aaaf5a01d8e3139f6 SHA-1: 372728f83e80022c29ab9a78342a05c70e158a6b SHA-256: bb8ec332e322636e7e32edfe18616bf1baedc10bab1d0d81447b691c0f973618
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://jottigo.ru/award?keyword=jj+virgin+diet+recipes PDF link annotation
    • https://cdn.sqhk.co/domojegibuze/cbkZidP/27106380035.pdfIn PDF document text
    • https://cdn.sqhk.co/donuvoduvedo/gglgeow/minecraft_build_mine_blocks_mod.pdfIn PDF document text
    • https://cdn.sqhk.co/difixoruze/p7igjja/xurumuzufidu.pdfIn PDF document text
    • https://cdn.sqhk.co/tajudozizif/cASNUbK/zegutibipozotoruvefomag.pdfIn PDF document text
    • https://cdn.sqhk.co/xogovofofi/0RzmxgT/gelitalum.pdfIn PDF document text
    • https://cdn.sqhk.co/woxemumi/ICjfibk/lobinutemiza.pdfIn PDF document text
    • https://cdn.sqhk.co/fepexeguma/jheTicc/wexiwijoguvesubijepunax.pdfIn PDF document text
    • https://cdn.sqhk.co/xuxofidipo/idjfheg/27956811572.pdfIn PDF document text
    • https://cdn.sqhk.co/xemuxebu/joLSBUN/78809007593.pdfIn PDF document text
    • https://cdn.sqhk.co/gavoduse/Ughjbif/vatorikaxajajiguxiwigu.pdfIn PDF document text
    • https://cdn.sqhk.co/wijelukifap/fK43jif/digital_marketing_segmentation_approaches.pdfIn PDF document text
    • https://cdn.sqhk.co/nikajovefer/fOjhijj/48141313643.pdfIn PDF document text
    • https://cdn.sqhk.co/kalusoxat/oMxGsic/ninja_star_shuriken_mod_apk.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wobemiko.epizy.com/45193878996.pdfIn PDF document text
    • http://bavubuseji.epizy.com/bedtime_stories_movie_dual_audio.pdfIn PDF document text
    • http://zadaxuro.rf.gd/99308196908.pdfIn PDF document text
    • http://jawevobafepen.epizy.com/dokepafekujetefariri.pdfIn PDF document text
    • http://duximepameme.epizy.com/zesupuvotodawipemuk.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_off0000f1f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1F0 5124 bytes
SHA-256: 681f5fea561771e033cb5946f44e2cb96e31c6387de9cb80477f77555c73f918
font_01_sfnt_off00010381.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10381 10412 bytes
SHA-256: 15fa459cb21d028877b8d9ff39d8a32d655b1389f353a0f435c40b0151060e02