Malicious PDF — malware analysis report

Static analysis result for SHA-256 696d043419d8c8c7…

MALICIOUS

PDF

71.2 KB Created: 2021-02-16 17:48:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 142326c816f7ccd35361d3f8322768d2 SHA-1: f59fe69eb8c048406e9b3f9f8e2d6188ce2fb2a7 SHA-256: 696d043419d8c8c77288d42d7d794c4f95509fe4e1a0d61472349d576df9fba6
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://jacksth.ru/123?utm_term=samsung+tablet+gt-p5113+won%2527t+turn+on PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4444123/normal_5fe79de56143d.pdfIn PDF document text
    • http://jigitozunawada.66ghz.com/citroen_c3_aircross_manual_usuario.pdfIn PDF document text
    • http://6gusevshop.space/essential_elements_for_ukulele_-_method_book_16my7e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444369/normal_600be2cd8a65e.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/novifamigot/apfelkuchen_hefeteig_streusel_springform.pdfIn PDF document text
    • http://bifezuragumizi.rf.gd/zewerikarexibevabawitame.pdfIn PDF document text
    • https://s3.amazonaws.com/minabiwa/28383601636.pdfIn PDF document text
    • https://s3.amazonaws.com/jifesu/apache_tomcat_8._0.pdfIn PDF document text
    • https://s3.amazonaws.com/dozore/descargar_alien_vs_predator_arcade_para_android.pdfIn PDF document text
    • https://s3.amazonaws.com/tanapilamaxi/alaipayuthey_movie_scenes.pdfIn PDF document text
    • https://s3.amazonaws.com/widiku/brother_day_special_whatsapp_status.pdfIn PDF document text
    • https://s3.amazonaws.com/sewamos/deep_draw_stamping_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/vuterijoze/password_keeper_android.pdfIn PDF document text
    • https://s3.amazonaws.com/gotenukevepunin/8899634080.pdfIn PDF document text
    • https://s3.amazonaws.com/rudelazifizuvo/fozewu.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_off0000d84e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD84E 5880 bytes
SHA-256: 9486829be974dbf0fbae5e548b50ef97600f1fa8d38ceb67abd73e8ce61e0ca1
font_01_sfnt_off0000ec5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC5F 10332 bytes
SHA-256: faa18340f54203535f65206960bf727bd666e943d5918ab5b1016d7a98830ea7