Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ebdf4821ee27f86…

MALICIOUS

PDF

72.2 KB Created: 2021-02-25 09:55:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 82a6676350c641b1780f348524e89287 SHA-1: 856121cacd291d64a408b37b36d774b086e8405c SHA-256: 9ebdf4821ee27f86b406ebdea5aefd88c90f5532aec62a819639e4bc03a890e0
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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/wix?keyword=trade+references+south+africa PDF link annotation
    • https://cdn.sqhk.co/febowozefu/ihiixEY/59467734759.pdfIn PDF document text
    • http://autobuff.xyz/livipo6p0sb.pdfIn PDF document text
    • http://kunujunekedi.mygamesonline.org/can_you_be_a_nutritionist_without_a_degree.pdfIn PDF document text
    • https://cdn.sqhk.co/vatopibar/jghahAd/waxararukinapifaz.pdfIn PDF document text
    • http://activa-fb.com/vawifazolivebigajoxenevobm41.pdfIn PDF document text
    • http://bewewafip.scienceontheweb.net/can_medics_go_to_ranger_school.pdfIn PDF document text
    • http://bamefidev.mygamesonline.org/similarities_and_differences_of_apple_and_orange.pdfIn PDF document text
    • http://allfreebets.ru/joxisovopedanijaxunay7doq.pdfIn PDF document text
    • http://top-salez.site/powowupibepo31cz.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408863/normal_5fe178c9d4be9.pdfIn PDF document text
    • http://atomyimperial.ru/68433974863naaps.pdfIn PDF document text
    • https://cdn.sqhk.co/gijosevozu/Xnvjejg/dinavenorutemiwogime.pdfIn PDF document text
    • http://helplnstagramoffice.com/modern_abc_of_biology_class_11_bookjpybl.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413007/normal_60196877cb035.pdfIn PDF document text
    • https://cdn.sqhk.co/fanabezom/SqgjH0g/house_for_sale_farm_road_bay_roberts.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000df08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF08 5024 bytes
SHA-256: 356841449ed166606d1a9a6469aa011bac8c3470d81a85590e539c7f8b1494f7
font_01_sfnt_off0000f017.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF017 10140 bytes
SHA-256: 1cd1da0f97ca4996d6ed45d49e14fd23949981429ee8f0ef6b706b3947e2d837