Malicious PDF — malware analysis report

Static analysis result for SHA-256 660ec1c9a7ca1da5…

MALICIOUS

PDF

72.6 KB Created: 2021-02-24 21:39:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 6b17cd041b4cdf1038f03332055287ab SHA-1: eb4b6d508287d662e21a313d53c00cb8d6e3a22a SHA-256: 660ec1c9a7ca1da5e7fc1f4e4139ad305b2015006c445d35b2177dda8c5cc779
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=imovie+10.0+manual+download PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4367304/normal_60341ae5ccd42.pdfIn PDF document text
    • https://kaxogirigajel.weebly.com/uploads/1/3/4/6/134611066/578c2bf0a36b1.pdfIn PDF document text
    • https://rurasaza.weebly.com/uploads/1/3/4/8/134869927/2440537.pdfIn PDF document text
    • http://raxejudesezix.scienceontheweb.net/witalanubagagikixebiwej.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482853/normal_5fe25756ddca2.pdfIn PDF document text
    • http://mapotilij.mygamesonline.org/keluritezaninuva.pdfIn PDF document text
    • http://pixunune.sportsontheweb.net/sex_education_season_3_release_date_countdown.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410431/normal_5fe95c0183551.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459788/normal_5fccce44c7589.pdfIn PDF document text
    • http://wijasagasipode.getenjoyment.net/dark_blue_dress_coat.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/xezonijida/free_ebook_template_for_openoffice.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_off0000e2ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2EA 5012 bytes
SHA-256: 55bb01df2ac68ce68a918df64cf1354126d460a88da681bd70adb3176a145bbf
font_01_sfnt_off0000f3ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3FF 9756 bytes
SHA-256: 608a4beb07cfdbccf11115fb0684174f4d8ca8ad7aa0ed722fd43bbedcdab49f