Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba1c7ea76efd78a4…

MALICIOUS

PDF

70.4 KB Created: 2021-02-27 12:32:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 764cdca5fd01b42fb777d57aaa2611f9 SHA-1: a128264073add3e90de2e778694aa1b9c5bc3074 SHA-256: ba1c7ea76efd78a4de7137ce4658d73a7b759fd85e8eafa82308f7af1928ca55
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://xezojetit.ru/award?keyword=quality+management+system+software+australia PDF link annotation
    • http://xorabawik.medianewsonline.com/56443163732.pdfIn PDF document text
    • https://cdn.sqhk.co/dawupana/ijhaifN/61222355363.pdfIn PDF document text
    • http://zasaluto.iblogger.org/pedigelurutisiva.pdfIn PDF document text
    • http://gagivukamuw.getenjoyment.net/kanobirirere.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444117/normal_601792d241298.pdfIn PDF document text
    • http://vumexovuvelafe.medianewsonline.com/crusader_kings_2_mods_download.pdfIn PDF document text
    • http://stopnutristrike.ru/criterios_de_la_conducta_humanaz0mtl.pdfIn PDF document text
    • http://goodxday.xyz/2015_troy_bilt_bronco_parts_diagrambflvi.pdfIn PDF document text
    • http://mefazezotaw.22web.org/jsdoc_template_tag.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wefixewixe.rf.gd/rusubuwo.pdfIn PDF document text
    • http://desiwafinu.epizy.com/57667358626.pdfIn PDF document text
    • http://ziwivazud.onlinewebshop.net/gufonamuvijenifi.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_off0000d796.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD796 5340 bytes
SHA-256: 80f122ba67cd62a617b09f8b1d9e31c6e0e0d1b264ce9350e3ac244757e405b3
font_01_sfnt_off0000e9cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9CD 10324 bytes
SHA-256: 236dba66edb98ccd849a11a5040832d1317544aaa900f56797ee004901129b15