Malicious PDF — malware analysis report

Static analysis result for SHA-256 89d7d096c47cc171…

MALICIOUS

PDF

72.4 KB Created: 2021-02-28 01:44:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 188ab0674c87c10163a3ce2e547be11b SHA-1: e335b0230c96eaf09c2fd5a8ff796af201a71252 SHA-256: 89d7d096c47cc171af9aecdcd289bb681fc4545cabc35633ee7c63cd5d67fa2f
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://vilenefex.ru/award?keyword=lost+in+yonkers PDF link annotation
    • http://beririka.scienceontheweb.net/oracle_sql_certification_cost_in_india.pdfIn PDF document text
    • http://peromopativej.mypressonline.com/how_many_pages_does_harry_potter_7_have.pdfIn PDF document text
    • https://tugizikorosizo.weebly.com/uploads/1/3/4/5/134502987/vakavelivobuwudi.pdfIn PDF document text
    • https://mimitokiwunas.weebly.com/uploads/1/3/4/0/134012498/c6403d.pdfIn PDF document text
    • https://pagajunudew.weebly.com/uploads/1/3/5/9/135992687/piwisipusin-tuwizewuwux.pdfIn PDF document text
    • https://fikuvigobe.weebly.com/uploads/1/3/4/5/134582673/7245150.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385434/normal_603584d775a49.pdfIn PDF document text
    • http://rolapisi.scienceontheweb.net/capsim_for_dummies_2020.pdfIn PDF document text
    • http://xawamiwupajev.mygamesonline.org/how_to_renew_your_license_in_nc_online.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387243/normal_60064f6e8a39f.pdfIn PDF document text
    • http://xosubowavenu.mypressonline.com/repazomusisu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4472793/normal_60390e2c8dba0.pdfIn PDF document text
    • http://patajafurep.mywebcommunity.org/how_much_do_content_managers_make.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nedizilunok.myartsonline.com/menasubigu.pdfIn PDF document text
    • https://s3.amazonaws.com/juliziwojatige/suvagivobupuwaxaxif.pdfIn PDF document text
    • https://s3.amazonaws.com/gezizefefififa/37802349231.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_off0000e1a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1A7 4544 bytes
SHA-256: a5d5e780e7fb95e132b50a9f199a8741fd4dfee165405be5800a6de6b9d1e096
font_01_sfnt_off0000f138.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF138 10512 bytes
SHA-256: 972a2f405124bef424b62f4a0fbf100867c0d3ff33ce673396490908901220e6