Malicious PDF — malware analysis report

Static analysis result for SHA-256 0847dcbc705eba67…

MALICIOUS

PDF

70.9 KB Created: 2021-02-07 05:14:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 07a52d08e1cfd0604d3e141310ff8919 SHA-1: 82995346c7e16b6aca93bab15615f2524fdfe4d4 SHA-256: 0847dcbc705eba67c1727939182e046ff09241502d340ec3eedc3eaf2b7edf55
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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://leonvi.ru/wb?keyword=mozilla%20firefox%20driver%20for%20selenium PDF link annotation
    • https://cdn.sqhk.co/zazavoxujub/ieha3yG/27162120229.pdfIn PDF document text
    • http://dirtygirl.fun/el_moasser_math_1st_secondary_guide_answers3miuo.pdfIn PDF document text
    • https://felabare.weebly.com/uploads/1/3/0/7/130776415/wavokaz-todal.pdfIn PDF document text
    • https://cdn.sqhk.co/ravuviwidi/Xjejh7V/squirrel_girl_adventures.pdfIn PDF document text
    • https://lozibojugor.weebly.com/uploads/1/3/1/0/131069840/bebozuxuzidowu-gasisopolurab-timumibosin.pdfIn PDF document text
    • http://shoop-fn.ru/63567516229vs23w.pdfIn PDF document text
    • https://cdn.sqhk.co/lofujumixas/hj8Migg/dominoes_rules_double_12.pdfIn PDF document text
    • https://janirakuvofubej.weebly.com/uploads/1/3/4/7/134734148/ritewemileka_rizoxevidol.pdfIn PDF document text
    • http://copyright-services-us.com/pt_bd_sharma_date_sheet_b_pharmacy9j1n7.pdfIn PDF document text
    • http://reduslimitalia.website/dionex_chromeleon_6.8_manualpr2wo.pdfIn PDF document text
    • http://stopnutristrike.ru/imdb_your_guide_to_movies_tv_shows_celebritieskzybj.pdfIn PDF document text
    • https://fugakesuj.weebly.com/uploads/1/3/0/7/130776648/8dc3a5f92f0.pdfIn PDF document text
    • http://pressit.space/58741784342p6p63.pdfIn PDF document text
    • http://copyrightsupport-ig.com/mifobunudubezuregojunoljve5v.pdfIn PDF document text
    • http://gsmall.space/nekamizakuva87op.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_off0000d769.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD769 5236 bytes
SHA-256: 25e3c26b75d2454d592d7b71368cfb771ea1f0297d447668d310d9964fa8bf93
font_01_sfnt_off0000e948.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE948 10872 bytes
SHA-256: 194478a27f6c82219e29778c52cd4816b1ac3ffd43b88d75d7a7b433afa09676