Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6fd00ae896ccc3e…

MALICIOUS

PDF

66.7 KB Created: 2021-02-24 09:47:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 36063c74681757af85b5344c0f3b5e99 SHA-1: 0aa06942cfd90517c761fec7c658f65e4c92aac8 SHA-256: a6fd00ae896ccc3ed2f18fd8b7c6c061702d1119d268cc5fcfc939801f7a0a86
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://baarspo.ru/wix?keyword=earth+science+textbook+9th+grade+answers PDF link annotation
    • https://cdn.sqhk.co/febenapox/dtUodu9/88818248580.pdfIn PDF document text
    • https://cdn.sqhk.co/dipewoduge/xggiddq/kelly_s_running_warehouse_customer_service.pdfIn PDF document text
    • https://cdn.sqhk.co/suxavawudomo/sjhfggm/deniru.pdfIn PDF document text
    • https://cdn.sqhk.co/tinolaseja/lHoggFp/kilasetepep.pdfIn PDF document text
    • http://kusadelopo.iblogger.org/best_absorbed_form_of_iron_supplement.pdfIn PDF document text
    • http://wibedepotemuru.22web.org/wexiwanogotifo.pdfIn PDF document text
    • https://cdn.sqhk.co/mepapogivoma/Zuha22K/38009144407.pdfIn PDF document text
    • https://cdn.sqhk.co/vitimosugu/4J5iaQl/58299835317.pdfIn PDF document text
    • http://fetiweresanamud.iblogger.org/90083118929.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413108/normal_5ffb0bea81269.pdfIn PDF document text
    • https://cdn.sqhk.co/lazodadevab/EahjjiT/nail_salon_near_me_open_now_bronx.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370275/normal_5fe38f6c10ea5.pdfIn PDF document text
    • https://cdn.sqhk.co/gulanuwe/Ojh0nWL/fanunozomobu.pdfIn PDF document text
    • https://cdn.sqhk.co/viforoge/gfBr8hc/download_game_world_warship_combat_mod.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tojulov.epizy.com/catia_free_tutorial.pdfIn PDF document text
    • http://pokuzanu.epizy.com/baldivis_weather_report.pdfIn PDF document text
    • http://rebuvutiwedote.epizy.com/cydia_impactor_ios_11._4.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_off0000c330.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC330 5648 bytes
SHA-256: 541b80c930e43ceadb662ad9778ada7e84c17556f6d3c6572a152d5a8a624551
font_01_sfnt_off0000d671.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD671 12148 bytes
SHA-256: d37dc122a00a193520e1dae308a6a2a9335e395f614010dee08af7bde4cfb421