Malicious PDF — malware analysis report

Static analysis result for SHA-256 7937dde9a83c39fe…

MALICIOUS

PDF

90.8 KB Created: 2021-04-01 18:58:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-14
MD5: 0ca313783f49ce300acc1f1dccd1c0a2 SHA-1: 07eafad56b9344b9a82237cdc0ce3a8d7082b3e4 SHA-256: 7937dde9a83c39febfef56a51e1a6a76fe9cc2497f8a841127f59f58ec35814a
146 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
  • 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.
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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 http://thailandlove.site/9874893747608by8.pdf In PDF document text
    • http://cupe1.ru/76472161941llq8l.pdfIn PDF document text
    • http://carinsusa.info/spectrum_math_workbook_grade_8_free92cvz.pdfIn PDF document text
    • https://cdn.sqhk.co/balaragu/iDTqjIX/tuzixazewubisusun.pdfIn PDF document text
    • http://ital-girl.space/widiziwimagimurewefimbo1v.pdfIn PDF document text
    • https://cdn.sqhk.co/sofetarunox/iijjNgd/20020951828.pdfIn PDF document text
    • https://cdn.sqhk.co/kixobaza/uFkhenz/87678172089.pdfIn PDF document text
    • http://lozelenirulotu.22web.org/rosipuzefonipuvinep.pdfIn PDF document text
    • https://cdn.sqhk.co/temejikowewa/23jangF/javesujas.pdfIn PDF document text
    • http://detonic-hypertonie.website/chapter_7_geometry_quiz_answersabvxw.pdfIn PDF document text
    • http://bachanalytics.com/the_rider_tarot_deck_buy_onlineomrug.pdfIn PDF document text
    • http://gozipoxeget.iblogger.org/zavupululixikadamefi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://feedproxy.google.com/~r/wb/ENAH/~3/kMuynZNWtA0/wb?keyword=how%20do%20waves%20affect%20coastal%20erosionPDF link annotation
    • https://uploads.strikinglycdn.com/files/24781fa1-a2c6-4078-842c-216d8c4e64cf/fallout_4_mods_pc_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/wemazun/billing_statement_sample_format.pdfIn PDF document text
    • https://s3.amazonaws.com/benuka/26181064866.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0a5475ae-0945-4861-bb23-bb821c2d7b9d/you_majored_in_what_chapter_1_summary.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011783.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11783 4916 bytes
SHA-256: b19dc31510e8f889e843e83a7b285eca4764d070e2f1534b6324d2db1be82cc3
font_01_sfnt_off0001285b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1285B 12124 bytes
SHA-256: 216631a11085d1a9cff3ab1043293c8021b5b668c66869b9d37ca94f733d9d0f
font_02_sfnt_off00015042.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15042 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3