Malicious PDF — malware analysis report

Static analysis result for SHA-256 17fc0f96c6e80a90…

MALICIOUS

PDF

66.3 KB Created: 2021-02-11 20:30:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 0623ac5e9a67b7db294f4d4265397b4a SHA-1: 958be9a2be660c3f152e5d1a5649dc767525decc SHA-256: 17fc0f96c6e80a906e14103662761f4efc65cf16cfcd2c3f2a6487557624123f
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://baarspo.ru/123?utm_term=plop+plop+fizz+fizz+lab+answers PDF link annotation
    • http://vijofogozorumi.22web.org/57869882603.pdfIn PDF document text
    • http://fringigejy.site/powerpoint_gantt_template1w8oj.pdfIn PDF document text
    • https://refapezi.weebly.com/uploads/1/3/4/9/134904673/jisebupakup.pdfIn PDF document text
    • https://cdn.sqhk.co/tenokesime/jeaibhc/dungeon_knight_vr_gameplay.pdfIn PDF document text
    • http://hotita.fun/prime_factorization_worksheet_6th_gradeaxkfv.pdfIn PDF document text
    • https://cdn.sqhk.co/puvubuzu/Ciagf3E/kikkerland_rainbow_maker.pdfIn PDF document text
    • http://proita.space/1952081195899ytj.pdfIn PDF document text
    • http://eliyalte.com/boye_round_loom_patterns7lbhx.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jarifixe.epizy.com/expense_report_template_excel_mac.pdfIn PDF document text
    • http://nowotaresumoti.epizy.com/xutujumusajukajusafawuvo.pdfIn PDF document text
    • https://s3.amazonaws.com/fusopoxipo/android_9._0._1_name.pdfIn PDF document text
    • http://xukajipovaru.epizy.com/veritas_honing_guide_mk2.pdfIn PDF document text
    • http://mimiwuzoxul.epizy.com/pumodapu.pdfIn PDF document text
    • http://puloxivomavari.epizy.com/google_chrome_browser_free_for_ubuntu.pdfIn PDF document text
    • http://gizamir.epizy.com/72622148017.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_off0000c788.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC788 5176 bytes
SHA-256: b95c8cb8d50cc029d474fab99799fd5cc15d58fcb2accfb72ca10e5569bc79ba
font_01_sfnt_off0000d94a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD94A 10448 bytes
SHA-256: bca99d2ba94a139462bf652d603d57cfea05edf982bea203e4a741f01b9b6f1d