Malicious PDF — malware analysis report

Static analysis result for SHA-256 15b59e7ea3941143…

MALICIOUS

PDF

73.0 KB Created: 2021-02-28 11:27:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 58df1e2ff12f0e13d5aedf1febe2a65a SHA-1: da0e6a89945f0d0fb45494f664d568860a13175d SHA-256: 15b59e7ea3941143c70aca76e8ac8d36eb92b43f98730e31b8c2c757665b8ee7
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://gimoguvi.ru/123?utm_term=what+is+the+best+microphone+for+podcasting PDF link annotation
    • http://milanomoda.site/705492044388x82u.pdfIn PDF document text
    • http://zaxevef.getenjoyment.net/what_is_primary_and_secondary_standard_give_example.pdfIn PDF document text
    • http://xulodol.mygamesonline.org/airspace_sectional_chart.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422378/normal_5fdb8df721110.pdfIn PDF document text
    • http://netzamka.ru/solidworks_practice_drawingsu7rjv.pdfIn PDF document text
    • http://lnstagramsupportingcenter.com/types_of_blending_word_formationxri4q.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490122/normal_5fde3c1e6f138.pdfIn PDF document text
    • http://moxegelubopidi.sportsontheweb.net/62043887475.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4499282/normal_600e87e3aabe3.pdfIn PDF document text
    • http://wrestling-mma.com/samsung_smt-c5320_hd_hdmi_optimum_cable_boxtj0sj.pdfIn PDF document text
    • http://bitcoinchat.fun/how_to_write_a_research_proposal_introductioni1oa6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4456166/normal_5feb6bc66dd66.pdfIn PDF document text
    • http://burrrhey.tech/best_graphic_design_books_freenjauy.pdfIn PDF document text
    • http://magic-spring.com/kenshi_recruitable_prisoners_mod_guideuvjrm.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wafovekideg.rf.gd/resumen_del_aparato_respiratorio.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_off0000e1b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1B1 5688 bytes
SHA-256: e8e3e3cf7e3cabe2201c5478e1cac02414a4cc6b99417a882240b01b8c9b6327
font_01_sfnt_off0000f4f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4F0 9912 bytes
SHA-256: f2382946303b310c5d89b9250ee493d411ec811ed295525f2f44491d21093dc2