Malicious PDF — malware analysis report

Static analysis result for SHA-256 1eaf7b1bc9924f11…

MALICIOUS

PDF

68.6 KB Created: 2021-02-14 16:09:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 65b6508f31f5d57e062fdf35b4875c5e SHA-1: 96e16b335289a1132db64a88cfc46df9f73918b9 SHA-256: 1eaf7b1bc9924f11fe6592ae476e144bb0914fc2268149ba84fcc6fed697524b
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://jottigo.ru/wb?keyword=magnesium%20sulfate%20chemical%20equation%20formation PDF link annotation
    • https://wujipiledulom.weebly.com/uploads/1/3/4/6/134695719/a81d7ff4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465403/normal_5fd3950848f67.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418368/normal_5fec257b6e8f6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450876/normal_601a1bb921855.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369507/normal_5fe188c31aef6.pdfIn PDF document text
    • https://cdn.sqhk.co/jigixomavola/PjfgeJo/get_real_subscribers_and_views_for_youtube.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384836/normal_5fd96abb259a9.pdfIn PDF document text
    • http://onlinetyz.xyz/piano_chords_chart_downloado9y0r.pdfIn PDF document text
    • https://saniruguroxi.weebly.com/uploads/1/3/4/5/134585545/13a32706f46b42.pdfIn PDF document text
    • http://o-karte-kopilka.com/bare_necessities_sheet_music_singingo7qfp.pdfIn PDF document text
    • http://klosheff.xyz/kewojebunivebavbrypy.pdfIn PDF document text
    • http://tryse.xyz/candlewood_lake_fishing_reportsafclb.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/lovetijif/detroit_lions_injury_report_week_11.pdfIn PDF document text
    • https://s3.amazonaws.com/xonaxevetaf/69086311367.pdfIn PDF document text
    • https://s3.amazonaws.com/salosibejodod/nubibanizixusopij.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_off0000d054.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD054 5428 bytes
SHA-256: 11af94f07c8af58f46c72067dd0dc3b5eaf28087e2ae85808046fa22733f4e82
font_01_sfnt_off0000e2b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2B0 10284 bytes
SHA-256: ba0aedec343de31b8a8d8671bb9a3ab8e9540f48576c5fe2657c5be0c71c9763