Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2d3c6b3a092280e…

MALICIOUS

PDF

76.1 KB Created: 2021-02-26 00:07:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 6387327f23f83bf40664a04117cd91fa SHA-1: dd1c395ee5bb25edd0747d445555e48e6d467416 SHA-256: f2d3c6b3a092280e2eec82a6404442263a3a5c1d718317a19d7fbb6fb93d9087
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://jacksth.ru/award?keyword=what+river+borders+north+korea PDF link annotation
    • http://midikakuvekume.mywebcommunity.org/thule_roof_rack_bike_attachment.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496818/normal_600cf5c770aa5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470543/normal_5fd619ff6ed0b.pdfIn PDF document text
    • http://1s.london/photosmart_5520_ink_cartridges_stapleswt7yp.pdfIn PDF document text
    • https://cdn.sqhk.co/nupozifulija/ia5aFAE/34246945053.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4504922/normal_5febd4be0e415.pdfIn PDF document text
    • http://vubitim.sportsontheweb.net/music_guitar_chords_chart.pdfIn PDF document text
    • https://cdn.sqhk.co/naziwixolagu/iaMXOgJ/best_lightsaber_color_poll.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459636/normal_6013dc208d8f1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4462980/normal_5feb8116dafbf.pdfIn PDF document text
    • https://cdn.sqhk.co/kurafuso/a5AANhg/buggy_racing_northern_ireland.pdfIn PDF document text
    • http://vuvulusigi.scienceontheweb.net/does_1_rep_max_build_muscle.pdfIn PDF document text
    • http://maska-respirator.shop/autocad_converter_software_freeno1xc.pdfIn PDF document text
    • https://cdn.sqhk.co/ritasuxa/jcshahf/gisunamavuratif.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vimixof.onlinewebshop.net/administration_job_titles_list.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_off0000ed8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED8F 5160 bytes
SHA-256: c6102b0d548456423e9c743fd1a4938468de8b0a3da7f8749bf674dd0264f6f8
font_01_sfnt_off0000ff22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF22 10792 bytes
SHA-256: 61e684e5892ad4490d03ec253b812b7e5a38a3b936a79d63237cc8c83fd49c11