Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd84c082a5a4201e…

MALICIOUS

PDF

74.1 KB Created: 2021-02-20 10:54:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 71c960f355ddbf8716d19bdce549e3d9 SHA-1: b5ce9962aab468c051de20df2c466322934ffaa9 SHA-256: bd84c082a5a4201efa5ac4ab5acc8429de3f779670b397855670ba10f82a0a06
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://maypoin.ru/123?utm_term=boy+in+the+striped+pajamas+shmuel+quotes PDF link annotation
    • https://cdn.sqhk.co/xuwisagilevi/REdiuMp/lupepebazo.pdfIn PDF document text
    • https://cdn.sqhk.co/tamoravuwera/0eHjeji/coc_th9_war_base_copy_link.pdfIn PDF document text
    • http://lyudi23.ru/exocytosis_examples_of_active_or_passive_transportamtc5.pdfIn PDF document text
    • http://semengergel.ru/alive_in_shelter_18_dlc_free_downloads68mp.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453560/normal_5fe518c125684.pdfIn PDF document text
    • http://modernstyle.pro/enfoque_conductista_en_la_educacionagakb.pdfIn PDF document text
    • http://padakogako.iblogger.org/what_is_lord_of_the_flies_chapter_1_about.pdfIn PDF document text
    • http://kivumokaf.22web.org/88027235257.pdfIn PDF document text
    • http://gisomog.iblogger.org/anjali_ki_sagai_dj_song.pdfIn PDF document text
    • http://help-bluebadgecenter.com/45690330298px8b9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414678/normal_5fcee0af37af9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380076/normal_5ff578a704945.pdfIn PDF document text
    • http://dasaburaxad.22web.org/impedance_matching_transformer_calculator.pdfIn PDF document text
    • http://onlineeshop24.xyz/photoshop_tutorial_3_easy_photo_effects_for_beginnersf6oje.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vafotuneg.rf.gd/6189021267.pdfIn PDF document text
    • http://nuwojore.epizy.com/11463440483.pdfIn PDF document text
    • http://devisufuxuvit.epizy.com/42289788906.pdfIn PDF document text
    • http://zilajib.epizy.com/13810885320.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_off0000e5dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5DD 5552 bytes
SHA-256: b6a5a7d51a854b5e46bd971fb1e0316cd746a9d90365c866b0865fa603a79d54
font_01_sfnt_off0000f8a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8A0 10208 bytes
SHA-256: c330ae368f3cd720867c6dc3eae67a017a41d77e57422b6cb93e65d366f69767