Malicious PDF — malware analysis report

Static analysis result for SHA-256 3943b6e3b97d735d…

MALICIOUS

PDF

70.5 KB Created: 2021-03-08 22:42:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 341bffc624bf6a3af38214153b0a2177 SHA-1: 90c9c311726e0f705aa4df4123ca556980ba5096 SHA-256: 3943b6e3b97d735d03131fc69126e4da76ab080d67a9459ff971f016a46c5e81
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://vilenefex.ru/wix?keyword=husqvarna+viking+%25231+1200+sewing+machine+manual PDF link annotation
    • http://mesretly.xyz/jikolimemezejofilebekujthb.pdfIn PDF document text
    • http://demask.space/white_tiger_information_in_teluguc4v9i.pdfIn PDF document text
    • http://itfamily.pro/50069425773mt2pi.pdfIn PDF document text
    • https://lutigasudubuwa.weebly.com/uploads/1/3/2/6/132695203/vogogifikifumonuzeno.pdfIn PDF document text
    • http://nakanilo.club/nuwebodojovulageerju2.pdfIn PDF document text
    • http://bonifacy.site/antimanual_de_filosofia_resumen_capitulo_43he7n.pdfIn PDF document text
    • http://semengergel.ru/english_for_business_studies_teachers_book_second_edition_free_downloadfgn8g.pdfIn PDF document text
    • https://mazerobuwi.weebly.com/uploads/1/3/1/3/131398334/xawenawijumaxijus.pdfIn PDF document text
    • http://rentline.pro/cars_movie_songs_mp3_downloadkqvkz.pdfIn PDF document text
    • https://bonesinidojesu.weebly.com/uploads/1/3/4/5/134591006/xapepobumix.pdfIn PDF document text
    • http://lnstagramcopyrightcenter.com/download_subtitle_divergent_bahasa_indonesiaujhfn.pdfIn PDF document text
    • http://select-get.top/nuvabiluxew75k2j.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gavofuduwaxene.epizy.com/does_vinsanity_shred_work.pdfIn PDF document text
    • http://diturasenupope.epizy.com/deductive_reasoning_quiz.pdfIn PDF document text
    • http://zozezofi.rf.gd/minimal_ecommerce_template_wordpress.pdfIn PDF document text
    • http://xanatilaguweve.epizy.com/dd_tomb_of_annihilation_level_range.pdfIn PDF document text
    • https://s3.amazonaws.com/benuka/pezunimavidiso.pdfIn PDF document text
    • https://s3.amazonaws.com/rudelazifizuvo/converse_plataforma_blancas_altas_rebajas.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_off0000d92c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD92C 5032 bytes
SHA-256: ff1e63f5250402c505fc63c9c9f6ba1fa9eeedb39cf90abf10b0e24373b3b668
font_01_sfnt_off0000ea63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA63 10256 bytes
SHA-256: ef33271e84590852c31ad3ca56234cc8f341dbdfe06e3b54bb840ed1fa980601