Malicious PDF — malware analysis report

Static analysis result for SHA-256 6db95df054486811…

MALICIOUS

PDF

70.6 KB Created: 2021-02-21 11:51:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 2e15fc32f6e3528c987b035b948fa80a SHA-1: b6d9c3074d52b50d5be119a13ecdd6dd869e9d35 SHA-256: 6db95df0544868115f57a4bff03b443263eb68b9d71e39ae1c37f6e2db014c04
184 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://crophysi.ru/wb?keyword=thompson%20center%20hawken%20flintlock%20parts In PDF document text
    • http://lnstagramverifiedbadge-media.com/how_do_i_turn_on_my_ge_oven765xq.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459060/normal_60055d6fa8814.pdfIn PDF document text
    • http://tradestaroffice.com/boris_cyrulnik_booksk9vka.pdfIn PDF document text
    • http://fisutef.iblogger.org/52924831908.pdfIn PDF document text
    • http://persequenteamsohbet.com/jebozeguvinikagobipe19i6a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418180/normal_60261c48e1fda.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4444114/normal_5ff5cd6c19301.pdfIn PDF document text
    • http://usejus.pro/assassin_s_creed_origins_trophy_guide_powerpyxtp3up.pdfIn PDF document text
    • http://www-sfr-fr-monespace.com/zubofalinevezuhfgn9.pdfIn PDF document text
    • http://promoocaoameericanas.com/interior_design_basics_bookoe1km.pdfIn PDF document text
    • http://legendnat.space/distant_worlds_universe_race_guidenl1ic.pdfIn PDF document text
    • http://jopkapopka.online/84562540854m3f8a.pdfIn PDF document text
    • http://womenit.space/7456894284c0zhx.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470828/normal_5fd80672a7430.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bepenaguvofiw.epizy.com/kitemugeso.pdfIn PDF document text
    • http://xidijunuv.rf.gd/encounter_shankar_mp4_song.pdfIn PDF document text
    • https://s3.amazonaws.com/legobegutulo/kader_kuler_bou_bengali_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/xokebore/wajelomipazaja.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_off0000d819.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD819 5360 bytes
SHA-256: 93227681d51c57f6744e8601288409aba56677662d4e55007d0df51bb7b17ee0
font_01_sfnt_off0000ea3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA3A 10308 bytes
SHA-256: 8643c085f9c6fa1d9ce0260a7390e7bd2cdbe7532155088c93688802a65a88fd