Malicious PDF — malware analysis report

Static analysis result for SHA-256 b42177efe317c5ee…

MALICIOUS

PDF

69.6 KB Created: 2021-02-13 08:29:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: b97254719c991132df07b2b6287c3af4 SHA-1: 8cf52610033031b52aa7c284445477cee834b424 SHA-256: b42177efe317c5ee064d71d96a0dc8413d8dd89593255d26bdb8eb4071cc5390
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://seumenha.ru/123?utm_term=mobile+home+carport+support+posts PDF link annotation
    • https://muzitotixigo.weebly.com/uploads/1/3/1/4/131407705/7342dca4c.pdfIn PDF document text
    • http://busforpay.online/28559826675294tg.pdfIn PDF document text
    • http://accueilcmb.com/munazuzumobuwiminudozib7abdp.pdfIn PDF document text
    • http://hookup153.online/transformers_autobot_commander_optimus_prime0nala.pdfIn PDF document text
    • http://life50it.pro/chinese_song_video1avkt.pdfIn PDF document text
    • http://grizhoff.ru/search_query_in_sqlite_database_android3blgn.pdfIn PDF document text
    • http://stikc.xyz/country_music_70s_80s_and_90s08xwl.pdfIn PDF document text
    • https://cdn.sqhk.co/lituxopevuk/hcijicf/beef_packer_margins.pdfIn PDF document text
    • https://rupubonu.weebly.com/uploads/1/3/0/7/130739332/zusujonalo.pdfIn PDF document text
    • http://uscreditreport.info/android_studio_api_vs_implementationcz9yv.pdfIn PDF document text
    • http://about-central.com/dakikaguxupawobawovxas7p.pdfIn PDF document text
    • https://cdn.sqhk.co/linewebozid/enEFDkm/jekido.pdfIn PDF document text
    • https://cdn.sqhk.co/pisimebuziz/cfgWcgj/swat_cast_luca.pdfIn PDF document text
    • http://cmb-societe.com/chopping_board_colour_chartlmre0.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/xozeb/displacing_indigenous_peoples_questions_and_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/fedufiporara/gasasejinibepojozato.pdfIn PDF document text
    • https://s3.amazonaws.com/xoxaneral/fukekerosakupo.pdfIn PDF document text
    • https://s3.amazonaws.com/nafibanefexex/353017586.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_off0000d3dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3DD 5316 bytes
SHA-256: f84d26429c18452f03699bf1e3111e024c8f99bc6bdd39dde0b1f5c20b0490c5
font_01_sfnt_off0000e5c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5C8 10388 bytes
SHA-256: 52c31fabd7d4fa59295183694622c8b9feab77c88adad3f4b5062482511a372d