Malicious PDF — malware analysis report

Static analysis result for SHA-256 8754cb52d07d0a35…

MALICIOUS

PDF

71.7 KB Created: 2021-03-02 12:12:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: b83f7717b85af78af9fc74eda71df781 SHA-1: af963fff9ddad0298d273fc6adc474fc4e0aa18c SHA-256: 8754cb52d07d0a35c02d91634463938d1c321dc7de30deebe16271baf16d8a7c
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://xezojetit.ru/award?keyword=nanostation+loco+m2+setup+bridge PDF link annotation
    • http://gamukanemafutu.mywebcommunity.org/practice_math_word_problems_for_2nd_graders.pdfIn PDF document text
    • https://cdn.sqhk.co/jugomuzuteb/jSgjRha/90544374844.pdfIn PDF document text
    • https://cdn.sqhk.co/solijisivono/VgeDIhf/linea_del_tropico_de_cancer_en_mexico.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404121/normal_6007710ba7205.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369164/normal_5fc57bda039d5.pdfIn PDF document text
    • http://sozaxesugoj.mywebcommunity.org/french_horn_beginner_book.pdfIn PDF document text
    • http://betizekaxu.getenjoyment.net/lg_inverter_error_code_ch_29.pdfIn PDF document text
    • http://detonic-official.website/8796127306ovx1j.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447912/normal_5fec310eb152b.pdfIn PDF document text
    • https://cdn.sqhk.co/latosagax/bON8jgn/92092429907.pdfIn PDF document text
    • https://cdn.sqhk.co/jisaside/fjagvMd/to_do_reminder_app_apk.pdfIn PDF document text
    • http://tradestaroffice.com/dedoxofegixufetwt1sl.pdfIn PDF document text
    • http://vazawujuzu.sportsontheweb.net/2018_forester_2.0xt_touring.pdfIn PDF document text
    • https://cdn.sqhk.co/jabezoxujo/hjgiidr/zadoxoxipebe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tevefetilojas.atwebpages.com/the_five_love_languages_book_online_free.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_off0000dc1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC1E 5632 bytes
SHA-256: 759e02dff82c52b53fd13aaab1bd5cc87518595445795b6a39a132c84c183d10
font_01_sfnt_off0000ef2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF2A 10064 bytes
SHA-256: c96b64aacac44d3258853b874c9ba81974800202640b61ee68a433cc94875ba7