Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c07bf90f6e96be0…

MALICIOUS

PDF

68.6 KB Created: 2021-02-26 12:06:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 02d46bcdf1eb27168fbf1db28a9b1e5a SHA-1: a5dc45bc5468d210a8261fa05ce312ebcc12f1d0 SHA-256: 6c07bf90f6e96be07eb04fe69b72dad3cc0aab7f72a7dc74e16a49d2b213c146
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://mezovuduw.ru/award?keyword=microsoft+word+download+for+mac+student PDF link annotation
    • http://bluebadge-support.com/creed_2_russian_translations7pih.pdfIn PDF document text
    • http://fefiwizam.sportsontheweb.net/59586281081.pdfIn PDF document text
    • https://janirakuvofubej.weebly.com/uploads/1/3/4/7/134734148/3228769.pdfIn PDF document text
    • https://cdn.sqhk.co/livisade/ehbgfkR/zixibesimu.pdfIn PDF document text
    • http://nepufikusugepa.iblogger.org/16550936978.pdfIn PDF document text
    • http://sijubuwejipamun.mywebcommunity.org/13023237109.pdfIn PDF document text
    • http://in-step.shop/3226316448439o2h.pdfIn PDF document text
    • https://cdn.sqhk.co/xivumatozo/SRvJ5jb/ketuvoz.pdfIn PDF document text
    • http://kopuvimu.scienceontheweb.net/61739721119.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/rafiralexezol/data_analytics_google_sheets.pdfIn PDF document text
    • http://nejesezape.myartsonline.com/livro_propaganda_edward_bernays_em_portugues.pdfIn PDF document text
    • http://kivozusemu.atwebpages.com/what_are_the_hse_top_5_health_risks.pdfIn PDF document text
    • https://s3.amazonaws.com/jezekemunidup/sutegijaregutuzutubu.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_off0000d1a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1A7 5264 bytes
SHA-256: 5d23caf577404714b684f6ffd291ef5d76b5c7c75434e7e1814be6d7a9671426
font_01_sfnt_off0000e394.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE394 10024 bytes
SHA-256: 7d3dc53dee5afab053bcad06f65e1ff6b473e273b4ca64f36bcdccae7fa88241