Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8fbad717dee4af5…

MALICIOUS

PDF

78.3 KB Created: 2021-01-26 11:16:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: f6d9c2cefe5cbb69aa9d4527384f0bf1 SHA-1: ddef41ab8026b479e2fddd802a78b9f659256145 SHA-256: e8fbad717dee4af5da067bc0a56b7d6cda6fb0a872c1fbf83267322b76c123d5
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://bologen.ru/aws?utm_term=extracting+dna+from+banana+lab+report PDF link annotation
    • https://tefovaxosu.weebly.com/uploads/1/3/1/1/131163863/2a92ee5.pdfIn PDF document text
    • https://cdn.sqhk.co/lelabepena/jjdfQgf/viral_video_viral_khabar.pdfIn PDF document text
    • http://fastpysystem.online/87018032624vo1nj.pdfIn PDF document text
    • https://cdn.sqhk.co/wibononuve/hd4aieJ/dreamworks_universe_of_legends_characters.pdfIn PDF document text
    • https://cdn.sqhk.co/nuvurero/aHgduLX/12073187134.pdfIn PDF document text
    • http://prizinsta24.space/sonic_adventure_dx_metal_sonic_storysudv3.pdfIn PDF document text
    • http://yozi.store/33824240632r6de0.pdfIn PDF document text
    • https://cdn.sqhk.co/sizafutito/igia8ji/82739024230.pdfIn PDF document text
    • http://all-system7.club/92092122253micoj.pdfIn PDF document text
    • https://komibaxes.weebly.com/uploads/1/3/1/6/131606619/2887944.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nudenagazosizav.epizy.com/bexufutakodikavikaratel.pdfIn PDF document text
    • https://s3.amazonaws.com/pazovugal/stipulated_judgment_form_divorce_california.pdfIn PDF document text
    • http://ribaxekag.epizy.com/pogil.pdfIn PDF document text
    • https://s3.amazonaws.com/xefezesebusu/united_way_of_king_county_annual_report.pdfIn PDF document text
    • http://gizimup.epizy.com/xasegawibitodezuwuxepaz.pdfIn PDF document text
    • http://wedizakur.epizy.com/subus.pdfIn PDF document text
    • https://s3.amazonaws.com/kizugokofo/fixed_mindset_vs_growth_mindset_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/fuwawibu/bizhub_185_user_manual.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_off0000f4bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4BF 5460 bytes
SHA-256: 0a144c1986d61f21dccf821cb5cdbabbcd067c255fdad0dc87af8f948af99357
font_01_sfnt_off00010744.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10744 10772 bytes
SHA-256: 5887057c1d265617edb9a899d8815711d05ad9fdd2fbaf74561cf08dec3ae8fd