Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7c1df9fccb5ecf4…

MALICIOUS

PDF

71.4 KB Created: 2021-02-15 07:31:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 920937081089230f1c4e534785eee183 SHA-1: f00fa9625f38db672f78a6e96fe654b5dc9e9623 SHA-256: f7c1df9fccb5ecf4a9381ace9d7c0d5d0a8d2dc873bf61c8d5bc7f6bd640fa75
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://maypoin.ru/wix?keyword=showbox%252Ffree+movies+online+android PDF link annotation
    • https://cdn.sqhk.co/notizejamebo/jhWlwhh/88631130686.pdfIn PDF document text
    • http://reflectionss.space/joxevogafumunukq953m.pdfIn PDF document text
    • https://cdn.sqhk.co/wanadujogo/eK4G4jh/mosquito_helicopter_2_seater_for_sale.pdfIn PDF document text
    • https://cdn.sqhk.co/gupuwiwi/jaAichd/mutant_creatures_addon_bedrock.pdfIn PDF document text
    • https://cdn.sqhk.co/pujapipiwat/gjSiaib/84360351840.pdfIn PDF document text
    • http://grusha.space/baxosozitigmthvm.pdfIn PDF document text
    • http://gutprod.xyz/pelicula_coco_completa_en_espaol_descargar6itah.pdfIn PDF document text
    • http://vas-rem.ru/job_full_form_bengaliizhig.pdfIn PDF document text
    • http://kumorafeg.iblogger.org/gijup.pdfIn PDF document text
    • http://zibujedi.iblogger.org/wimaxajutakoz.pdfIn PDF document text
    • https://cdn.sqhk.co/wefonasifaza/gMjiifi/gokip.pdfIn PDF document text
    • https://cdn.sqhk.co/musutalivun/iiii6ha/is_service._comms._yahoo._net_legitimate.pdfIn PDF document text
    • http://shoplus.info/perfect_world_mobile_eidolon_list432nl.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dimegebewode.epizy.com/14127677767.pdfIn PDF document text
    • http://jebunojas.epizy.com/69040794693.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_off0000daa3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAA3 5644 bytes
SHA-256: a6906137880f8ddced9f62ee25b194e1d726f41bce247cc1a3b89b90e22db2ca
font_01_sfnt_off0000edcc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDCC 10336 bytes
SHA-256: 8250edf97d8908361c2a1d96464305f0892733fc034bbd86ce621e55a6427131