Malicious PDF — malware analysis report

Static analysis result for SHA-256 c15ca317295598ca…

MALICIOUS

PDF

70.0 KB Created: 2021-02-25 18:55:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 10380ab684768deac0868e1d7c212cee SHA-1: 0baa9bca75aa3370ea831b16afed988de7e24682 SHA-256: c15ca317295598caa6d0c49b031e7a9ac3b666b8439ee61d24c58d250b8d9e7f
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://leonvi.ru/award?keyword=what+is+smart+call+home+cisco PDF link annotation
    • http://vowujebotoza.mywebcommunity.org/xejaxabuwoxuvikiw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406481/normal_6026607d24a97.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369516/normal_5fde0e333040d.pdfIn PDF document text
    • https://zelelifejoba.weebly.com/uploads/1/3/4/3/134321633/jovinupotitap-poruroxewusuzaf-ralovuta.pdfIn PDF document text
    • http://vilopeg.xyz/98915275630re3ly.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366978/normal_6013b8bd070ee.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416789/normal_5fca3adc7e85c.pdfIn PDF document text
    • http://antileqphh.site/mavarosovejifatolivg47e.pdfIn PDF document text
    • https://cdn.sqhk.co/savageven/fhgccIg/sudoku_medium_puzzle.pdfIn PDF document text
    • http://kozidozilujivox.getenjoyment.net/wedefipizefizalakobe.pdfIn PDF document text
    • http://onatural.space/arihant_neet_booksh0edb.pdfIn PDF document text
    • http://flylovel.com/ihya_ulumuddin_al_ghazali7c7zm.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nabenejajoko.myartsonline.com/soundcraft_ui24r_manual_cz.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_off0000d670.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD670 5052 bytes
SHA-256: 1bcad1d47d12d1b29ffc24e73184f784a76ebc7516d498c085b99c9b3bd8c6ad
font_01_sfnt_off0000e77d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE77D 10476 bytes
SHA-256: 455b9c1aa7dab2f1f521c98438ca1261c759a9cf935302e762eb2d19002b30ac