Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d2e6c774f0a527f…

MALICIOUS

PDF

73.0 KB Created: 2021-02-27 17:54:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: a245379cf6196694ed4093ac39c99674 SHA-1: 7aa112b1319cbb4295e7aaadaf4fe9a9618fa733 SHA-256: 5d2e6c774f0a527faec541acdbd8e5a5feb8d3ccb1a5f1b67fe829cb56de6830
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://fokemale.ru/award?keyword=how+to+break+open+a+sentry+1250+safe PDF link annotation
    • https://wezoduvum.weebly.com/uploads/1/3/4/0/134096245/7145054.pdfIn PDF document text
    • https://cdn.sqhk.co/wanevakaxuma/H0ibggB/tixepumuvofimiwaw.pdfIn PDF document text
    • https://vamububok.weebly.com/uploads/1/3/5/3/135317225/xizazifozuliv.pdfIn PDF document text
    • http://coins24h.com/457277406881z5vq.pdfIn PDF document text
    • https://cdn.sqhk.co/wazewiput/6yifqgg/solar_canada_conference_2020.pdfIn PDF document text
    • http://registrat.space/duck_hunter_camo24761.pdfIn PDF document text
    • http://biteroz.iblogger.org/cover_letter_template_for_retail_assistant_manager.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369911/normal_60089f5686475.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sapirilogive.epizy.com/56518975257.pdfIn PDF document text
    • http://suwepedufaresi.epizy.com/what_is_smart_siding.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_off0000e066.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE066 5672 bytes
SHA-256: 7ce788c86cab05170d9f608df6411110de6fd4f1995db3eba3ecb5428963c65f
font_01_sfnt_off0000f3e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3E4 10452 bytes
SHA-256: 71cd8800d88fe97c7f5af053ce2bfa41382ae15096ef2f6cebf518a03a6fd663