Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ffe734d33352fed…

MALICIOUS

PDF

63.3 KB Created: 2021-02-11 05:38:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 209c376e99561bd0421da76971ff3e79 SHA-1: e333e1f420fc1f086094b7b3403c9729138cc047 SHA-256: 2ffe734d33352fedca332b2b5ad161d84a68cc435c121f92d00f62ed336a11b9
146 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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://jacksth.ru/123?utm_term=california+collections+textbook+grade+10 PDF link annotation
    • https://somirurawepaf.weebly.com/uploads/1/3/1/3/131381963/e0c95eb78b0785.pdfIn PDF document text
    • http://bestsalestoday.xyz/26403676631y1teq.pdfIn PDF document text
    • https://cdn.sqhk.co/junigofulum/sie7fhg/iphone_file_manager_for_pc_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/pajerelo/ieBjhko/sitka_mountain_pants_for_sale.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409103/normal_600388686ee5f.pdfIn PDF document text
    • https://cdn.sqhk.co/towinomer/iaifJfx/86234514914.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413469/normal_6021cfc76cd23.pdfIn PDF document text
    • https://tafiweva.weebly.com/uploads/1/3/5/9/135993394/suxuvaximilege.pdfIn PDF document text
    • http://nigma24invest.online/85833401897qkqhd.pdfIn PDF document text
    • https://cdn.sqhk.co/suzeboxiwo/IGjfheN/appdynamics_api_synthetic_monitoring.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476443/normal_5fd5fbaf13aad.pdfIn PDF document text
    • http://udilische.club/lock_screen_hd_wallpapers_for_androidjzbzu.pdfIn PDF document text
    • http://logmeinnow.xyz/59483754472w56ug.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/vuraradaso/tuduminigabuzevalaza.pdfIn PDF document text
    • https://s3.amazonaws.com/geraromu/51764482552.pdfIn PDF document text
    • https://s3.amazonaws.com/fuzafuzeruwit/guidelines_for_developmental_coordination_disorder_uk.pdfIn PDF document text
    • https://s3.amazonaws.com/feborobegibew/dogev.pdfIn PDF document text
    • https://s3.amazonaws.com/mogedozara/17785782382.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_off0000bc14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC14 5560 bytes
SHA-256: 88d823ea3b72cef8950653ae8a3543a110e1ac04ee9cf29de7b5c96c0857b7d8
font_01_sfnt_off0000cf10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF10 9668 bytes
SHA-256: 6e2ecf442131e03ae342b469f4af5387bbdd22b0bc72a98cb11174cf846fd756

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