Malicious PDF — malware analysis report

Static analysis result for SHA-256 550703bdd2062c41…

MALICIOUS

PDF

76.0 KB Created: 2021-02-16 22:05:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-04-04
MD5: 2ac5305acb823c8c182f396018b08839 SHA-1: 3c110ac6fab0883204877dfc5caf8c9e1b0fc4bb SHA-256: 550703bdd2062c41e9fdae623f87194bb0bff8708be42a3a1680b55d78056a19
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jacksth.ru/strik?utm_term=best+wireless+keyboard+mouse+combo+uk PDF link annotation
    • https://s3.amazonaws.com/bufipevuril/pibilabiremanegor.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4461211/normal_60038730b2d8a.pdfIn PDF document text
    • https://cdn.sqhk.co/zapiseniw/c4gf7ib/blue_light_glasses_mens_near_me.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383912/normal_60136a09887f8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4373509/normal_5fff4efd7bf7c.pdfIn PDF document text
    • https://s3.amazonaws.com/banula/datojewufasuzudijov.pdfIn PDF document text
    • https://xereritotof.weebly.com/uploads/1/3/1/0/131070340/a1312cf8c.pdfIn PDF document text
    • http://swiss-gear.shop/executive_assistant_objectives_for_performance_reviewng6lk.pdfIn PDF document text
    • https://pizavanaxuvilu.weebly.com/uploads/1/3/5/3/135386491/vuzivitideliw.pdfIn PDF document text
    • https://dakufosaxem.weebly.com/uploads/1/3/4/7/134771611/2e4629ed69d.pdfIn PDF document text
    • https://xaniwunedevivat.weebly.com/uploads/1/3/4/4/134470123/5efb7002c4c7b6.pdfIn PDF document text
    • http://podarokinsta365.site/92888446243sr78j.pdfIn PDF document text
    • https://s3.amazonaws.com/tamobalasu/android_tv_box_network_settings.pdfIn PDF document text
    • https://s3.amazonaws.com/zumomasugipeno/wigasejom.pdfIn PDF document text
    • https://jibokogemi.weebly.com/uploads/1/3/4/7/134767321/7418fa.pdfIn PDF document text
    • https://s3.amazonaws.com/sefiwegegagu/vitamin_b17_sources.pdfIn PDF document text
    • https://direwuberegenis.weebly.com/uploads/1/3/4/3/134361890/6959088.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379485/normal_5fde2ef659a6f.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000ebf0.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000ebf0.bin)
    • 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 extracted file (font_00_sfnt_off0000ebf0.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ebf0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBF0 5532 bytes
SHA-256: 463b664d9505ba667f4cd70213b8474973a36c9f36b9ae257b404a116968aa35
font_01_sfnt_off0000fec0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEC0 10588 bytes
SHA-256: 31773cd31f9f28ec90d2382f0379535649f93e0ab3462f40c4ad089944677003