Malicious PDF — malware analysis report

Static analysis result for SHA-256 55055f52b79623ff…

MALICIOUS

PDF

70.4 KB Created: 2021-01-31 20:23:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-04-04
MD5: e707c617e7dc4fb7d03fb85ba6f7bf9a SHA-1: a60ab504ae99a3b731a55fb9415bddbcf986f997 SHA-256: 55055f52b79623ff5107fafbe68da20e7d581a9616950d5861e3c26cf320094e
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://s3.amazonaws.com/regovadeje/akiba_s_trip_undead_undressed_guide.pdf In PDF document text
    • https://s3.amazonaws.com/metakibeme/accident_incident_report_form_example.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408170/normal_5fe454ded672a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387061/normal_5fc59613b2eb5.pdfIn PDF document text
    • http://dfwshootersupply.com/my_dolphin_show_game_76jf7j.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4445541/normal_5ffa1b2660f6c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368506/normal_5fe8ca706db52.pdfIn PDF document text
    • https://s3.amazonaws.com/luxelula/adjetivos_en_ingls.pdfIn PDF document text
    • https://s3.amazonaws.com/wizitifowubux/amtech_prodesign_guide.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454167/normal_5fd17a899d84e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384820/normal_5fe64394990a6.pdfIn PDF document text
    • https://s3.amazonaws.com/penale/dell_compellent_sc220_manual.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449605/normal_5feb356c1d908.pdfIn PDF document text
    • https://s3.amazonaws.com/gezejoputiwinu/bally_bally_pakistani_song.pdfIn PDF document text
    • http://zespodsvetkoy.site/list_of_chan_boardsuohlu.pdfIn PDF document text
    • https://s3.amazonaws.com/muvevanepen/ct_guided_pubic_symphysis_injection.pdfIn PDF document text
    • http://rodsfish.club/75793312422gplgt.pdfIn PDF document text
    • https://s3.amazonaws.com/nupotukig/fipijovutoripobawafapiju.pdfIn PDF document text
    • https://baarspo.ru/123?utm_term=port+richmond+high+school+phone+numberPDF link annotation
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000d7ff.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000d7ff.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_off0000d7ff.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d7ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7FF 5420 bytes
SHA-256: cd1b76f08e689565e36106a2a64922b0acefe4033c031e7c8d9792f4131ab004
font_01_sfnt_off0000ea3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA3E 9972 bytes
SHA-256: ccad6176214f3856a445ab74bad34fe62256fe5e1b6d721707178700aba9ada7