Malicious PDF — malware analysis report

Static analysis result for SHA-256 325d44584f0461fc…

MALICIOUS

PDF

63.3 KB Created: 2021-02-19 04:43:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 2ec8996de671bbbcc6b8ce2c7a69a668 SHA-1: 972578f88135193a574b67e433434dba3dca1c8f SHA-256: 325d44584f0461fcaadd13cd03fa2aaceb5588722dfb58efbb37d3faa114d818
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://jottigo.ru/wix?keyword=dancing+on+the+moon+isla+vista+worship+lyrics PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4414498/normal_60248cd958b8f.pdfIn PDF document text
    • https://cdn.sqhk.co/nilesatu/ejbgdgj/vegoxitokofuzilinejagi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471475/normal_5ff9f2b0b3bb5.pdfIn PDF document text
    • https://cdn.sqhk.co/nusideja/bXJ3Fjc/who_is_the_dogman_song.pdfIn PDF document text
    • https://cdn.sqhk.co/dixejetafap/HGiGoij/piwaxufowaw.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4457849/normal_5fcb634fc082a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454558/normal_5fdf6612a6b0d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412778/normal_5fe6128772738.pdfIn PDF document text
    • https://cdn.sqhk.co/wijelukifap/TmjcjaO/41896681677.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421983/normal_5fecae7c85163.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/fekazudabo/41591583906.pdfIn PDF document text
    • https://s3.amazonaws.com/wewiro/nebefusawivuvo.pdfIn PDF document text
    • https://s3.amazonaws.com/tasufagijaremo/backflip_madness_full_version.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_off0000bc06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC06 5600 bytes
SHA-256: b38b336667f5868740f2df8b40810ad5c7c19fa068860285014351b05212ebfd
font_01_sfnt_off0000cf0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF0B 9776 bytes
SHA-256: e39cd6d50467b71ae43cb80e30e3ea4279853aa5ef9990f824e5b0d7855d63f3

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