Malicious PDF — malware analysis report

Static analysis result for SHA-256 65549f863681688a…

MALICIOUS

PDF

70.5 KB Created: 2021-02-02 20:29:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 509b07030ba1ca4d629d9f3330740981 SHA-1: 383460aff8cdbb4d1e5aa3a2d3f7592978118e20 SHA-256: 65549f863681688aaedd359ad7883035b3f5b76edf9d509733054012d1481155
136 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
  • 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://maypoin.ru/aws?utm_term=calibre+de+los+conductores+electricos+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4369305/normal_5fe64057183ee.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403936/normal_5ffbfd5d19a44.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367273/normal_600fd2a48c1c3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408476/normal_5fc6aa7965b36.pdfIn PDF document text
    • https://cdn.sqhk.co/fuzomorikat/hd8shea/concrete_genie_game_ps4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388157/normal_5ff2bf0c2d6b3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470532/normal_5fed3fd1d9400.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4390382/normal_6004c27b19435.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422645/normal_5fe2e6799d481.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387817/normal_5ff1807bb3b71.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4491927/normal_5fed819861264.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384472/normal_5fca75e0e783b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zexizel.epizy.com/happy_birthday_duet_sheet_music_piano.pdfIn PDF document text
    • http://sonisan.epizy.com/poxugijizodaz.pdfIn PDF document text
    • http://xefobimulekojuw.epizy.com/mumaboki.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_off0000d4fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4FC 5196 bytes
SHA-256: bbc980c210668c364b9c3f716bb68d703a47cf2117d2ef94c1bdfd16e903634b
font_01_sfnt_off0000e6a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6A4 11216 bytes
SHA-256: f5ae7effe2ac3796dff42e2f090c7d45bc3228fa14879919a1c9173da7c6bcd1