Malicious PDF — malware analysis report

Static analysis result for SHA-256 7415cb9c1559a77e…

MALICIOUS

PDF

67.3 KB Created: 2021-02-26 02:50:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 1c08ac54255c18df43ad124e646f5582 SHA-1: 3fa3dffb94d3afa098f23ad14be5e8bc0b9e7217 SHA-256: 7415cb9c1559a77e45a0dbf8142f39800e2573efcf334bc3979e146105e6dc1a
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://baarspo.ru/wix?keyword=la+fitness+hillsborough+ave+tampa PDF link annotation
    • http://passive-income.ru/kenmore_70_series_heavy_duty_plus_washerp38ue.pdfIn PDF document text
    • http://reduslimitalia-official.website/53909296080pb0dp.pdfIn PDF document text
    • http://supportcopyright.net/ascending_and_descending_order_worksheets_for_grade_2m0q0f.pdfIn PDF document text
    • http://file-id.ru/mexobudavusasevolowosuvrj71f.pdfIn PDF document text
    • http://iminn.ru/oster_customer_service_hoursq8jly.pdfIn PDF document text
    • https://cdn.sqhk.co/vefoveted/DiaLgg0/64548305956.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453335/normal_602f562d71fc3.pdfIn PDF document text
    • http://trudogoliya.online/chrono_trigger_snes_cartridge_ebay8396n.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4473035/normal_5fed4367c4dd2.pdfIn PDF document text
    • https://cdn.sqhk.co/tamoravuwera/Qha0hfb/mezikosavozaloj.pdfIn PDF document text
    • http://paktum.pro/48983820060e4dlw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412895/normal_603780b0b8e1e.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/vudivuzakal/small_merge_images.pdfIn PDF document text
    • https://s3.amazonaws.com/sizabo/21838693160.pdfIn PDF document text
    • https://s3.amazonaws.com/tumuzu/lagu_mungkin_cover_feby.pdfIn PDF document text
    • https://s3.amazonaws.com/fidefofudi/13443361386.pdfIn PDF document text
    • https://s3.amazonaws.com/zuvovoxigumuz/chessbase_for_mac.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_off0000c97e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC97E 5456 bytes
SHA-256: 8d06f7048a35a112d29f8e17a8b1e9a2c392ad732bd466c2567a32bd922b349b
font_01_sfnt_off0000dbf2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBF2 10492 bytes
SHA-256: c3f37f660cf9128604c0e11feb034a85ac07a138e2bf0b05386022c443abf82c