Malicious PDF — malware analysis report

Static analysis result for SHA-256 5de5e30d27d005ec…

MALICIOUS

PDF

101.8 KB Created: 2021-02-02 06:46:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: 796db57fd80f5c1b2439b001fac84199 SHA-1: d88448a6b24771ec1b579ff8b571e9179c18e5d6 SHA-256: 5de5e30d27d005ecd63ca6e2dea9409962198141b6ea096a7d111ae8ddd33f6a
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://bologen.ru/aws?utm_term=small+pdf+reader+app+for+windows PDF link annotation
    • https://cdn.sqhk.co/derebeduno/cgjhcFB/celebrity_cruises_2020_brochure.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4372983/normal_600098c0eafb3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406771/normal_5fdc5ac7535fb.pdfIn PDF document text
    • https://cdn.sqhk.co/gimexigerub/3mTCqeE/lynx_lake_arizona_camping.pdfIn PDF document text
    • https://cdn.sqhk.co/desogepupema/Jhihbih/sovivegagijilujej.pdfIn PDF document text
    • https://cdn.sqhk.co/tatogevi/EhhyuTK/who_is_imposter_lucifer.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414500/normal_5fe6a3a5a54d8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422908/normal_5fd78878ac21c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4497687/normal_5ff2c6334f874.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465396/normal_600209678bb69.pdfIn PDF document text
    • https://cdn.sqhk.co/menasimax/heMm4bz/rutoniva.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420915/normal_5fe2131eee4b2.pdfIn PDF document text
    • https://cdn.sqhk.co/pananumujo/eOjh1ie/ludo_game_super_ludo_online_2020_gameplay.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501027/normal_5fee72ed5e57f.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/fenatagazise/can_i_view_icloud_photos_on_android.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_off00015011.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15011 5380 bytes
SHA-256: a0cfec32ca5727d7bc491f289c674a8aa447943020cbd5036af8929f376af298
font_01_sfnt_off00016257.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16257 12004 bytes
SHA-256: f2ee27124150778c5c0c8a1f63319c0991fee9b91ab16da55aa8655f1a5f144a