Malicious PDF — malware analysis report

Static analysis result for SHA-256 a848469001c13128…

MALICIOUS

PDF

72.4 KB Created: 2021-02-26 00:58:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 8610fd448873c87e6c86668afeacf751 SHA-1: 3392c9fee7438c01abc4d786aef0c8be722c2bdc SHA-256: a848469001c1312877d685e41394b2a3c74cac114109a5ba9c44bcc31d2a1b5c
144 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://jacksth.ru/wix?keyword=boomwhacker+play+along+pirates+of+the+caribbean PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4373778/normal_5fd21c26df6b3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501042/normal_6008c054ccf4b.pdfIn PDF document text
    • http://detonicro.website/daguvagekinudezodatanikebwfir.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370317/normal_5ff8b7a60d14e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4468270/normal_602bf5d79a8aa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455886/normal_5fcdadf0a83d4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500679/normal_603155712edeb.pdfIn PDF document text
    • http://iceteas.space/how_does_finnick_die_in_the_hunger_games_catching_fireiwp6q.pdfIn PDF document text
    • http://topstop.site/best_cheap_android_car_stereo_2019ry2ry.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454677/normal_5fda476286253.pdfIn PDF document text
    • http://tonedomopoja.scienceontheweb.net/krups_nespresso_coffee_machine_spare_parts.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4493209/normal_5fe4b73c2751c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481406/normal_5fce9bd56d636.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sajomapujozokux.onlinewebshop.net/bopoludete.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_off0000dd76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD76 5876 bytes
SHA-256: 9aaa712a73003ad838a500b11ef2000aea52faec87e14aaed632fc56805e4afe
font_01_sfnt_off0000f167.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF167 10204 bytes
SHA-256: 9b9ea6091fe1c9aa7db4f7120014fcf374ffad62d23551d790eeaac9552172ea