Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f8e2304e3a0cf57…

MALICIOUS

PDF

75.3 KB Created: 2021-02-26 01:06:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: d834f86750b731a3f370c7df483de476 SHA-1: f93568051fb85a7a8729a7d922fe59465636df63 SHA-256: 2f8e2304e3a0cf57c1d45380e1fa52712954b6dce21925c6355437ba15ea1c29
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/wb?keyword=what%20are%20some%20persuasive%20writing%20techniques PDF link annotation
    • http://kekijojovif.sportsontheweb.net/18308568234.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420939/normal_6027d58ed461d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4497110/normal_5fffccf468785.pdfIn PDF document text
    • http://yandex-dostav.ru/47035189661k98a2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374699/normal_5fd384ebd8f99.pdfIn PDF document text
    • http://mobufuwiwid.medianewsonline.com/8785575141.pdfIn PDF document text
    • http://indital.space/741413275616qmik.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445338/normal_603417f155cc5.pdfIn PDF document text
    • http://quinzsy-studio.design/dragon_ball_gt_a_heros_legacy_englijctql.pdfIn PDF document text
    • http://boothattendant.com/18121619932bq0xm.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/votuweroxigezog/advantages_and_disadvantages_of_capitalism_economic_system.pdfIn PDF document text
    • http://kaloruligot.onlinewebshop.net/communist_manifesto_book.pdfIn PDF document text
    • https://s3.amazonaws.com/jiguwuzobozobaz/nakivibipivebutalejazed.pdfIn PDF document text
    • https://s3.amazonaws.com/baxekojojexusol/2006_honda_odyssey_transmission_fluid_level_check.pdfIn PDF document text
    • https://s3.amazonaws.com/muxegeza/fuposubo.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_off0000e95b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE95B 5604 bytes
SHA-256: e24c38135202291f5576e392408e07fc2aac0d1ba67e3af3b7d9d3cbc5492e9a
font_01_sfnt_off0000fc5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC5D 10508 bytes
SHA-256: a1fe5e1fa811958321e37498f4ff22503f3f0b1742e56d66e197d8738bad0167