Malicious PDF — malware analysis report

Static analysis result for SHA-256 eaf50228c7c5c6c3…

MALICIOUS

PDF

71.6 KB Created: 2021-02-27 10:36:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 848785d251920432cab22d6c9202d363 SHA-1: 305be81932f2963750e8b1d04f31067a55294ef7 SHA-256: eaf50228c7c5c6c3d19640f19038732205edafe3f661f0ac6821141dce81f82f
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/wix?keyword=ronja+the+robber%2527s+daughter+ebook PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4424349/normal_5fcc6201ea858.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421476/normal_601ae1b721285.pdfIn PDF document text
    • http://ca-manalapan.space/pokemon_x_walkthrough266g3.pdfIn PDF document text
    • http://ewop.space/kitesisetibokowemarufuluu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447434/normal_60217eafbd092.pdfIn PDF document text
    • http://lnstagramverifiedbadge-media.com/46524196256c60z9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489983/normal_6032b13f930f0.pdfIn PDF document text
    • http://qrastenmap.online/seamless_bible_study_bookjjt18.pdfIn PDF document text
    • http://investorlands.ru/ampicilina_sulbactam_dosis_pediatrica52cd9.pdfIn PDF document text
    • http://netewe8.xyz/what_does_the_bible_say_about_the_dead_coming_back_to_visit2ujzb.pdfIn PDF document text
    • http://geosen.net/rizuporapaz69v7s.pdfIn PDF document text
    • http://smeh-mif.space/47836409429s7e37.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446394/normal_600e4ffef1933.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/banula/7703764298.pdfIn PDF document text
    • https://s3.amazonaws.com/nezanurugega/vaporado.pdfIn PDF document text
    • http://silagumurifexo.epizy.com/odia_mix_dj_song_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/nosepevozux/golatokemapubop.pdfIn PDF document text
    • https://s3.amazonaws.com/dudujopixejikug/dekajavulemakogevuf.pdfIn PDF document text
    • https://s3.amazonaws.com/fajeloninesitel/nerejilugez.pdfIn PDF document text
    • https://s3.amazonaws.com/pajeriramal/agrometeorology_books_free.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_off0000dbf8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBF8 5376 bytes
SHA-256: 1821dc426fb6ba526712f695a6538cda825c665180e55244a4c7377818df5b25
font_01_sfnt_off0000ee45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE45 10184 bytes
SHA-256: d9cf804b30dd530423043a45769733d71e8b3b0497db46f33dc0a5c8aeacda72