Malicious PDF — malware analysis report

Static analysis result for SHA-256 3adcb89ac1c98d4e…

MALICIOUS

PDF

72.0 KB Created: 2021-03-02 05:39:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 493262c13e58b834d55d48b760d1a048 SHA-1: a0bb2f0c7b6b4af90f26196eb8007bdd6bc375b9 SHA-256: 3adcb89ac1c98d4ec3171a3369c3999d34f6b28cbb1554892e46b312daf79eab
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://botokaw.ru/wix?keyword=roblox+id+code+for+oops+i+farted PDF link annotation
    • http://nebofonuve.mywebcommunity.org/70990651736.pdfIn PDF document text
    • https://cdn.sqhk.co/feduvefas/VgOhbIU/best_skiff_boat_brands.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/rudelazifizuvo/harry_potter_audio_books_amazon_uk.pdfIn PDF document text
    • http://retesatitogeli.epizy.com/tepefadufufidupuzasafinos.pdfIn PDF document text
    • https://s3.amazonaws.com/rafiralexezol/guide_vayne_top.pdfIn PDF document text
    • https://s3.amazonaws.com/wemazun/vabubek.pdfIn PDF document text
    • http://rivubutapadagar.epizy.com/56295813559.pdfIn PDF document text
    • http://jedasuzafofirif.epizy.com/adobe_audition_cs6_for_pc.pdfIn PDF document text
    • https://s3.amazonaws.com/jutenojamega/improve_handwriting_worksheets_for_adults.pdfIn PDF document text
    • https://s3.amazonaws.com/dofufiri/platform_shoes_with_goldfish_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/pazatuv/cleartrip_apps_free.pdfIn PDF document text
    • https://s3.amazonaws.com/kosipefojaw/jim_rickards_the_death_of_money_currency_wars.pdfIn PDF document text
    • https://s3.amazonaws.com/fumiposamisur/how_to_draw_resources.pdfIn PDF document text
    • https://s3.amazonaws.com/loranoduzuja/bhojpuri_song_lollipop_lagelu.pdfIn PDF document text
    • https://s3.amazonaws.com/tarajix/wofugeg.pdfIn PDF document text
    • http://kokokifutalikop.epizy.com/chicago_assyrian_dictionary.pdfIn PDF document text
    • http://satoposip.epizy.com/two_phase_simplex_method_nptel.pdfIn PDF document text
    • http://kilarosine.atwebpages.com/what_does_it_mean_when_you_dream_of_snake_chasing_you.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_off0000dd08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD08 5364 bytes
SHA-256: c32ba4f339d815640d941a724a0b974df4785137a8de9522c4b7a3182f23c6e7
font_01_sfnt_off0000ef5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF5A 10500 bytes
SHA-256: 81b20f69dfe7865c4690a2b328cb6f370bf18d8043ee448495291b4aa2669f9e