Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b38d234b96d096d…

MALICIOUS

PDF

76.6 KB Created: 2021-02-07 20:39:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 9ce0262d06a01ecd670960cf9ada86bc SHA-1: 1c02a34da6158f407e9ac1836e52d0b75b6cd1c1 SHA-256: 3b38d234b96d096d382a5e16d5304e9d024fbe8600adf12022ad25575cb116d4
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://druttle.ru/wb?keyword=mazda%20android%20auto%20retrofit%20cost PDF link annotation
    • http://krokoboko6.xyz/18662095518j16d5.pdfIn PDF document text
    • https://cdn.sqhk.co/vozofugova/wJQgeJo/vegetable_curry_ninja_foodi.pdfIn PDF document text
    • https://cdn.sqhk.co/zonurubo/iuqAt30/angie_s_list_service_providers.pdfIn PDF document text
    • https://cdn.sqhk.co/farafakilof/Aja2Agf/jilisofozopatodamus.pdfIn PDF document text
    • http://naturaitalia.space/85626439067fxjx8.pdfIn PDF document text
    • https://cdn.sqhk.co/simizekovogi/dpgdIaB/3d_printed_gun_school_shooting.pdfIn PDF document text
    • https://cdn.sqhk.co/naxusepimosa/ghajfgf/foruvopomojex.pdfIn PDF document text
    • http://tdsevsvet.ru/probability_distribution_questions_and_answers4pj07.pdfIn PDF document text
    • https://cdn.sqhk.co/jimumakevaji/inhijcO/happy_birthday_cake_with_photo_edit_for_boy.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/levovod/cities_skylines_loading_screen_mod_report.pdfIn PDF document text
    • https://s3.amazonaws.com/farezelof/65461829372.pdfIn PDF document text
    • https://s3.amazonaws.com/woneketelak/gasteracantha_cancriformis_common_name.pdfIn PDF document text
    • https://s3.amazonaws.com/mexavofezoxi/74011183121.pdfIn PDF document text
    • https://s3.amazonaws.com/figugipopar/chatous_apk_2019_hack.pdfIn PDF document text
    • https://s3.amazonaws.com/penefelomiju/41923923255.pdfIn PDF document text
    • https://s3.amazonaws.com/satudifin/antropoloji_ders_notlar.pdfIn PDF document text
    • https://s3.amazonaws.com/sigobija/fimipamibafu.pdfIn PDF document text
    • https://s3.amazonaws.com/bitizopovopaso/instagram_photos_high_resolution.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_off0000eeb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEB4 5036 bytes
SHA-256: 3ce36c7e71fae7298db301592e3f79bec44ddf8842fa9d832ce47ecbdc84b399
font_01_sfnt_off0000fffa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFFA 11024 bytes
SHA-256: dd01e08dc1e93ac7843712892b6daf0c22c4e3a2da526c62ba2b62ddc372ad5f