Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd9f45437a41a023…

MALICIOUS

PDF

68.5 KB Created: 2021-02-14 14:32:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 926f00bf85ca526f9e9728f462ffd3a5 SHA-1: 77d0bc788b92f62c84271f74fe9eacdaa984e4a5 SHA-256: cd9f45437a41a023c10411d12457e63ef9a83ad480e9a54708a8019dc5a3f02f
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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.
  • 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://seumenha.ru/wix?keyword=boston+red+sox+preseason+schedule+2020 PDF link annotation
    • http://dom-bita.org/knock_knock_endingjrl84.pdfIn PDF document text
    • https://cdn.sqhk.co/gikunixa/fDgfPif/ratiniluna.pdfIn PDF document text
    • http://zuvels.xyz/dream_car_racing_evo_hacked_unlimited_money3fgbl.pdfIn PDF document text
    • https://cdn.sqhk.co/subogutaze/haNojhr/hay_day_online_tool.pdfIn PDF document text
    • http://dress-russia.ru/shark_ion_robot_r87_vs_roomba_6759pnub.pdfIn PDF document text
    • https://cdn.sqhk.co/xekejegixawo/rXS7idJ/dakenefobugadilemof.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388819/normal_5ff2837c96c5b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371020/normal_5fe224acc3e56.pdfIn PDF document text
    • http://gakmancreatures.ru/soxewifurabdi6zf.pdfIn PDF document text
    • https://cdn.sqhk.co/xuxinugad/ToidoWv/ewallet_uae_contact_number.pdfIn PDF document text
    • http://greenbike.shop/open_automation_software7rrrh.pdfIn PDF document text
    • http://seedcraft.online/seven_letters_one_wordb55t9.pdfIn PDF document text
    • http://6gusevshop.space/custom_roms_for_android_tvayvk5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459631/normal_5fcc016a29244.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/mubemutolewe/code_pokemon_vert_feuille_android.pdfIn PDF document text
    • https://s3.amazonaws.com/tutapaxi/dodecahedron_template_free.pdfIn PDF document text
    • https://s3.amazonaws.com/pegebunov/computer_3d_car_racing_game.pdfIn PDF document text
    • https://s3.amazonaws.com/pibajuwi/xonanaraxubaluzetibowomuf.pdfIn PDF document text
    • http://zowujobosega.rf.gd/85382390596.pdfIn PDF document text
    • http://patenat.epizy.com/corporate_email_usage_policy_template.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_off0000ca63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA63 5552 bytes
SHA-256: 3a3c1970717391923a62dd9409064b456664a6da244f7dc1d7381af69a21c87d
font_01_sfnt_off0000dd43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD43 12344 bytes
SHA-256: 5983413cbb6adbd4d76b92c47f04e199ce9408a566cfa9a182c489c1e0c7ebac