Malicious PDF — malware analysis report

Static analysis result for SHA-256 012a63ff2b6b23c2…

MALICIOUS

PDF

70.3 KB Created: 2021-02-11 16:15:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 66a85dc0e622a8d155faab36e26298de SHA-1: 3a8e4b1ea7436e2b6387e4a8986644f4eae54774 SHA-256: 012a63ff2b6b23c23165630dd1b7c8d46234decb9ecd0e15f052d1d7b913e25f
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://baarspo.ru/wix?keyword=dalton%2527s+law+problems+worksheet PDF link annotation
    • https://cdn.sqhk.co/kapimetavis/VjieicZ/libby_by_overdrive_kindle_fire.pdfIn PDF document text
    • http://rp-youtube.fun/mujirazusizenaj0s0t.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4377407/normal_5ffab507d1452.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385216/normal_5fe76a26c9b28.pdfIn PDF document text
    • https://cdn.sqhk.co/kerikone/EhghdMZ/wiwilemozowazerudi.pdfIn PDF document text
    • http://ketotreno.buzz/cheat_engine_android_plants_vs_zombies30pwv.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418381/normal_5fe5a5869c0cb.pdfIn PDF document text
    • http://magic-spring.com/lesson_plan_template_college_teacherssbdm1.pdfIn PDF document text
    • https://cdn.sqhk.co/rinugezig/m87hjjc/how_to_play_42_dominoes_with_2_players.pdfIn PDF document text
    • http://pochta-24.cc/myth_defense_2_dfzkho2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4372399/normal_5fcc52deae1cb.pdfIn PDF document text
    • https://cdn.sqhk.co/giganopof/egfMCig/grail_knight_talents.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/dalava/bitsler_bot_v9._0.pdfIn PDF document text
    • https://s3.amazonaws.com/libusamagowuvo/51153878770.pdfIn PDF document text
    • https://s3.amazonaws.com/jiguwuzobozobaz/jio_vs_airtel_speed.pdfIn PDF document text
    • https://s3.amazonaws.com/rewepalazamiso/cieem_ecia_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/paxivogedewilu/jinovalulewukaxepuzemejux.pdfIn PDF document text
    • https://s3.amazonaws.com/toguvaju/jotof.pdfIn PDF document text
    • https://s3.amazonaws.com/gadumagabusodel/general_anesthesia_procedure.pdfIn PDF document text
    • https://s3.amazonaws.com/takebemanijewok/90159336083.pdfIn PDF document text
    • https://s3.amazonaws.com/purufiz/bemix_fact_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/fapaga/angular_5_form_post_example.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_off0000d35f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD35F 5388 bytes
SHA-256: 0929e280ccc16b71aeb7812ce019f9eb3043ac43fda5687d98e3a00b6752f137
font_01_sfnt_off0000e59f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE59F 11704 bytes
SHA-256: 633182c2a225aa31227db960906a9e318ec8c292915c776ee8dce555b6fe3891

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