Malicious PDF — malware analysis report

Static analysis result for SHA-256 b63d5b8c100a4122…

MALICIOUS

PDF

69.5 KB Created: 2021-03-06 19:50:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: b635047683dae642616db83b527fefaf SHA-1: 1f76c253ff81fbf220c1aa6e185f03ba7a4dbdab SHA-256: b63d5b8c100a41228b7e0d525e6d65d434ad1c83e7e6e6ed637544997547f520
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://dugedepap.ru/wix?keyword=sterilite+storage+cabinet+with+drawers PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4377102/normal_5fced6136cbc7.pdfIn PDF document text
    • http://retamos.mygamesonline.org/gargle_with_apple_cider_vinegar_for_white_teeth.pdfIn PDF document text
    • https://cdn.sqhk.co/zaronafi/cHUhrKL/guide_bowmasters_tips_chest_coins_and_gems.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418199/normal_5ffdcda6e4f5b.pdfIn PDF document text
    • https://cdn.sqhk.co/bijozugetav/jijjaj1/gasunujokosa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489848/normal_5ffeff3678449.pdfIn PDF document text
    • https://cdn.sqhk.co/borefigux/cgfgjPa/marshmallow_fluff_ingredients.pdfIn PDF document text
    • http://xupokaxe.medianewsonline.com/chicago_style_capitalize_job_titles.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408599/normal_5fe8c285ce171.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455907/normal_5ff0d6d02ebf9.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/najubu/game_android_warship_battle_mod_offline.pdfIn PDF document text
    • http://titugol.atwebpages.com/libro_de_fisica_universitaria_sears_zemansky.pdfIn PDF document text
    • https://s3.amazonaws.com/bejexe/28638183620.pdfIn PDF document text
    • https://s3.amazonaws.com/xovekolamoxe/who_gets_curb_stomped_in_american_history_x.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d4a82b8a-a0f3-4edc-ac63-5ee48b638b86/74061485774.pdfIn PDF document text
    • https://s3.amazonaws.com/sezewu/pottu_amman_movie_audio_song.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e25709e8-ccb7-4c12-9ac9-9c8b2f932742/fapowosibigejobifad.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e961d4b3-fef0-488a-995e-90fe77cb3009/how_to_calculate_total_interest_paid_on_a_loan.pdfIn PDF document text
    • http://fetekovabu.onlinewebshop.net/managed_security_services_gartner_magic_quadrant_2020.pdfIn PDF document text
    • http://sorisavitekinuj.onlinewebshop.net/megufog.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e2572881-d18e-4433-bfca-56571c7ef00e/78692369697.pdfIn PDF document text
    • https://s3.amazonaws.com/xeroguru/combining_sentences_worksheet_multiple_choice.pdfIn PDF document text
    • https://s3.amazonaws.com/sugosubexez/lipiza.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b3fd0ef0-34a0-4f44-a1ff-681c50956fb0/char_broil_infrared_grills.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_off0000cfe0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFE0 5536 bytes
SHA-256: 148ad503df9f1ce0d4d9c5b7a38098cf3797abac97706ec558321a5592fefca5
font_01_sfnt_off0000e2ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2BA 10660 bytes
SHA-256: 2de9cf7eea1435d8ee291f3f18439d199d6db2a05add8e96a5c75c0608bf4b81

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