Malicious PDF — malware analysis report

Static analysis result for SHA-256 f4942b031b3784b6…

MALICIOUS

PDF

70.1 KB Created: 2021-03-13 14:23:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: f28d3879d50e6c39265789047f626d27 SHA-1: cd018f0e42f93cb7544c06d70c3a404a0da8c7d7 SHA-256: f4942b031b3784b6423809c48dc8008b9c4f7295ded63ec18d6b1ce85d860493
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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=nomenclature+of+hydrated+ionic+compounds+worksheet PDF link annotation
    • http://tapavinologo.mygamesonline.org/catalogo_avon_campaa_14.pdfIn PDF document text
    • https://jinikegubu.weebly.com/uploads/1/3/4/8/134873825/9791909.pdfIn PDF document text
    • http://zutumufedige.getenjoyment.net/pance_prep_pearls_2nd_edition_ebook.pdfIn PDF document text
    • http://bewugexujiz.iblogger.org/animeflv_app_no_oficial_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/sitopizol/dhghShf/shelter_insurance_company_reviews.pdfIn PDF document text
    • https://cdn.sqhk.co/wivenute/d63oYgd/suxajafegotukipiwovuxamef.pdfIn PDF document text
    • http://gakawisogafuga.mygamesonline.org/gatotiv.pdfIn PDF document text
    • https://cdn.sqhk.co/lexelinowe/Kgh9iaI/79601294502.pdfIn PDF document text
    • https://kerimoseb.weebly.com/uploads/1/3/5/2/135299904/xesunifolatupefaxepo.pdfIn PDF document text
    • http://xubajur.mygamesonline.org/how_to_connect_my_fitbit_versa_lite_to_my_phone.pdfIn PDF document text
    • https://cdn.sqhk.co/puvegipuros/hdjjEmH/cinderella_ballet_classical_music.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gizezusofozud.rf.gd/bleacher_report_premier_league_predictions_week_10.pdfIn PDF document text
    • http://sobavetugobi.epizy.com/tascam_dr_05_recorder.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b9259c03-4c00-4459-bad0-a8bdc59e0415/autocad_civil_3d_tutorial.pdfIn PDF document text
    • http://peledopa.myartsonline.com/2012_toyota_camry_service_manual.pdfIn PDF document text
    • http://kipejefanowisu.atwebpages.com/traxxas_vxl-3s_wont_turn_on.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4b974ce6-7d4a-4c2e-86a3-9928bc3e5bf3/how_to_connect_jam_hang_up_speaker.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3ef126bb-31c6-4c32-a3b4-04293d2959c8/alligood_nursing_theorists_and_their_work_9th_edition_free.pdfIn PDF document text
    • http://javewexo.epizy.com/free_android_games_with_best_graphics.pdfIn PDF document text
    • http://duxegejuw.atwebpages.com/fence_system_for_old_craftsman_table_saw.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_off0000d159.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD159 5620 bytes
SHA-256: 3e4e8b498d8ea682479616d1cdeaf54d15cfc3111329d2ca06f9fd9fbbcac36b
font_01_sfnt_off0000e46c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE46C 10936 bytes
SHA-256: c62fb8912ac8f6c395f174ad57ba83f0cb7abaaa2df9f671f4c439fbafde5fd8

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