Malicious PDF — malware analysis report

Static analysis result for SHA-256 e40cc23fd39299fb…

MALICIOUS

PDF

71.5 KB Created: 2021-03-05 08:04:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 73363daa9db274634e19ee70266b53b4 SHA-1: abb7e1172ff9b0ea5e27c97aa3663e782b4ebe8b SHA-256: e40cc23fd39299fb08e071c80b6312d20a09de6dda81f9e3f893e38e0fdaa6b7
126 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
  • 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://resalured.ru/wix?keyword=clover+hill+hs+football PDF link annotation
    • https://cdn.sqhk.co/xibetevoxaj/Cgfhbd3/asistencia_uber_mexico_telefono.pdfIn PDF document text
    • https://cdn.sqhk.co/wipedekis/eTMnjhZ/61685118497.pdfIn PDF document text
    • https://cdn.sqhk.co/tezofugowura/gjBhjwS/vuxavedezinoma.pdfIn PDF document text
    • https://cdn.sqhk.co/javomekoru/ibaKVam/one_calendar_month_notice_definition.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/d562687f-7a24-4773-b74c-34749820312e/21804549078.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d68197f1-6854-4bcb-866f-aca9dbc1b35b/biboxoj.pdfIn PDF document text
    • https://94aa8f26-b07a-4c24-bdb4-4112657565c9.filesusr.com/ugd/37428b_638e9937a40b46fc9786ab70f4ea8582.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/suxiweke/20282270524.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c2a0820c-132b-4e73-ae3a-03b7b62afeb4/snow_white_with_the_red_hair_season_2_episode_10_english_dub_facebook.pdfIn PDF document text
    • https://s3.amazonaws.com/nafoxuda/assoluto_mod_apk_offline.pdfIn PDF document text
    • https://aee666f7-65d2-4416-8089-42e5bd85255d.filesusr.com/ugd/c4036c_607cfd28db0a414787ff40f4c1c2d104.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/gofilafixu/car_lease_calculator_excel_spreadsheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/532a6e43-8eb9-4069-a56c-e0d3bcc82fa1/casio_fx-115es_plus_scientific_calculator.pdfIn PDF document text
    • https://40785fcd-1e5e-4316-9306-5db1d5795eae.filesusr.com/ugd/2f07a1_71175977e1ed4fcaa5808e490547ba79.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/fuwuzerijofa/flinn_scientific_lab_answer_key.pdfIn PDF document text
    • https://f37c3615-20b0-4e70-b1e7-2acf34113780.filesusr.com/ugd/1e533a_20a0be8ab17b4f1f8f6b276e56e3a933.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/010d90f2-988d-462c-acd4-5f335d42abd8/dish_network_cable_internet_and_phone_packages.pdfIn PDF document text
    • https://b4140449-9b96-4148-8619-c9b3eed7b48c.filesusr.com/ugd/c33cdb_9e2031a09d7d416694382540b1f1d14e.pdf?index=trueIn 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_off0000dce4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCE4 4960 bytes
SHA-256: 65b44fa9026c57ddd73620c935f8ae50182b15a4f6db2892c656c3196d3b0f47
font_01_sfnt_off0000edbb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDBB 10348 bytes
SHA-256: 66b56d156b2bfcaac6214b37e3449495a399fa13b3260aad8ce4d806bf899fc1

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