Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e0a407f93173eb5…

MALICIOUS

PDF

80.4 KB Created: 2021-06-02 08:57:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 80b65b5cb913c263cab03d224559e78e SHA-1: 738069d7a9bce0355cfb983421120134e7ad40fd SHA-256: 4e0a407f93173eb5787182e1ed0ca808760f64b0d48e8b04f9d0775eb9127fc4
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. The document contains numerous embedded links, many pointing to disposable hosting, suggesting a link farm designed to obscure the true destination or distribute malware. The presence of a seemingly relevant but ultimately nonsensical document body further supports a phishing or social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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
  • 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 http://www.ascendercorp.com/ In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://feedproxy.google.com/~r/wb/ENAH/~3/_7yJ53orglQ/wb?keyword=who%20is%20the%20new%20appointed%20chief%20of%20army%20staffPDF link annotation
    • http://jeselivid.pbworks.com/w/file/fetch/144487197/dozusuf.pdfIn PDF document text
    • http://kinuwibe.pbworks.com/w/file/fetch/144444708/49766683011.pdfIn PDF document text
    • http://wiwedano.pbworks.com/w/file/fetch/144427248/jidelimeterodugitet.pdfIn PDF document text
    • http://kedetuwi.pbworks.com/f/python_machine_learning_sebastian_raschka_review.pdfIn PDF document text
    • http://palixazoke.pbworks.com/f/les_animaux_exercices_de_vocabulaire.pdfIn PDF document text
    • http://liwuvedesisu.pbworks.com/w/file/fetch/144484059/fovukoxapigafur.pdfIn PDF document text
    • http://kunixove.pbworks.com/w/file/fetch/144483747/is_there_a_problem_with_yahoo_mail_tonight.pdfIn PDF document text
    • http://zelovoguvunu.pbworks.com/w/file/fetch/144425043/mibikileme.pdfIn PDF document text
    • http://lakebimutep.pbworks.com/w/file/fetch/144414372/cellular_respiration_experiment_with_yeast_and_methylene_blue_lab_report_introduction.pdfIn PDF document text
    • http://mapaduzipi.pbworks.com/f/what_was_the_primary_goal_of_the_2009_affordable_care_act_quizizz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5613dfa2-43d2-4b4d-9924-3bf7f5bcd9e7/power_privilege_and_difference_sparknotes.pdfIn PDF document text
    • http://dawijunegolo.pbworks.com/f/65031019189.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/886ab1cc-acdf-4388-bc71-64f526ccd0f5/how_to_mix_rap_vocals_logic_pro.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a5fcbf26-3c7a-4714-a58a-76cdff3bce67/how_to_calculate_gas_flow_rate_through_a_pipe_when_the_velocity_is_not_known.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/61e7521e-a8ea-4740-bf68-64f0be2d4ed3/samsung_galaxy_note_4_korean_price_in_pakistan.pdfIn PDF document text
    • http://jeselivid.pbworks.com/f/free_doodle_colouring_sheets_dinosaurs.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9a9778f8-f517-41a7-aaeb-813f3476357d/what_happens_after_mos_school_marines.pdfIn PDF document text
    • http://gajufabeke.pbworks.com/w/file/fetch/144423048/wobijutepoxa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8604f205-4446-4f6e-ac66-ca1e012b95f5/mysterious_benedict_society_series_show.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9d1d5915-aaf0-400e-bce2-917ffc888f31/zijesu.pdfIn PDF document text
    • http://mituxap.pbworks.com/w/file/fetch/144424242/what_is_the_difference_between_absorption_costing_and_variable_costing_chegg.pdfIn PDF document text
    • http://mogulobobis.pbworks.com/w/file/fetch/144496071/dimensional_analysis_problems_worksheet_answers_chemistry.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e6be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6BE 5568 bytes
SHA-256: b776994543638b319510e45a27a8961b463dbdae23327f889c1af6b37c111ebd
font_01_sfnt_off0000f9a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9A7 10636 bytes
SHA-256: 26a1ac9b01416ecc90b03fc975b0b78b8c42a2a7dc5c520c14c5baf513e82314
font_02_sfnt_off00011e57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11E57 16164 bytes
SHA-256: e296a61d2d303e35be9e1a35631556663d2780498efa7e8f3867bf557f172fe6