Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c4c6f7ce3bbc0ce…

MALICIOUS

PDF

87.0 KB Created: 2021-03-28 14:20:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-16
MD5: ba1f44f3a223f0a5d79153705cb0a6a4 SHA-1: b1e1cbc76417ee36b79166659c778c7a74052356 SHA-256: 5c4c6f7ce3bbc0ce780c155f866715d5c34ddc548a904082d1c8a0627f1e0095
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

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 https://fokemale.ru/award?keyword=vacuna+antineumoc%25C3%25B3cica+13+valente+pdf PDF link annotation
    • http://fijexojor.getenjoyment.net/pedabogedos.pdfIn PDF document text
    • http://tosefabebiribow.scienceontheweb.net/47707617714.pdfIn PDF document text
    • http://javaxirivibewi.mygamesonline.org/how_to_adjust_the_belt_of_a_treadmill.pdfIn PDF document text
    • http://lorubuxetorifa.medianewsonline.com/zigisawep.pdfIn PDF document text
    • https://cdn.sqhk.co/bujasugawo/ji4hbGP/firenukub.pdfIn PDF document text
    • https://cdn.sqhk.co/petawelesup/SxgfidM/top_10_french_songs_2020.pdfIn PDF document text
    • http://levitajagukog.scienceontheweb.net/cambridge_english_empower_b2_combo_a.pdfIn PDF document text
    • http://wudebakafepi.mypressonline.com/branca_de_neve_e_o_caador_livro.pdfIn PDF document text
    • https://cdn.sqhk.co/ruxuzobisu/0hhie96/28222436690.pdfIn PDF document text
    • http://bokaxakoz.sportsontheweb.net/punctuation_comma_rules.pdfIn PDF document text
    • http://xutexukoxobofi.mywebcommunity.org/java_gui_components.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zosajirigo.rf.gd/tulubigadedisugo.pdfIn PDF document text
    • http://lusiwavi.rf.gd/57204575079.pdfIn PDF document text
    • http://baxutuzimux.epizy.com/xoditat.pdfIn PDF document text
    • http://bifobexa.rf.gd/45112022066.pdfIn PDF document text
    • http://luvoximod.epizy.com/44020938967.pdfIn PDF document text
    • https://s3.amazonaws.com/jifedefujodu/coolrom_safe_to.pdfIn PDF document text
    • http://foxebunuref.epizy.com/25910794376.pdfIn PDF document text
    • http://gefilodeza.myartsonline.com/26303658274.pdfIn PDF document text
    • http://konevimojo.epizy.com/17736177840.pdfIn PDF document text
    • http://sijadogif.atwebpages.com/john_the_ripper_example_ntlm.pdfIn PDF document text
    • https://s3.amazonaws.com/gimisorixosu/culver_s_job_application_form_online.pdfIn PDF document text
    • https://s3.amazonaws.com/jixeremipet/80748547785.pdfIn PDF document text
    • https://s3.amazonaws.com/gedexim/footjoy_golf_shirt_size_guide.pdfIn PDF document text
    • http://zirofasorajama.epizy.com/50121024639.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_off0000fc76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC76 5404 bytes
SHA-256: e03ada38b546d532667ec5cfbb5fb84500c2f9ef2b01f9dec992fc30eb43ae0a
font_01_sfnt_off00010ea2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10EA2 12316 bytes
SHA-256: 7aec7f725d79372e650d2b778b8f06bd9eeca03973ae1c54db3fa20b4ae61cf8
font_02_sfnt_off00013712.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13712 16060 bytes
SHA-256: d1a84ba8f0e4a827a048d387db8dd5dae3538f1c7e72415b16af587a9947cdc7