Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e3d7e468e91c993…

MALICIOUS

PDF

74.2 KB Created: 2021-02-26 00:42:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 67ef238d35f17954589e705a2d9c80ab SHA-1: 2fe3d152103364ea2876a2b28669f41eb3f11ed0 SHA-256: 5e3d7e468e91c9939087ccd9b8d2780e5bbff96abb24001e1b060d14debc4d7f
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://maypoin.ru/123?utm_term=which+two+protocols+does+the+internet+layer+in+the+tcp%252Fip+model+encapsulation+%2528choose+two%2529 PDF link annotation
    • http://sowopezamiw.medianewsonline.com/pepabexofi.pdfIn PDF document text
    • http://quickstore.pro/21926068721hlvux.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374002/normal_5ffeb4cb2b88e.pdfIn PDF document text
    • http://nemeloru.66ghz.com/word_formation_processes_worksheets.pdfIn PDF document text
    • http://rigojakivuvemi.iblogger.org/permutations_and_combinations_sample_questions_with_answers.pdfIn PDF document text
    • http://pumba.fun/diploma_resume_format_freesww3c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489050/normal_5fe486495f571.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vebavibokifoko.epizy.com/6135704758.pdfIn PDF document text
    • http://geforagegi.atwebpages.com/cellular_and_molecular_immunology_abbas_10th_edition.pdfIn PDF document text
    • http://fezogax.rf.gd/ipcc_ar5_fifth_assessment_report.pdfIn PDF document text
    • https://s3.amazonaws.com/jikopot/bravissimo_transformado_junho_2019_iks.pdfIn PDF document text
    • http://pibowaloboko.rf.gd/vehicle_bill_of_sale_alabama_template.pdfIn PDF document text
    • http://wejufutaz.onlinewebshop.net/how_often_do_shareholders_receive_dividends.pdfIn PDF document text
    • http://sesoxevanadike.epizy.com/alicia_keys_no_one_song.pdfIn PDF document text
    • https://s3.amazonaws.com/xuxifuzituwu/birthday_wishes_with_name_images.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_off0000e176.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE176 5712 bytes
SHA-256: 00f22b4043369c04b33cc72702ee1843482819c787d9bd04e9b1388355b3e290
font_01_sfnt_off0000f4ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4EA 11212 bytes
SHA-256: 452ff26f517eba42a239e6d15bcf124ee36280343de88a72504bce6b7e47ac4f