Malicious PDF — malware analysis report

Static analysis result for SHA-256 35ccda0d1f81a0bc…

MALICIOUS

PDF

72.6 KB Created: 2021-02-16 11:56:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: f26ab4a6b58d08d5c11091939bf820ae SHA-1: ea48db3515abff6c6f5a192c8866d2f28e614910 SHA-256: 35ccda0d1f81a0bc77e36ed4a75dba96963e0a8efa4a46f8ca2adbfabfaa9852
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jacksth.ru/wix?keyword=pattern+magic+pdf+gratis PDF link annotation
    • https://dolojimopa.weebly.com/uploads/1/3/4/8/134887070/1463770.pdfIn PDF document text
    • http://lovechat24.club/baronafagigosejabobidewajetbf4.pdfIn PDF document text
    • https://ditixalopu.weebly.com/uploads/1/3/1/4/131410538/6612036.pdfIn PDF document text
    • http://wexoxunesixu.iblogger.org/73232733200.pdfIn PDF document text
    • http://sparzha.club/gimavulewonaturevf8eop.pdfIn PDF document text
    • http://pejubuga.iblogger.org/ambulance_driver_uniform_uk.pdfIn PDF document text
    • http://gulibej.22web.org/types_of_articles_in_english_grammar.pdfIn PDF document text
    • https://moxuronanupew.weebly.com/uploads/1/3/4/5/134597487/pusexosel.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pifimopumo.rf.gd/edit_text_in_photoshop.pdfIn PDF document text
    • https://s3.amazonaws.com/lolijexejomak/chinese_drama_app_with_english_subtitles.pdfIn PDF document text
    • https://s3.amazonaws.com/fokapikow/jquery._ajax_example_form_submit.pdfIn PDF document text
    • https://s3.amazonaws.com/jupevuxirapi/89794793498.pdfIn PDF document text
    • http://buwomonemagup.epizy.com/dividing_complex_numbers_worksheet_kuta.pdfIn PDF document text
    • http://kaxemazetoralib.rf.gd/90914361876.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_off0000df9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF9A 5444 bytes
SHA-256: 414dfed0684bb126ecc96945fe8383f2c6f84c3baa385cc3c3b31d6f92dfd0cb
font_01_sfnt_off0000f20c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF20C 10392 bytes
SHA-256: 4ea29b309213da1d777c235f0d474ed0dbd018cc9f56133e178b62273e59fa1e