Malicious PDF — malware analysis report

Static analysis result for SHA-256 760453fb4237fb47…

MALICIOUS

PDF

67.1 KB Created: 2021-02-28 02:04:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: d047cd24d60ba66f1479cfe2cb3a937d SHA-1: bca6a7bfb429a262a84221bd68a3232ba1dceea1 SHA-256: 760453fb4237fb47264563b4798f049a93ef2c85634a92bc4a2da65d1bfd7065
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://seumenha.ru/wix?keyword=multiplying+monomials+worksheet+algebra+1+pdf PDF link annotation
    • http://xarolizanep.22web.org/36187902805.pdfIn PDF document text
    • http://lunesygets.xyz/reset_onkyo_tx_nr616jr17i.pdfIn PDF document text
    • http://verification-help.com/rizap5r8vq.pdfIn PDF document text
    • https://karopokonu.weebly.com/uploads/1/3/4/5/134519394/3227ff4f5.pdfIn PDF document text
    • http://fuwefepor.iblogger.org/how_to_use_template_instantiation_in_c.pdfIn PDF document text
    • https://cdn.sqhk.co/letareximo/bNiaghU/wawikazalurar.pdfIn PDF document text
    • http://italysummer.fun/what_does_error_message_b200_mean_on_a_canon_printerf3w2i.pdfIn PDF document text
    • http://tugrull.com/kubazilijikuxojiworizaklaqt.pdfIn PDF document text
    • https://cdn.sqhk.co/befozaxulot/djghh6v/learning_ros_for_robotics_programming_second_edition.pdfIn PDF document text
    • https://tajaleder.weebly.com/uploads/1/3/5/3/135320318/bodabuxobetu-kibapejinunime-zibofi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gozotonitiki.epizy.com/excel_vba_worksheet_index_name.pdfIn PDF document text
    • http://melewurimepuja.rf.gd/wisumawosukikizorejebed.pdfIn PDF document text
    • http://xinugut.epizy.com/advanced_clinicals_collagen_sheet_mask.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_off0000ca1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA1B 5908 bytes
SHA-256: 786a4383121335ae33116ed11bc25f0b488d79247e62890700ea5389350993b3
font_01_sfnt_off0000de29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE29 9736 bytes
SHA-256: 5a4b3f7fc88005c90e79804db0dbee7fb4aa8862b0acfbe68a5274afadf7aedb