Malicious PDF — malware analysis report

Static analysis result for SHA-256 b23e96e6cbdde543…

MALICIOUS

PDF

61.5 KB Created: 2021-02-17 02:46:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: d9afced6610dee720453ba146950cc1f SHA-1: 2ac0fc7fdd6b7cee72e16d40abe8de5be9936b31 SHA-256: b23e96e6cbdde54345c4279bce39b6db2d83257665cd97ef1271fb0ba547dba6
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://maypoin.ru/wix?keyword=gangster+life+game+free+mode+password PDF link annotation
    • http://it50disconto.info/doraemon_video_pagalworlddzz0s.pdfIn PDF document text
    • http://pelistens.xyz/16727714619826ql.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4427077/normal_5ff8b14743b23.pdfIn PDF document text
    • http://ingmijn.com/vojolafelifefwn0wb.pdfIn PDF document text
    • http://ceter.xyz/jean_baudrillard_simulacra_and_simulation_downloadw71b0.pdfIn PDF document text
    • http://pexiwaz.iblogger.org/startup_business_plan_presentation_template.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4443619/normal_5fde65d320cce.pdfIn PDF document text
    • http://egosikenclub.com/bruel_kjaer_pulse_labshopc0zbm.pdfIn PDF document text
    • http://heartcenteredequestrian.com/tereboret43p09.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/xezujuxoz/6829633871.pdfIn PDF document text
    • http://buwobazakosujo.rf.gd/wajinubew.pdfIn PDF document text
    • https://s3.amazonaws.com/tifuwuw/ansible_template_src_relative_path.pdfIn PDF document text
    • https://s3.amazonaws.com/novifamigot/hd_wallpapers_for_iphone_6s_plus.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_off0000b329.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB329 5484 bytes
SHA-256: 535deeba6099baaf3665175536fd89aa9a1b2c5dc54e6ab572bbcbfd6abeb4cd
font_01_sfnt_off0000c5d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5D3 10524 bytes
SHA-256: 03877824447e6d3f9f99c124434b9e68dc69ca63d117d44b0efd0e9908d87aa5