Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a591c7064b41212…

MALICIOUS

PDF

70.8 KB Created: 2021-02-10 11:18:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: daed866cd394d5bea1e4457ca889db9e SHA-1: b04fe4677db17820767b045b68552d125c795ab3 SHA-256: 6a591c7064b412123483edb39517de4ce5b8f0a14c4cc2ec15c69be535e35a68
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://druttle.ru/wb?keyword=asphalt%207%20android PDF link annotation
    • http://help-violation.com/bicycle_built_for_two_lyrics_answersk2mc.pdfIn PDF document text
    • https://nasipowo.weebly.com/uploads/1/3/1/3/131383467/tapixelibev_xerovukixurafe_bonasaji_furedejujesuvat.pdfIn PDF document text
    • https://gubepukabo.weebly.com/uploads/1/3/0/8/130873841/4354674.pdfIn PDF document text
    • http://lastmarkt.ru/hp_image_enhancement_for_system_logon1iik8.pdfIn PDF document text
    • http://womans30planet.com/psp_cso_games_under_100mb_downloade7u3n.pdfIn PDF document text
    • https://barijenevedi.weebly.com/uploads/1/3/1/4/131438420/3968d.pdfIn PDF document text
    • https://nawawedivoxoni.weebly.com/uploads/1/3/4/7/134719505/buxozewunuvupo.pdfIn PDF document text
    • http://c-advance.space/les_feuilles_mortes_partition_pianoc1iou.pdfIn PDF document text
    • https://dokegofixak.weebly.com/uploads/1/3/0/8/130873830/basol_gufevukuvutefe_wuzose.pdfIn PDF document text
    • http://microbladingeyebrowsdallastx.com/561474176054zhm0.pdfIn PDF document text
    • https://limejanokevipa.weebly.com/uploads/1/3/0/7/130739330/bd836889.pdfIn PDF document text
    • http://helpverifedbadges.com/dadurisa4ty.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://texokobatogu.epizy.com/network_topology_definition_and_types.pdfIn PDF document text
    • http://fadirekobesi.rf.gd/employee_evaluation_templates_word.pdfIn PDF document text
    • http://resibifamopoto.rf.gd/bitstream_font_navigator_2006.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_off0000d892.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD892 5116 bytes
SHA-256: 8a0d061ccb77695eb96d6abc28f3280acfd0da72598fcae5fe5c9a14fa712f93
font_01_sfnt_off0000e9f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9F5 10752 bytes
SHA-256: c55d9b8453dbee966e53b292ff5d7e2b7dfb603a458f698ce127e04ece3d4d4d