Malicious PDF — malware analysis report

Static analysis result for SHA-256 89beff2e2919761a…

MALICIOUS

PDF

70.0 KB Created: 2021-02-02 11:49:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 73bb88cb58f41dfed42244e54a5a5033 SHA-1: 8010b559e9d1fbe0fdacd2be873184fce902ccac SHA-256: 89beff2e2919761a9fc73ae7fc8844f7ba5557e7fec39df92b6bc2accf864026
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://leonvi.ru/wb?keyword=smiley%20live%20wallpaper%20happy%20background%20mean PDF link annotation
    • https://cdn.sqhk.co/lulaxujik/icSpfzC/commuting_geographical_definition.pdfIn PDF document text
    • http://tosanelelodidot.iblogger.org/84569204222.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4491934/normal_5ff040b0e7835.pdfIn PDF document text
    • https://fezipogapatud.weebly.com/uploads/1/3/4/8/134888370/sejatej.pdfIn PDF document text
    • https://sudejewakigalo.weebly.com/uploads/1/3/4/0/134040490/fd5b02d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403260/normal_60176e8816dad.pdfIn PDF document text
    • https://cdn.sqhk.co/mugapowejog/hgiiii8/word_board_for_dogs.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420451/normal_5fedf83c43965.pdfIn PDF document text
    • https://cdn.sqhk.co/xufatirumina/higfifA/carson_wentz_wife_ring.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xesepodine.rf.gd/39233481188.pdfIn PDF document text
    • https://s3.amazonaws.com/wewiro/business_model_canvas_book.pdfIn PDF document text
    • https://s3.amazonaws.com/bepukuba/ruraxofebuko.pdfIn PDF document text
    • http://zuronixo.rf.gd/bruner_theory_of_learning.pdfIn PDF document text
    • http://jevoneloz.epizy.com/deep_down_game_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/jotogorurekuro/tetugefokutubifudoladolet.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_off0000d2dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2DD 5872 bytes
SHA-256: b32eb3d262564ff2ab6c02cfcca279e59f1c4ccb6eafc8beac872c60af996be4
font_01_sfnt_off0000e6c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6C0 10552 bytes
SHA-256: 10dbdb037833b1ba823e21e6e9db7ce78c0b1409fad886e8d61d664118e7ccbd