Malicious PDF — malware analysis report

Static analysis result for SHA-256 a2f0018069b99c0d…

MALICIOUS

PDF

69.5 KB Created: 2021-01-29 12:56:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: d6fc9f3c8621c130692bb83fdf6c2f13 SHA-1: e5578228df0da50c834393ca5c144e05de74bc56 SHA-256: a2f0018069b99c0dcb8c784f3605a5c06caa1741ccab9f4a5eb1eb1c9d7f4d33
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://seumenha.ru/wb?keyword=ice%20hockey%20world%202019 PDF link annotation
    • http://legko.travel/final_reich_walkthroughvc62i.pdfIn PDF document text
    • https://cdn.sqhk.co/jibenapola/4ib2Z7t/rock_out_loud.pdfIn PDF document text
    • https://cdn.sqhk.co/dokadajij/gdJ3ogf/battery_operated_candles._net_coupon_code.pdfIn PDF document text
    • https://cdn.sqhk.co/kowaziwaso/iayidfQ/shamans_pop_bubble_shooter_unblocked.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471275/normal_5fe5e9fde9f5f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413456/normal_5fda6c38b38a5.pdfIn PDF document text
    • https://mewodufupojapoz.weebly.com/uploads/1/3/1/8/131857890/6081032.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418175/normal_5fe47e14efa6a.pdfIn PDF document text
    • https://vogovolakufa.weebly.com/uploads/1/3/4/8/134874318/6660902.pdfIn PDF document text
    • https://jedegifopa.weebly.com/uploads/1/3/0/7/130738854/3cb92278.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446770/normal_5fe8c91c13581.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rarasim.epizy.com/just_be_you_anthem_lights_song.pdfIn PDF document text
    • http://bivoxubi.epizy.com/98496596608.pdfIn PDF document text
    • http://namajuve.epizy.com/agenda_escolar_2018_19_gratis.pdfIn PDF document text
    • http://velefejaforafe.rf.gd/beyblade_season_1_in_tamil.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_off0000d27c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD27C 5316 bytes
SHA-256: 8407dd90067e28ff2028f525d8c16e467e7c0a90d974b7945db8d372355284ee
font_01_sfnt_off0000e4ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4AC 11008 bytes
SHA-256: 0f1e544fe80073a8d40935aab0a8bf95d59bf2149fc99bf279dfa8bdd97cc599