Malicious PDF — malware analysis report

Static analysis result for SHA-256 893c748bafce581b…

MALICIOUS

PDF

72.5 KB Created: 2021-02-27 23:59:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: f40dc036869e4251abf880732d4e3201 SHA-1: e617cfc2ab98d70c5fb0f89e474746770ee8963c SHA-256: 893c748bafce581b346da1eccaf72689fef4b519108ff6bbb30e6b74a0cfe4b3
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://midufefew.ru/wix?keyword=naruto+ultimate+ninja+storm+achievement+guide PDF link annotation
    • http://8bitbeardsco.com/blue_dye_in_toilet_during_drug_testo3qcc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4527747/normal_5fc7173d7c191.pdfIn PDF document text
    • http://gexopidikimo.mygamesonline.org/how_to_use_fresh_light_hair_dye_bleached.pdfIn PDF document text
    • https://cdn.sqhk.co/zebenane/zlAjhig/nomiz.pdfIn PDF document text
    • http://lizoguxumugef.mywebcommunity.org/epson_v7000_uv_printer.pdfIn PDF document text
    • http://mjawebdesign.net/fofufafivavexzmdz.pdfIn PDF document text
    • http://lg-supportteam.com/spray_paint_line_marking_machine8iupc.pdfIn PDF document text
    • https://cdn.sqhk.co/wijanotunam/jfhfibS/70761279427.pdfIn PDF document text
    • https://cdn.sqhk.co/rapovebakeb/jjmQhii/sinetupep.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pagosunizuboroz.epizy.com/39996557319.pdfIn PDF document text
    • http://vimedunofonuw.rf.gd/android_charsequence_to_byte_array.pdfIn PDF document text
    • https://s3.amazonaws.com/faluzotixupi/assignment_format.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_off0000e0b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0B1 5456 bytes
SHA-256: e1d5a92ed8c3ce507c79d8d2c3958a5a5c658b78454d957a59dec0023e45d63f
font_01_sfnt_off0000f324.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF324 9948 bytes
SHA-256: 8059877370ac9afd2298577c1d7dae24ef5a207b32fa6b1d8e283c532b745537