Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ac536d27637021d…

MALICIOUS

PDF

73.8 KB Created: 2021-02-09 04:01:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 816892df24f208f04c0ba542d1e9af07 SHA-1: 4f98d49f163ffbb4d8b68854a6145ae703be9a7d SHA-256: 9ac536d27637021d0be04cbc1250a6e1a676ff7baccdd149870d5304719927e5
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://jacksth.ru/wb?keyword=historia%20arquitectura%20romana%20pdf PDF link annotation
    • https://dukalafaziwemum.weebly.com/uploads/1/3/4/7/134772398/nasosenirawejufa.pdfIn PDF document text
    • http://sanikeroror.iblogger.org/2905896901.pdfIn PDF document text
    • http://arenaprobet.com/addictive_drums_2_full_downloadfi1fq.pdfIn PDF document text
    • http://petersikdar.com/xotosejigirolujanatave8mluw.pdfIn PDF document text
    • https://mikatafa.weebly.com/uploads/1/3/1/3/131398449/vibujifepoxagox_salekam_vasoxudesokige_wuxoguxovi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gewapapis.epizy.com/autodesk_revit_2015_family_library.pdfIn PDF document text
    • http://sefibonep.rf.gd/angular_login_form_sample.pdfIn PDF document text
    • http://pojetol.epizy.com/bna_airport_map.pdfIn PDF document text
    • https://s3.amazonaws.com/wazagidonux/39183980998.pdfIn PDF document text
    • http://kepinud.rf.gd/2248307084.pdfIn PDF document text
    • http://losapudobo.epizy.com/elberton_net_tv_guide.pdfIn PDF document text
    • http://migibujefixofap.rf.gd/working_time_directive_drivers_hours_spreadsheet.pdfIn PDF document text
    • https://s3.amazonaws.com/widuxade/column_addition_worksheet_year_2.pdfIn PDF document text
    • https://s3.amazonaws.com/vavapekadoliti/nizuniwe.pdfIn PDF document text
    • http://xaxotatizomeno.rf.gd/70146065474.pdfIn PDF document text
    • http://puferug.rf.gd/pamuzunedavavekaxupu.pdfIn PDF document text
    • https://s3.amazonaws.com/rodigapigeta/78876794953.pdfIn PDF document text
    • http://wovotunuvovon.epizy.com/asphalt_xtreme_for_windows_8._1.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_off0000e39c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE39C 5356 bytes
SHA-256: 25162eef775ee1dc5da87d01413e559a6c4bd9367cbe1b3a478c62c21f5ce2ac
font_01_sfnt_off0000f5b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5B9 10732 bytes
SHA-256: cb943edaa21e929301b217341d8eb8f07301abdfdbfda21c4cf620e74e408019