Malicious PDF — malware analysis report

Static analysis result for SHA-256 066559d26f3073f3…

MALICIOUS

PDF

69.8 KB Created: 2021-02-07 18:48:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 7cce56c4c4bca1bebd1685334808a280 SHA-1: 05bafdd9bdab516af14af05cb964ba25ac66e7b2 SHA-256: 066559d26f3073f382a9978986f48134ecf36c6a21420f4edc56598f0d7a9ea2
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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=home%20fire%20risk%20assessment%20template PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4458849/normal_601acbc4157fb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471971/normal_600368b65e11c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486220/normal_601448b4d2086.pdfIn PDF document text
    • http://gakivako.iblogger.org/escritura_cuneiforme_significado.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403117/normal_601197b1414d2.pdfIn PDF document text
    • http://tewazezila.66ghz.com/bimco_standard_bareboat_charter_form.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476758/normal_5ffb493d95afc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4466996/normal_5fe4bb7ce5214.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480886/normal_5ffc90aa2f9c5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369164/normal_5fd79241e2442.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366980/normal_5fe70fddb56f7.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zidojupilazado.rf.gd/prevencion_del_alcoholismo_en_adolescentes.pdfIn PDF document text
    • http://zemadepa.rf.gd/wapogizademin.pdfIn PDF document text
    • http://fofifalog.rf.gd/28804503007.pdfIn PDF document text
    • http://kikesij.epizy.com/zugepoziz.pdfIn PDF document text
    • https://s3.amazonaws.com/tarizirefevifab/19297346233.pdfIn PDF document text
    • http://xavemiwikujuxuk.rf.gd/excel_vlookup_using_worksheet_name.pdfIn PDF document text
    • https://s3.amazonaws.com/lorerexeg/master_plan_of_evangelism_study_guide.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_off0000d7ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7EF 5072 bytes
SHA-256: e6579088c9580f3e9d3408ebd5f56043409423f63e5ca04c66762ac4ea39fbce
font_01_sfnt_off0000e919.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE919 9700 bytes
SHA-256: 9d21edb5f0369774df573db053035e2eb67af49c7b3b7e5c9f5b24ad8d0c1feb