Malicious PDF — malware analysis report

Static analysis result for SHA-256 232e00aefb8379a5…

MALICIOUS

PDF

72.5 KB Created: 2021-03-03 05:14:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: c82f2927a53172a1e188ee0a0903b997 SHA-1: f004a5154bbf9adf798ee69a0f9b0b3e807e7a3b SHA-256: 232e00aefb8379a5178a3531bde29785c7183657bffb3c692ed1f541589d05c4
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://mezovuduw.ru/award?keyword=why+is+sound+bad+on+zoom PDF link annotation
    • http://dorightpress.com/manupibosanosajwtre0.pdfIn PDF document text
    • http://xobapadu.iblogger.org/keurig_k400_filter.pdfIn PDF document text
    • http://stroymarketmetal.ru/28333786911r6azw.pdfIn PDF document text
    • http://feruwikabi.iblogger.org/aneurisma_fusiforme_aorta.pdfIn PDF document text
    • https://kigazodiraju.weebly.com/uploads/1/3/4/6/134678535/bogaxezavax.pdfIn PDF document text
    • http://collegegraduatecentraldating.com/rjr_94_fm_jamaica_radio_stations4cniy.pdfIn PDF document text
    • http://weviwoza.22web.org/2006_toyota_highlander_hybrid_repair_manual.pdfIn PDF document text
    • http://youralteragoods.com/bluegrass_songbookq311b.pdfIn PDF document text
    • https://vaxurubezinijor.weebly.com/uploads/1/3/4/6/134690270/5818639.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nujopeko.epizy.com/92461051386.pdfIn PDF document text
    • http://pobuwejugu.epizy.com/55526667649.pdfIn PDF document text
    • https://s3.amazonaws.com/degagaziv/pudilikefobixinizut.pdfIn PDF document text
    • https://s3.amazonaws.com/muvazi/devodaxukefixibugogevik.pdfIn PDF document text
    • http://kobuxotaregudes.rf.gd/5954675236.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_off0000e13b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE13B 5244 bytes
SHA-256: 9c5ea20c1375a8085ed41948c8b544fbd4ce732d4fec2d0ecc3e116ebc1a69f4
font_01_sfnt_off0000f307.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF307 10044 bytes
SHA-256: cd9d5c789f41f51439bfd4d6ff6c74cddbf0726927a323410bc9537703174bd8