Malicious PDF — malware analysis report

Static analysis result for SHA-256 704e68496785c0c0…

MALICIOUS

PDF

71.8 KB Created: 2021-02-27 11:16:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: e137ff0b7a40631b4b01e5928f939647 SHA-1: a50db0e2d062a40affa7cc19fae923579fa2b56f SHA-256: 704e68496785c0c054579ad619a04d08a6e3cb6b6e8e15337cf63d764b8be669
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://ponafet.ru/award?keyword=what+does+dbt+mean+in+banking PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4449984/normal_5fe0fb58c5869.pdfIn PDF document text
    • https://cdn.sqhk.co/neviragar/fidygiB/metaphysics_aristotle_free_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409997/normal_601b908f1bdfb.pdfIn PDF document text
    • https://cdn.sqhk.co/nakunadubux/jajgeig/ultimate_dragon_simulator_mob._org.pdfIn PDF document text
    • https://cdn.sqhk.co/fevivesuxofo/jYhhTig/pew_pew_guru_villa_park.pdfIn PDF document text
    • https://cdn.sqhk.co/xuteposidobi/jcFCQp5/mibakel.pdfIn PDF document text
    • http://migunovaj.iblogger.org/prepositions_exercises_with_answers_grade_6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457560/normal_602d63476d26e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413977/normal_5ffe49f8a75cf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451355/normal_5fce30b155eda.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463552/normal_603942d44d339.pdfIn PDF document text
    • https://cdn.sqhk.co/negolura/cNppjj3/52052828851.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454543/normal_600be3c9256c9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366399/normal_5fedf5c879a7b.pdfIn PDF document text
    • http://xuxijosut.sportsontheweb.net/tebawabogigifikule.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://ketabigumowun.atwebpages.com/reliability_centred_maintenance_software.pdfIn PDF document text
    • http://sisawujeza.rf.gd/minecraft_rftools_dimensions_guide.pdfIn PDF document text
    • http://lupojusojenit.rf.gd/sofitixabixo.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_off0000dd6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD6E 5328 bytes
SHA-256: b38724cac7d1ce5cae6e8aa1f31146fb8e681c12dc4bb824e0d2ef00af2aafa1
font_01_sfnt_off0000ef78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF78 10264 bytes
SHA-256: edf7da8727170a587f107242d94424d66868a5103db6073ae1722940fa090c9a