Malicious PDF — malware analysis report

Static analysis result for SHA-256 72606ccaa5ef31fd…

MALICIOUS

PDF

74.2 KB Created: 2021-02-21 20:44:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 97946959c85fbe0afd50392888456d12 SHA-1: 4874fd17dcf7befb780738a78d356c5c8a4587cc SHA-256: 72606ccaa5ef31fde2db79b458d175ff7583f79902bf302d9bf2d850ad68f5c2
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://jacksth.ru/123?utm_term=how+much+does+epic+cost+a+month PDF link annotation
    • http://zupinuxuxodu.iblogger.org/lajabipelipoxexig.pdfIn PDF document text
    • https://jubipolofolexi.weebly.com/uploads/1/3/2/3/132302872/bodenomo-wugur-sazibonof.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4428335/normal_600d9f6ece9f2.pdfIn PDF document text
    • https://pewituzusab.weebly.com/uploads/1/3/0/8/130874049/5126155.pdfIn PDF document text
    • http://metalllift.ru/eve_online_magic_145tk7m.pdfIn PDF document text
    • https://vaxofawaz.weebly.com/uploads/1/3/2/6/132682661/kejopijizulej.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407996/normal_6028632db3d4f.pdfIn PDF document text
    • http://wogamilip.iblogger.org/jsp_interview_questions_and_answers_javatpoint.pdfIn PDF document text
    • http://vienvozvrat.site/remidorazuwapigebb1es.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dinopug.epizy.com/fccla_planning_process_template.pdfIn PDF document text
    • http://zopefunexot.epizy.com/35345502812.pdfIn PDF document text
    • http://xufoxozotelu.epizy.com/all_odia_movie_song_2019.pdfIn PDF document text
    • http://pozadel.epizy.com/tesukep.pdfIn PDF document text
    • http://lojupodinitaxug.epizy.com/c_questions_and_answers_for_class_11.pdfIn PDF document text
    • http://tokavasetalan.epizy.com/kovavolagikimopuzazo.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_off0000e545.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE545 5240 bytes
SHA-256: bb82fb944446408c2f60949c7b527d45c0591bcb82c136fa131f4132fc782694
font_01_sfnt_off0000f700.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF700 10840 bytes
SHA-256: b44a1e36f707248e0754e0d13c981dbc030ddde2604ca221834c7737bca529fc