Malicious PDF — malware analysis report

Static analysis result for SHA-256 664fe39925aa4db1…

MALICIOUS

PDF

72.7 KB Created: 2021-02-12 05:58:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 646386a63f2348c2b54c67e9ac2391d1 SHA-1: bb5a1baf77b214891e3332d6954b2ae17d33d4dc SHA-256: 664fe39925aa4db15c15346c13328c6e332a5437cb520f627ef60947b547cd85
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://baarspo.ru/wix?keyword=does+xbox+360+play+blu+ray+disc PDF link annotation
    • https://cdn.sqhk.co/nixagigad/MTjgjew/nda_exam_pattern_and_syllabus_download.pdfIn PDF document text
    • https://cdn.sqhk.co/tajudozizif/ficKvcQ/zowefanaziriposekusi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403679/normal_5ff43203f0ea2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451555/normal_601581825afa2.pdfIn PDF document text
    • https://cdn.sqhk.co/zoxowowi/hcihNje/chocolate_pudding_recipe_eggs.pdfIn PDF document text
    • https://cdn.sqhk.co/gawagunikuw/HiipjeN/60103746076.pdfIn PDF document text
    • http://chempion.coffee/72887206910q9sjw.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481667/normal_5fc7b882dc791.pdfIn PDF document text
    • http://plsale.pro/carpentry_basics6ywzj.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4443819/normal_5fd06d479d3c3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501027/normal_60217f42715ea.pdfIn PDF document text
    • https://cdn.sqhk.co/rabataxuvax/Tijhegj/cube_blast_master.pdfIn PDF document text
    • http://aycotoro6.xyz/94258493337hy62c.pdfIn PDF document text
    • http://marketop.club/nehir_problemleri_test5a9q8.pdfIn PDF document text
    • https://cdn.sqhk.co/felinavaw/5hjeQhi/star_wars_galaxies_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/guwewaxa/aiadlDq/space_frontier_2_unlimited_money.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://konapawejiwevin.epizy.com/janekok.pdfIn PDF document text
    • http://bupujipa.epizy.com/geotechnical_report_nz.pdfIn PDF document text
    • http://ketened.rf.gd/facebook_liker_app_for_android.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_off0000de31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE31 5836 bytes
SHA-256: 9e4fcb5aa27da3692d33b03f38b3c249d60a701780fab90c1f211c5f6f9f9093
font_01_sfnt_off0000f225.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF225 10480 bytes
SHA-256: 1e60c19d680da5503e3041168c3d97d941f068da3c119a4291795788cf7b92e0