Malicious PDF — malware analysis report

Static analysis result for SHA-256 504c22ee331ede22…

MALICIOUS

PDF

71.0 KB Created: 2021-01-31 11:12:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: ebf6518c53a7ea36d7b0acc5ac926f7f SHA-1: ef8ce33f9e79ec2b6a07ff2542ddc036c9d23ce2 SHA-256: 504c22ee331ede22eebf9b514317d99df0ebe97fca446a4b76cd6f4e4cebf820
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://jottigo.ru/aws?utm_term=algebraic+equations+worksheets+for+class+6 PDF link annotation
    • http://gareduli.22web.org/weekly_progress_report_pokemon_go.pdfIn PDF document text
    • https://cdn.sqhk.co/tesolivu/agjjehg/36276890183.pdfIn PDF document text
    • https://cdn.sqhk.co/xenivoronizu/tiethdu/uefa_champions_league_final_2020_time.pdfIn PDF document text
    • http://pornbustyvids.com/685872156168vnrh.pdfIn PDF document text
    • https://cdn.sqhk.co/vuzujugasije/ufhj073/fegona.pdfIn PDF document text
    • https://cdn.sqhk.co/dikozogub/jeniJgh/free_rock_music_download_ringtones.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vojuzegi.epizy.com/anitra_s_dance.pdfIn PDF document text
    • http://patabajisof.epizy.com/strona_bierna_angielski_exercises.pdfIn PDF document text
    • http://lemizirimafon.epizy.com/appsc_previous_papers_with_key.pdfIn PDF document text
    • http://mezotake.epizy.com/losojagopilefedodola.pdfIn PDF document text
    • https://s3.amazonaws.com/golepe/1921523617.pdfIn PDF document text
    • https://s3.amazonaws.com/xidazeze/cours_sur_les_bascules_electronique.pdfIn PDF document text
    • http://kewivifonawati.epizy.com/pafesifadumegan.pdfIn PDF document text
    • http://jupuluna.epizy.com/7686577691.pdfIn PDF document text
    • http://zutagokakaki.rf.gd/78400459860.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_off0000d454.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD454 5708 bytes
SHA-256: 7c96d2c6b3e87bfd3579a5d726edfc8acd99046bdfa1e74decdb7a79f782b0fd
font_01_sfnt_off0000e7db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7DB 11508 bytes
SHA-256: 475d484dc561af2b6b8522a9bb50fe0912cea1bdb99641d5c3693d58b1f32554