Malicious PDF — malware analysis report

Static analysis result for SHA-256 509a97bc870501f9…

MALICIOUS

PDF

75.0 KB Created: 2021-02-24 05:28:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 3ef386c9d5257295aeed49e17ee08b08 SHA-1: a7e799df433cbac3ee230c63b48673209657facc SHA-256: 509a97bc870501f9212b39d232411a49da85da40010f2d33cc9c92927950f76f
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://leonvi.ru/123?utm_term=how+to+clean+printer+head+hp+deskjet+1510 PDF link annotation
    • https://cdn.sqhk.co/kerutadit/ohighje/basketball_shot_chart_template.pdfIn PDF document text
    • http://lotto-investclub.com/eiki_projector_bulb_lc-x984zvhjt.pdfIn PDF document text
    • https://cdn.sqhk.co/dopinaku/Oifgihh/49144605070.pdfIn PDF document text
    • http://busibear.com/thompson_center_thunderhawk_partshm9od.pdfIn PDF document text
    • http://copyright-help-center.com/charles_proxy_not_working_android9qfng.pdfIn PDF document text
    • https://cdn.sqhk.co/gaxudofexal/Hmhi7bF/hill_racing_2_game.pdfIn PDF document text
    • http://opros.xyz/zalovoduramukinu52.pdfIn PDF document text
    • https://cdn.sqhk.co/vilonunufuk/RnifeiA/67637154402.pdfIn PDF document text
    • http://antonio-ita.space/muvugirekelegudatubez0ifwq.pdfIn PDF document text
    • https://cdn.sqhk.co/juxerawabuf/iiBkjjd/jirex.pdfIn PDF document text
    • https://cdn.sqhk.co/litonesi/PihiaA9/minecraft_java_edition_free_download.pdfIn PDF document text
    • http://app-3null.com/ambledown_claim_form_2019q6ou8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486743/normal_5ff01d3c62148.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/vavapekadoliti/kugamo.pdfIn PDF document text
    • https://s3.amazonaws.com/tanikanaw/macromedia_animation_software_free.pdfIn PDF document text
    • https://s3.amazonaws.com/dazuxujepov/vaaste_lyrics_video.pdfIn PDF document text
    • https://s3.amazonaws.com/xabalaru/despite_and_although_exercises.pdfIn PDF document text
    • https://s3.amazonaws.com/bofake/didowusolesivuzafibaku.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_off0000e972.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE972 5672 bytes
SHA-256: 16b3ada86c49f29f364021cf844734c0e3f4c65ce6c447774aa78a50d866d3cc
font_01_sfnt_off0000fcce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCCE 10084 bytes
SHA-256: 268dc93101999c66ba5a717935990f488ae162e2e59ed95431c43fcc644c5b2d