Malicious PDF — malware analysis report

Static analysis result for SHA-256 567220400fc5fcc9…

MALICIOUS

PDF

73.2 KB Created: 2021-02-18 08:37:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: e749b8c9124c311f669cbc012f6a565a SHA-1: f9860751bea20f46b6c9b6a57f47a23efdd4ef07 SHA-256: 567220400fc5fcc94e3c00145231d01757332e60fdee6017817be1f63d8caf69
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://druttle.ru/aws?utm_term=como+hacer+un+archivo+pdf+en+celular+iphone PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4389074/normal_5fe616298350b.pdfIn PDF document text
    • https://cdn.sqhk.co/jigavozef/8gImXao/human_fall_flat_free_download_for_ios.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368246/normal_5fefab11bf78d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368781/normal_5fc988f764d0c.pdfIn PDF document text
    • https://cdn.sqhk.co/gesokusa/fVia4m7/gizaropar.pdfIn PDF document text
    • https://cdn.sqhk.co/fukonovum/jaPfKhh/79764456869.pdfIn PDF document text
    • http://polnews.xyz/free_blank_sheet_music_printablerpddb.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/semuxemakaw/40160677998.pdfIn PDF document text
    • https://s3.amazonaws.com/wanasuvedigo/chamma_chamma_video_song_3gp_mp4.pdfIn PDF document text
    • https://s3.amazonaws.com/muvevanepen/dofuvuleni.pdfIn PDF document text
    • https://s3.amazonaws.com/dusined/plain_double_bed_sheets_online_india.pdfIn PDF document text
    • https://s3.amazonaws.com/voropa/faladododutidowide.pdfIn PDF document text
    • https://s3.amazonaws.com/zoromexemuzid/69745575033.pdfIn PDF document text
    • https://s3.amazonaws.com/nuvukivaxiren/charities_regulator_annual_report.pdfIn PDF document text
    • https://s3.amazonaws.com/sefipa/3263846042.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_off0000dfcd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFCD 5180 bytes
SHA-256: e67f8fd5360ce62ba6f637910d7de1f3fa4440cbd4eafbdc7ae1e3cff9e890e6
font_01_sfnt_off0000f14c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF14C 11968 bytes
SHA-256: 8ca0c40cb1e1cc9baaab7a20afcb3e3c25776eb6368fbc343129aef2fad3b825