Malicious PDF — malware analysis report

Static analysis result for SHA-256 d89167ecbd91e813…

MALICIOUS

PDF

68.1 KB Created: 2021-02-22 15:11:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 8e2bc0def77551cf9469604ce2131076 SHA-1: 747274522e3ff1d700d7edcdc15c72903491d391 SHA-256: d89167ecbd91e8135463a695bbe1581bb5ed8118c505b0d2781d0cf433576e06
136 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
  • 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://baarspo.ru/wb?keyword=how%20to%20connect%20zagg%20keyboard%20ipad PDF link annotation
    • https://cdn.sqhk.co/lafuwexale/vQChahj/lozajamefi.pdfIn PDF document text
    • https://cdn.sqhk.co/daxegajok/bKt4Rge/60572710715.pdfIn PDF document text
    • https://cdn.sqhk.co/lakivasulis/if9jfGV/21977076627.pdfIn PDF document text
    • https://cdn.sqhk.co/temirikuji/cjifij0/neon_swirls_on_black_background.pdfIn PDF document text
    • https://cdn.sqhk.co/xefijumu/jklwifn/aivatar_animated_sticker_whatsapp_wastickerapps.pdfIn PDF document text
    • https://cdn.sqhk.co/bisadidizi/Rgugihh/wofaniguwoxa.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/tevigotu/machine_learning_datasets.pdfIn PDF document text
    • https://s3.amazonaws.com/luramamelolem/12418314112.pdfIn PDF document text
    • https://s3.amazonaws.com/jodabiladezot/adobe_illustrator_business_presentation_templates.pdfIn PDF document text
    • https://s3.amazonaws.com/somamere/peaky_blinders_season_6.pdfIn PDF document text
    • https://s3.amazonaws.com/wixatax/porous_plastic_fluidizing_plate_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/sabobenuwe/23808035916.pdfIn PDF document text
    • https://s3.amazonaws.com/wizomoravazub/varugumujumokufasim.pdfIn PDF document text
    • https://s3.amazonaws.com/novipaliwid/84512219876.pdfIn PDF document text
    • https://s3.amazonaws.com/widuxade/relevudananawunisunum.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_off0000ca8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA8C 5440 bytes
SHA-256: 06ac3431da776332ba6402d204f5389d100e1737390a2eb684b11fae5d9473c9
font_01_sfnt_off0000dd3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD3C 11256 bytes
SHA-256: c8fadb364325ccf2c026ed3cb7d7916b9174febb1f7c8abb5da5510fb368f529