Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b48ed0f68ac1a9c…

MALICIOUS

PDF

80.8 KB Created: 2021-02-23 23:35:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 576f17cfc564262d1a851b821b0642ab SHA-1: b3e759731ee81a3b41a920d62f392f6745ccd819 SHA-256: 0b48ed0f68ac1a9c9160e873841fd69c51418c7e67b01d24cf3f3cc31ce683b6
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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/aws?utm_term=how+to+program+lux+1500+thermostat PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4455881/normal_601fd8c339ffa.pdfIn PDF document text
    • http://vykupavto54.ru/xemokisomuvikepw6hf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455672/normal_5fd7014f3c038.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4376375/normal_5ff770cbd1143.pdfIn PDF document text
    • http://yozi.store/pinewood_sector_f_codee1ci3.pdfIn PDF document text
    • https://cdn.sqhk.co/foroboreb/eXOjjt3/kijupewalosimidelenawo.pdfIn PDF document text
    • https://cdn.sqhk.co/murafabu/o1qd8gi/65032862987.pdfIn PDF document text
    • http://zaliv2k20wowowowoow.xyz/nuvopekejaxupukidao354c.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/vonuxagupeduze/jikore.pdfIn PDF document text
    • https://s3.amazonaws.com/tisegovofu/jodakunedixiwebos.pdfIn PDF document text
    • https://s3.amazonaws.com/sifawekujiki/gcmmf_annual_report.pdfIn PDF document text
    • https://s3.amazonaws.com/paxivogedewilu/royal_affair_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/povodijirig/excel_budget_spreadsheet_reddit.pdfIn PDF document text
    • https://s3.amazonaws.com/marimejerebo/tozatosixodabusumotibifel.pdfIn PDF document text
    • https://s3.amazonaws.com/vibuvomomuv/numerical_expressions_worksheet.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_off0000fc3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC3C 5672 bytes
SHA-256: 889d871166554c04452e291ff46a63494b5c82f3b9256c1c4d70cdd2f51f973f
font_01_sfnt_off00010f78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F78 10932 bytes
SHA-256: 2bae5e439a713b235c242f4e139107958d2c51c0405411924bfaf57814bdec1c