Malicious PDF — malware analysis report

Static analysis result for SHA-256 b762f36454d8d98d…

MALICIOUS

PDF

71.4 KB Created: 2021-02-12 01:42:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: f85d6d0819158af3b4dd7de1b79766ab SHA-1: 46e72d39fe57a692f227bf65a146e8765e235110 SHA-256: b762f36454d8d98db560e3b5e42d8932f80caf06cca5e51d35ade6efe378d6f8
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://jottigo.ru/wix?keyword=rifts+earth+map PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4420939/normal_5fcba137e7ff1.pdfIn PDF document text
    • http://prizinsta24.space/21565076177goibz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384150/normal_5fdc4f807ee77.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496582/normal_5fd315df1f447.pdfIn PDF document text
    • http://bodyita.space/sosufesabend0m1u.pdfIn PDF document text
    • http://reduslim-europa.site/65355119317aao30.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405642/normal_600322a33a042.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/jeromopelurab/34894567514.pdfIn PDF document text
    • http://kiduxoz.epizy.com/normandie_cotentin_guide_vert.pdfIn PDF document text
    • https://s3.amazonaws.com/fowikorejodi/beluxegazijo.pdfIn PDF document text
    • https://s3.amazonaws.com/vetamedisoz/84457786536.pdfIn PDF document text
    • https://s3.amazonaws.com/dorobukasawituw/69771244682.pdfIn PDF document text
    • http://sogigadataga.epizy.com/zojepatisi.pdfIn PDF document text
    • https://s3.amazonaws.com/zexozavo/school_building_icons_free.pdfIn PDF document text
    • https://s3.amazonaws.com/nademopor/asphalt_xtreme_theme_song.pdfIn PDF document text
    • http://potosalusuk.rf.gd/zigavijubuxinubera.pdfIn PDF document text
    • http://wakunama.rf.gd/ecommerce_templates_free_responsive.pdfIn PDF document text
    • https://s3.amazonaws.com/leributafa/ribul.pdfIn PDF document text
    • http://wajodojizofe.epizy.com/vcds_lite_deutsch_kostenlos.pdfIn PDF document text
    • https://s3.amazonaws.com/veraxawewib/chakram_telugu_video_songs_free.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cf05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF05 3816 bytes
SHA-256: 148687378a8c3632dc58636764c9238291b01e68133c8455a32dc1a50fd28ee8
font_01_sfnt_off0000dc7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC7E 5116 bytes
SHA-256: 8a0b0e27bb9897def8d79795a975aa48acdc1640c0f053511fd59db6e5a328ae
font_02_sfnt_off0000edc0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDC0 10136 bytes
SHA-256: 96edf04200852482ff9590476e76a3aab1f000800dd1c460860be4e4fb176571