Malicious PDF — malware analysis report

Static analysis result for SHA-256 1450994a32ae199f…

MALICIOUS

PDF

78.2 KB Created: 2021-01-29 10:44:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 326767ec36cf9d86ac7890f710668895 SHA-1: 995ba9b257d33c451567c87e617eec27e66a2658 SHA-256: 1450994a32ae199f585e66425f04689706f9def8fd00cbe68c24e535e89a0767
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://seumenha.ru/wb?keyword=candyman%20movie%202020%20netflix PDF link annotation
    • https://cdn.sqhk.co/nibedogoxov/jhjanEj/maribazikaxoje.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413109/normal_5fe0fecccdbb5.pdfIn PDF document text
    • https://limuvowefegepud.weebly.com/uploads/1/3/4/5/134509231/leledidamud.pdfIn PDF document text
    • https://rupogasonewu.weebly.com/uploads/1/3/4/6/134653860/vurovajiwerigufape.pdfIn PDF document text
    • https://wenojobopowegit.weebly.com/uploads/1/3/4/8/134879608/295639d2aa.pdfIn PDF document text
    • https://zowajapizuxazo.weebly.com/uploads/1/3/0/9/130969341/xuruwejewulaxinan.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4427498/normal_6006f970e041a.pdfIn PDF document text
    • https://xirazaju.weebly.com/uploads/1/3/4/8/134859293/a9af147cf010d7a.pdfIn PDF document text
    • https://vuzeruferule.weebly.com/uploads/1/3/4/5/134591890/bejikovizuxapi.pdfIn PDF document text
    • https://tisemadu.weebly.com/uploads/1/3/4/3/134387657/6b80c08e0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445326/normal_5fd69712c1933.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405945/normal_5fe0a60d63a7b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4503987/normal_5fc5c90e2bfa1.pdfIn PDF document text
    • https://juladuwupib.weebly.com/uploads/1/3/4/7/134763366/diwesepakoma.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/jimugivos/baritone_horn_sheet_music_beginners.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_off0000f5eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5EB 5188 bytes
SHA-256: c73d60576284d05900de56faa47a905fc08eb35055d6966986347ec4436556e5
font_01_sfnt_off00010798.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10798 10940 bytes
SHA-256: 08e0a6a32e3b73c9ce7fbc543977d4e4e847285f48c7af3808083db7f758e38a

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