Malicious PDF — malware analysis report

Static analysis result for SHA-256 478ad1976c734a97…

MALICIOUS

PDF

64.1 KB Created: 2020-11-10 18:09:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-20
MD5: 9e8b7ab5d387b19b17b6a1916e73bb58 SHA-1: a211926feedff97adfb24faf3d03dd8a98f8a77d SHA-256: 478ad1976c734a97c5acc52a9935377c19c2ee6ce56ae566469d19b7a732c96f
254 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://cctraff.ru/123?keyword=rama+and+sita+pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4388841/normal_5f8f6249e0e12.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372696/normal_5f88f4b63d47c.pdfIn PDF document text
    • https://dubanivexog.weebly.com/uploads/1/3/4/3/134331992/jirapote.pdfIn PDF document text
    • https://sitizoxibe.weebly.com/uploads/1/3/4/3/134317871/rigitala.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/ginutu/parasomnias_pediatria.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8c6d56b2-83bd-444e-b777-f051af11d105/28999354791.pdfIn PDF document text
    • https://s3.amazonaws.com/mupukesunobaga/harmony_school_of_ingenuity_houston.pdfIn PDF document text
    • https://s3.amazonaws.com/wovigebi/safety_1st_grow_and_go_air_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/nowonovege/57748117009.pdfIn PDF document text
    • https://s3.amazonaws.com/gosete/mivefijuvamibajarerife.pdfIn PDF document text
    • https://s3.amazonaws.com/digigitusuduk/outdoor_gas_stove_costco.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_off0000c027.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC027 5068 bytes
SHA-256: 796532df65cdcb35553f0b4dcb424b5b1d1dd4ad727dab9ba6f68be9784c48c8
font_01_sfnt_off0000d163.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD163 10192 bytes
SHA-256: 24985555f9fe7a53493be6bbaf9631e1f11062044cb4b22baa4f659df059c998