Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1c62fb8b7ee5b20…

MALICIOUS

PDF

64.0 KB Created: 2020-11-11 06:43:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2022-06-20
MD5: ef14acee5469007514bd2fc0d2e34a82 SHA-1: fb4187eec0aef416526c35e7f71742e03e6435f0 SHA-256: e1c62fb8b7ee5b208872a82665b3a9179be25a36063792dadf5b68df08d7730e
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://traffset.ru/strik?keyword=acams+study+guide+english PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4393751/normal_5f937f48bf471.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382407/normal_5f943e46a9eb8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383804/normal_5f9881c4a389f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370264/normal_5f9f5b4a1c338.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369776/normal_5f90c78cc6a18.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365649/normal_5f8ba0b5cb0c6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368950/normal_5f9ea84ca843f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373986/normal_5f8fcf603015c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415326/normal_5fa59f3e2aa64.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393776/normal_5fab33fa2c435.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/8f379546-1c43-47d8-8d6f-279c447dd452/youth_in_revolt_book.pdfIn PDF document text
    • https://s3.amazonaws.com/wusigipufuvowix/canon_in_d_piano_sheet_music_easy_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bd9d2e46-698f-4417-abc0-b5975f6a55f3/film_elements.pdfIn PDF document text
    • https://s3.amazonaws.com/sojuravewi/kefuxozisevipesarana.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5dc44fe8-f515-48cc-83f1-091f989ab1c9/viganemugabibezesegodosev.pdfIn PDF document text
    • https://s3.amazonaws.com/genedonapubefe/ranaralunibamito.pdfIn PDF document text
    • https://s3.amazonaws.com/kimoweworape/kenwood_ddx470_owner_manual.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_off0000be0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBE0A 5348 bytes
SHA-256: 382e3d32ccfde63beae942c117f494c10d3d2037e438ba5469e88e89888b2992
font_01_sfnt_off0000d021.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD021 10208 bytes
SHA-256: 4a213a2f87f7136ba0caf54180770eddd99dc5e501f368fd7abcaa71f82e1e50