Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c081a7d14381e59…

MALICIOUS

PDF

60.5 KB Created: 2020-11-14 00:38:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: edc13eb32a222fb06871757b6791fe42 SHA-1: 9c8ea9f47f34da22491b676d9d3b922dba80c710 SHA-256: 7c081a7d14381e5961260ecf3ec2dc9d7b6054723966156426e15de08e5c991e
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://traffset.ru/aws?utm_term=el+aprendiz+de+brujo+pnl+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4379374/normal_5f9d1b337c179.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488807/normal_5fabf98eb9151.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479454/normal_5fa64453cde90.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391326/normal_5fa5e7c9c720f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366347/normal_5f8c37cc6b950.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368772/normal_5f87e7a04c9f6.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/sefipa/unconventional_definition_in_art.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bb2365ae-f75b-4fc1-9b1b-7cfc1b0aa013/18670195902.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a9df7c22-9f08-4944-a4e8-7befd5efafd8/fender_amp_buyers_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8ccbf60e-e541-49b8-921d-b067176f343b/48273846262.pdfIn PDF document text
    • https://s3.amazonaws.com/fapaga/crystal_reports_redistributable_2008_x86.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4fba6b8f-48e1-4e34-a781-d168fd4f4440/nuwumuvelidabogofomegi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a728e598-199c-4c9a-8378-d2536219e08b/54636304105.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8ee2ba40-32ee-48c4-b8dd-820c418e720b/o_poder_do_ritmo_2_filme_completo_dublado_gratis.pdfIn PDF document text
    • https://s3.amazonaws.com/jajoxulabojaso/45534731894.pdfIn PDF document text
    • https://s3.amazonaws.com/muvemasoxaji/bowakebexemoganomolef.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_off0000b1a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB1A1 5080 bytes
SHA-256: 21f8ecc45fdf29c2eb7af43c119881078b971ee7e67fc3690d59e9d01f8dfb7b
font_01_sfnt_off0000c303.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC303 9864 bytes
SHA-256: 759c82087dd4c0e5370ded575bd3e551eb599f349ca6cd171bf74ec344134d5e