Malicious PDF — malware analysis report

Static analysis result for SHA-256 e10f65ed22325a11…

MALICIOUS

PDF

48.4 KB Created: 2020-10-28 07:09:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 6ecf030a6458c4ebbca6d58031df3d68 SHA-1: e1112c55500737529b4cc0c4222e00d2a7ecf353 SHA-256: e10f65ed22325a11c34f1f380cfc816e9e7f67505eefeb93fdcb553742fce46b
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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://ggtraff.ru/123?keyword=spontaneous+healing+pathfinder+kingmaker In PDF document text
    • https://tugarekuxu.weebly.com/uploads/1/3/4/3/134307697/2305233.pdfIn PDF document text
    • https://nipaxibovaj.weebly.com/uploads/1/3/1/3/131379211/6406473.pdfIn PDF document text
    • https://guxewegitonis.weebly.com/uploads/1/3/4/3/134336720/tubiguwekota.pdfIn PDF document text
    • https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/lonevu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366407/normal_5f98167fca2ef.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417809/normal_5f98ef2e03024.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366374/normal_5f8b69c68eebd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373271/normal_5f8cf30111a35.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375355/normal_5f8e800bd2705.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/7423/9646/files/43103846716.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/8526/1717/files/12953796166.pdfIn PDF document text
    • https://s3.amazonaws.com/sugaguxagu/sejarah_neoliberalisme.pdfIn PDF document text
    • https://s3.amazonaws.com/xenavuxa/genetics_and_molecular_biology_of_entomopathogenic_fungi.pdfIn PDF document text
    • https://s3.amazonaws.com/jamokaroxoj/32413233272.pdfIn PDF document text
    • https://s3.amazonaws.com/wilugugo/86889933906.pdfIn PDF document text
    • https://s3.amazonaws.com/susopuzupure/envision_math_2._0_grade_5_answer_key.pdfIn PDF document text
    • https://s3.amazonaws.com/gotijejaj/biology_in_hindi_question_and_answer.pdfIn PDF document text
    • https://s3.amazonaws.com/tadovu/75558616491.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/77b1e0cd-500a-4e34-9963-f6490a664bb5/pijirawavitada.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f71b062a-136f-49da-874a-cd9b6e6c7fa7/86214799013.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/32d31cf4-f97e-4fc4-b045-4365860cb17a/love_language_quiz_for_teens.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1caee9b7-5ae8-40ac-80ea-8832284277bc/75049669490.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bc20ef87-3a5d-420b-9cca-e953e41aad79/wuwofopiwilazafixuvaxuzod.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_off00007da6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DA6 5620 bytes
SHA-256: a7e4ccc2b9cc8a859f7e6473909540619ae89d9ce5c0d2a32670945e1bd86056
font_01_sfnt_off0000908d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x908D 10296 bytes
SHA-256: 983bf9a4e4e58182183449c6a4a37cceba7a764ad8b0bfe9a89840d9acc78aec

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