Malicious PDF — malware analysis report

Static analysis result for SHA-256 08403f92c2418f36…

MALICIOUS

PDF

68.7 KB Created: 2021-02-23 06:25:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 1b240b2ab8263fcf482e2de6a5bfa014 SHA-1: dd5b2383dd21bbff04f8cbb53a37204af05a4a61 SHA-256: 08403f92c2418f36599554749096aae175aa56726d6d6aedf78762d6c5b0acf1
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://jottigo.ru/wix?keyword=the+indian+cinderella+analysis PDF link annotation
    • https://dogopakuva.weebly.com/uploads/1/3/4/6/134698139/podenuju.pdfIn PDF document text
    • https://serabonileraso.weebly.com/uploads/1/3/4/4/134444783/8694620.pdfIn PDF document text
    • https://biwakegexenulu.weebly.com/uploads/1/3/4/4/134437141/ab5aba.pdfIn PDF document text
    • https://cdn.sqhk.co/sesumaku/M6jggeb/78614499944.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/kotenu/smithing_lvl_guide_osrs.pdfIn PDF document text
    • https://s3.amazonaws.com/risisipajole/99801049825.pdfIn PDF document text
    • https://s3.amazonaws.com/wiremeresegikon/23416994136.pdfIn PDF document text
    • http://ladinuronabo.epizy.com/what_is_scary_stories_to_tell_in_the_dark_book_about.pdfIn PDF document text
    • https://s3.amazonaws.com/remufuzu/anydesk_ios_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/lowebemuwojiso/6353899310.pdfIn PDF document text
    • https://s3.amazonaws.com/vebenok/vidimurikekiwupoposu.pdfIn PDF document text
    • https://s3.amazonaws.com/fotepopunaj/venn_diagram_question_with_answer.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_off0000d25a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD25A 5080 bytes
SHA-256: 0c6ae6da6face72de13a1b643ab7a9e46c8db256024f6d521f8d8e415816e9c9
font_01_sfnt_off0000e3a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3A3 10120 bytes
SHA-256: 9213a1082181a840560e63f9b0f5e4ef245d3be2ef44b97e533de1b196da084a