Malicious PDF — malware analysis report

Static analysis result for SHA-256 78292b1d56fa2d5a…

MALICIOUS

PDF

40.1 KB Created: 2020-10-13 00:57:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-16
MD5: 2a0893b25cdfe42ae6a5adfdd3985c08 SHA-1: d9e0bc532517bc71ad78c2dc48d6ce97176b6553 SHA-256: 78292b1d56fa2d5a13260c933b1ca31aa30ceb37b5b9237b3531d8769a1517e3
154 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.
  • 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.
  • Cloud document impersonation lure medium SE_CLOUD_DOC_LURE
    Document impersonates a cloud file-sharing service such as SharePoint, OneDrive, Google Drive, Dropbox, Box, or Microsoft 365 and asks the user to open, verify, or access a shared document
  • 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/strik?keyword=roblox+download+android+1 In PDF document text
    • https://site-1042889.mozfiles.com/files/1042889/56978966346.pdfIn PDF document text
    • https://site-1039435.mozfiles.com/files/1039435/23673602124.pdfIn PDF document text
    • https://site-1036812.mozfiles.com/files/1036812/32751497841.pdfIn PDF document text
    • https://site-1044453.mozfiles.com/files/1044453/berujaneriraxiwul.pdfIn PDF document text
    • https://site-1036969.mozfiles.com/files/1036969/lokamogarukukuf.pdfIn PDF document text
    • https://site-1043260.mozfiles.com/files/1043260/32145087166.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/a3d65ba0-5ccd-416b-93f3-e1aebae547af/58318671128.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a4ebf36f-b517-4230-80bf-bae0efdf4490/lozuxunewezudenevoxujewi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/92316cd3-1950-480d-a278-da1e4fe6e537/24663959468.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5640265c-a9cd-4817-988d-677052f6c176/94445709027.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b7362f61-5ad5-4acf-84ab-6189f7f92348/pekonopevorutu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2a556ad4-85ca-449e-a361-47f852667118/xatimesekorinoworeninexog.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a6152997-343e-49e9-85b1-b62a981ae602/zozakuzi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/79380718-0be6-4a6d-8d27-ac5cd1bb9ba3/rerone.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_off000060dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60DC 5000 bytes
SHA-256: 2f1fcd4f8ac4a9ad73fdd50a641a0c9f2e52231f393eb7d557db18aac2507539
font_01_sfnt_off00007207.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7207 10032 bytes
SHA-256: 56fa17304ccd4aab44af360f963910bef76ce5a489842dfab6d1ef02141b837c

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