Malicious PDF — malware analysis report

Static analysis result for SHA-256 5525deba33995979…

MALICIOUS

PDF

32.9 KB Created: 2020-10-12 19:13:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-20
MD5: 55042c1bd0562fb538f368b783de17a9 SHA-1: eef258d47f9450b919fc7731bd945e291f9257ed SHA-256: 5525deba3399597956c2f8558a7ab9bd83e78bc06d1244da9063e80b151c1f1a
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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://gettraff.ru/strik?keyword=kwikset+kevo+installation+guide In PDF document text
    • https://site-1036627.mozfiles.com/files/1036627/pesokemufalovitosinat.pdfIn PDF document text
    • https://site-1043167.mozfiles.com/files/1043167/28177059628.pdfIn PDF document text
    • https://site-1043170.mozfiles.com/files/1043170/famiwude.pdfIn PDF document text
    • https://site-1039528.mozfiles.com/files/1039528/zagolovumediduxup.pdfIn PDF document text
    • https://site-1038631.mozfiles.com/files/1038631/64624374394.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000046f0.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000046f0.bin)
    • https://cdn.shopify.com/s/files/1/0483/8686/7368/files/megabus_to_las_vegas_review.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0485/8871/8245/files/xagugadizazevipekobiga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8588/1759/files/kiseputebafapojij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/7371/8422/files/finding_missing_angles_complementary_supplementary_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/5508/7267/files/summoners_war_mav_replacement.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/14f74c85-bcfd-452c-af7c-0f25927bbdfe/kalipijozanurekud.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3ba95319-101b-493c-908c-b90a04a375dc/vopuvebuz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dd1865e8-af24-442e-83b7-aef5afeb1ad0/28681101520.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3d668c6a-243e-4c88-aa16-b9be019883f9/lafarowofufatididikituz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9236/8796/files/free_download_injustice_gods_among_us_mod_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2937/2832/files/57850359103.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 extracted file (font_00_sfnt_off000046f0.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000046f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46F0 5084 bytes
SHA-256: 2d5aea6abeadf2ee513f6dc403d95a6b60b096a04247dcf54f69853f0083400c
font_01_sfnt_off00005865.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5865 8896 bytes
SHA-256: 976e24adaacb5d64296996ec84e67c0aacf091716178aeaec7311faa22fbba69