Malicious PDF — malware analysis report

Static analysis result for SHA-256 62440b44cf7c0e61…

MALICIOUS

PDF

43.4 KB Created: 2020-10-24 15:10:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-28
MD5: 6347938d54c544df54aca9e49fcde15f SHA-1: 46ce663e5cf9f8740452da966aacd7da17e78f41 SHA-256: 62440b44cf7c0e6122c46c20c45bc7cac4b829e92ba9073aa1118a565da990c6
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/wb?keyword=honda%20odyssey%202014%20repair%20manual In PDF document text
    • https://cdn-cms.f-static.net/uploads/4374698/normal_5f8d077dd049e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378153/normal_5f9106607a293.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006b58.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006b58.bin)
    • https://s3.amazonaws.com/faluzotixupi/cendrars_l_homme_foudroy.pdfIn PDF document text
    • https://s3.amazonaws.com/tetazino/zenijinakaxowuneboganoked.pdfIn PDF document text
    • https://s3.amazonaws.com/levumoduf/kagoxuvolibuloposoril.pdfIn PDF document text
    • https://s3.amazonaws.com/tizowodifi/91769673835.pdfIn PDF document text
    • https://s3.amazonaws.com/fibesezati/20993112212.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/daa1b3f8-7d14-44c6-8306-7c40a365faca/ligaganamom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9667/8301/files/97059971870.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/9931/1268/files/wood_slab_coffee_table_top.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5417/7185/files/mejor_android_tv_box_2020_xataka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/9484/4585/files/sokoziwatidutabuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/4517/4439/files/veteran_apk_download_for_android_latest_version.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9c8932a8-fd81-4ac1-9afe-cbff789541f5/84160795481.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7c75cd36-f5e9-4d3e-aee1-321ba39fa4ae/rimawomavolotodexenebate.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8c014163-fb93-4585-89e1-d12731c04cf9/14652448418.pdfIn PDF document text
    • https://s3.amazonaws.com/duzexefemosaxe/ripak.pdfIn PDF document text
    • https://s3.amazonaws.com/tuzakifezara/77073782695.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_off00006b58.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006b58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B58 5584 bytes
SHA-256: 9fa52bd1f0921bb406b87a882149315b02b2483f9841f6cc44e9c6af359cb13e
font_01_sfnt_off00007e4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E4A 10124 bytes
SHA-256: 390ce07f3e76d7bffd8a816072f2767573eb06c9bef28bd3efde71fc6457bd62