Malicious PDF — malware analysis report

Static analysis result for SHA-256 78b86b11286524a3…

MALICIOUS

PDF

67.1 KB Created: 2020-08-07 19:15:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 40e23ea79606b56484cec94aad012174 SHA-1: 73742bb13d9ac829a7d5d4c154a8c142eb3b2b70 SHA-256: 78b86b11286524a36b1994ea009a91835c4de8492892e55ac39a73641ea93338
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF document contains numerous links designed to appear as legitimate resources, but they ultimately redirect to malicious infrastructure, specifically the `ttraff.cc` domain. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector, suggesting an attempt to lure users into clicking on it. The presence of multiple SEO-optimized links further indicates a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
    Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
  • 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://ttraff.cc/wb?keyword=ethereum%20blockchains%20digital%20assets%20smart%20contracts%20pdf In PDF document text
    • http://gilog.cindyalewis.com/uploads/1/3/0/8/130814017/702a46212.pdfIn PDF document text
    • http://files.shastasjourney.com/uploads/1/3/0/7/130775959/6108419.pdfIn PDF document text
    • http://files.trefoilintegrity.org/uploads/1/3/2/3/132302718/5837982.pdfIn PDF document text
    • http://files.cefdauphin.com/uploads/1/3/1/8/131857626/zudinajavo_redisowufun_rilalos_fuzara.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/1/0431/2599/7722/files/double_buffering_java.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6991/5814/files/94861537165.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1261/1481/files/cmd_commands_for_windows_7_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4416/6037/files/excel_2020_tutorial_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3293/6605/files/gakurewukifuru.pdfIn macro / runtime command snippet
    • https://cdn.shopify.com/s/files/1/0437/8145/6023/files/beetroot_soup_recipe_minecraft.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0703/1966/files/zevuvosatoja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5170/3706/files/tupegobimaguvef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5552/1700/files/46586051687.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9378/6791/files/75742188177.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4038/8758/files/dobitimeligibujo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5612/8412/files/22282687841.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6382/0959/files/32835757313.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/3644/6613/files/manuel_s_vintage_room_menu.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_off0000c63d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC63D 5728 bytes
SHA-256: 782ede02143368edac252da81eeb22d89e007910562ccd37d858abdb8c0bb143
font_01_sfnt_off0000d993.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD993 10880 bytes
SHA-256: cbbca86a28eaf62c55238561b4acc3bb8b8e43790866344e66fc35d87f13ade8