Malicious PDF — malware analysis report

Static analysis result for SHA-256 4eda214c9e367edc…

MALICIOUS

PDF

40.2 KB Created: 2020-08-17 03:15:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 81ecfe7cac8e506b289b9efea674fa24 SHA-1: 990b4fb7219a0c30d2e88985b28e804cbd94010d SHA-256: 4eda214c9e367edc352f3e12fc655d03845d35d85d7a8ca9d41e8ef03eb9f73e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a heuristic firing for a malicious redirector link, which is also present in the document body. The link leads to 'https://ttraff.ru/pify?keyword=powerpoint+template+green+technology', suggesting a lure to download a malicious file or visit a compromised site. The file also exhibits characteristics of a link farm, with numerous embedded URLs pointing to various PDF documents, likely for SEO manipulation to improve search engine ranking for malicious content.

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://ttraff.ru/pify?keyword=powerpoint+template+green+technology In PDF document text
    • http://files.theathomeexperience.com/uploads/1/3/1/4/131409135/famupixani-wizamabubuxiro-tilosunon-dinifuvu.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/1/0438/3100/1250/files/auditing_and_assurance_services_16e.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/8138/8452/files/fantasy_football_2013_cheat_sheet_ppr_league.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0994/9348/files/world_countries_and_capitals_in_tamil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/9713/1925/files/computer_architecture_and_assembly_language_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4402/8068/files/tidomeribagafa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4738/6264/files/18263718265.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2630/0575/files/wiponiza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4615/0039/files/24179997429.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9009/1940/files/cosine_taylor_series.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4708/3429/files/646309764.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6544/9365/files/68283496298.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/0642/2184/files/18983998089.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2177/0656/files/attached_book_download.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

Related samples 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006035.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6035 5364 bytes
SHA-256: f6daa6c800a8b909be5148ac3abcf00d750901813690df80118791594521e574
font_01_sfnt_off00007251.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7251 9796 bytes
SHA-256: 155d3c5caeee5bd3482c6e33f26d7895cab2a69d1c8dabe9a54e8c561c50b214

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