Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed0abee9b444e1b7…

MALICIOUS

PDF

47.5 KB Created: 2020-08-07 13:38:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6869f482b21accfd789890eddad651bb SHA-1: 0626b5178efbe07de3d4e50cabf923adad8c76f7 SHA-256: ed0abee9b444e1b76cb9226e73b525a37ce1ffb140ac83c359ec57e479dc927e
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external resources. One critical heuristic firing indicates a link to a known malicious redirector, which is further supported by the presence of the URL 'https://ttraff.cc/wb?keyword=top%20biography%20books%20pdf' in the document body. This suggests the document is designed to trick users into visiting malicious infrastructure under the guise of providing free book downloads.

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.cc/wb?keyword=top%20biography%20books%20pdf In PDF document text
    • http://texigonu.discoverthebooktt.org/uploads/1/3/1/3/131381428/414fef85b7e12.pdfIn PDF document text
    • http://files.cedarspringschristianchurch.org/uploads/1/3/1/4/131483445/8290315.pdfIn PDF document text
    • http://bufeget.documentdesignandcreation.com/uploads/1/3/2/6/132695278/luvep_puzaru.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/1/0431/3966/1981/files/basic_english_grammar_book_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0252/7895/files/baixar_bncc_educao_infantil_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1047/3633/files/nuwaras.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8015/5289/files/17851216771.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7664/9127/files/baraleninipudek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0635/9713/files/kikeguxidulewopitediguku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3785/9741/files/88685681561.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4884/3934/files/nagubekodiga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8305/4757/files/34705794782.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9587/6003/files/90186890299.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/37237973095.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3393/5515/files/benjamin_constant_livres.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_off00007c3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C3E 5524 bytes
SHA-256: a49f0c17136e1a723bd9256945cf5c5eb8bdd3d22a937a889a7e96bf5042a679
font_01_sfnt_off00008f08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F08 10088 bytes
SHA-256: dede2b6df9d6dcc0ac47480ec324d9c29b4eab80f360d8abbf00e56e25a7d582

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