Malicious PDF — malware analysis report

Static analysis result for SHA-256 c56a068ac8d6d323…

MALICIOUS

PDF

41.3 KB Created: 2020-08-06 21:57:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 98b255599bd6b8fa0ad9fe841a35990b SHA-1: eb9ee750fb85cca50ac73214cfefc0d61c9dd01f SHA-256: c56a068ac8d6d323d40278b5472184b7b364a7bc42030aaa1da27c3f8703f96d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links, many of which are SEO-optimized and point to PDF files hosted on Shopify. One critical heuristic firing indicates that a link redirects to known malicious infrastructure at 'https://ttraff.cc/pify?keyword=badminton+rules+for+doubles+pdf'. This suggests a link farm or SEO poisoning attack designed to funnel users to malicious content. The ML classifier also strongly flagged this PDF as malicious.

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/pify?keyword=badminton+rules+for+doubles+pdf In PDF document text
    • http://files.babybegreendiaperservice.com/uploads/1/3/0/7/130775310/joxofaxifajoxu_tewalefel.pdfIn PDF document text
    • http://files.nayloreagles.com/uploads/1/3/0/8/130874422/7648426.pdfIn PDF document text
    • http://vibugus.darabitler.com/uploads/1/3/1/4/131407406/vebunavag-muzupawam-mevelemepi.pdfIn PDF document text
    • http://files.stlukemt.org/uploads/1/3/1/4/131455722/7487716.pdfIn PDF document text
    • http://files.themagiciansindicator.com/uploads/1/3/2/6/132681384/b8eaf34186cf7.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/1/0438/4908/9186/files/52471867327.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3518/1734/files/16845634465.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9984/6824/files/windows_filename_invalid_characters.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8488/2844/files/nuzugejew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3791/7345/files/tevov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7998/1470/files/executive_producer_contract.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6108/3288/files/fortran_programming_language.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3754/1031/files/zesumazekamoron.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/17524121831.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4630/4920/files/29994310782.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0763/9711/files/55803537426.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7988/3170/files/vodisiwekuvukuj.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 6

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_off00006473.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6473 5376 bytes
SHA-256: 3aa1d63abed47a3b9b693a30a5297e1f2107c6ed2c1dd24315311e1c8eeea3e5
font_01_sfnt_off0000769b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x769B 9824 bytes
SHA-256: 86e0da595a3ad961f16e9c88f200b96640aa0a019cb2fe65950eb45557dde6fd

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