Malicious PDF — malware analysis report

Static analysis result for SHA-256 51964806fd14610d…

MALICIOUS

PDF

42.4 KB Created: 2020-08-25 07:13:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 627545429405de18ea3985dfbd4fc7a3 SHA-1: 84c97a3d8640068eb91cae0f7e515ae364c1ff81 SHA-256: 51964806fd14610df9cbf78575d007d22ddbf4c22773c834a86705cdee5b21d8
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF document contains a link disguised as 'Fnaf movie casting sheet' that redirects to malicious infrastructure at ttraff.ru. The document also functions as a link farm, embedding numerous links to other PDFs hosted on Shopify. This suggests a social engineering tactic to drive traffic to potentially malicious sites or to obscure the true destination of the initial malicious redirect.

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=fnaf+movie+casting+sheet In PDF document text
    • http://files.confit.co.nz/uploads/1/3/0/9/130969402/sitefibijulef-rugijesotokuda.pdfIn PDF document text
    • http://files.catgiles.co.uk/uploads/1/3/0/9/130969166/0f37458f31524df.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/1/0433/5111/3887/files/pebisipivemikudamutop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9644/6878/files/81598123885.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0006/9285/files/lumirademosamularezaxoja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0718/8898/files/96688109730.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9897/8971/files/emotional_intelligence_books_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9614/6074/files/escala_bristol_heces.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2260/4695/files/breadboard_layout.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/9467339244.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0464/3124/0344/files/20693309966.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4819/8556/files/regoxirafi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/9824/7069/files/what_is_insurable_risk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3040/5535/files/78409123123.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 1

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_off000067a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67A4 5184 bytes
SHA-256: e8cebc559c6254c3bd5ea2c4b6be1b0183b40dff355ecd52896b2c623aa93442
font_01_sfnt_off00007936.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7936 10524 bytes
SHA-256: 61e2a4af80bc71d3aa6b56671eace72a20f45a78a55f157fbc04b175e827329e

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