Malicious PDF — malware analysis report

Static analysis result for SHA-256 d243d7c68ee957cc…

MALICIOUS

PDF

38.9 KB Created: 2020-08-25 09:43:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4f06b611100050a7ba698679839232e7 SHA-1: bac4afa133b1e11b1b90a7af7fd6078b59e70d56 SHA-256: d243d7c68ee957cc4c9bfbcca0d3ecbd90480ae43406b0ead5d81a7cf1c0e2b6
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 Shopify domains, but one critical link redirects to 'ttraff.com', a known malicious redirector. The document body mentions 'Gwent the witcher 3 guide', suggesting a lure to entice users to click the malicious link. The presence of a malicious redirector indicates the intent to lead the user to a harmful destination.

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.com/pify?keyword=gwent+the+witcher+3+guide In PDF document text
    • http://files.zomibaptistchurch.com/uploads/1/3/1/8/131871740/c5ef5011cfc752e.pdfIn PDF document text
    • http://files.bluewrenadventures.com/uploads/1/3/1/4/131453401/04d3e0c7.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/1/0435/5201/4491/files/rails_migration_drop_table.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5356/2526/files/qualified_audit_report_sample.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6263/2360/files/jubusafodis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6609/6806/files/zikat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1146/5631/files/31032592664.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6913/6284/files/nemogawagubopotadexabi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8402/9854/files/zimegogorawelusowar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4697/7179/files/nemomenasabaxipojetojetu.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 5

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_off00005d27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D27 5068 bytes
SHA-256: d0ed1f6c152ca86e0f47ef6450253d0da5067c94df1cbbc0565e02b01e967e00
font_01_sfnt_off00006e79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E79 9672 bytes
SHA-256: 24e7fb5c0423690c79a0d0cb25279db359feb8ace2cd91fdc6d2c40de823e983

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