Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9d74a55a9bb7392…

MALICIOUS

PDF

35.7 KB Created: 2020-08-04 18:52:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8d28da6e0d15812f71e4aa008dce167b SHA-1: 2bfcbedba8a654b60081a9e9df07b00feab3d943 SHA-256: d9d74a55a9bb7392bab1156723872553f0185ca10c501cd191a7215b71601ddc
194 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with many links pointing to Shopify domains, but one critical link to `ttraff.cc` which is flagged as a malicious redirector. The document body text, though partially corrupted, includes the phrase 'Birth certificate correction form pdf kerala' and the malicious URL, suggesting a lure to trick users into clicking the link. The presence of numerous PDF links indicates a likely attempt to distribute further malicious content or engage in SEO manipulation for malicious purposes.

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=birth+certificate+correction+form+pdf+kerala In PDF document text
    • http://files.eastshorecf.com/uploads/1/3/1/4/131407705/lanaj.pdfIn PDF document text
    • http://files.team-tubes.com/uploads/1/3/1/1/131164272/1306239.pdfIn PDF document text
    • http://files.activecare.co.nz/uploads/1/3/0/7/130740175/9983594.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/1/0432/2040/2337/files/33337711215.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7113/6154/files/70994233707.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7705/6165/files/pijeterir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2597/9813/files/zukugexon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7085/7122/files/9038719087.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/6385/7572/files/one_more_night_busy_signal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0369/0660/files/materials_engineering_science_processing_and_design.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/31240515614.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/84005007378.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1026/8064/files/73399327257.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3551/6318/files/woviwipepusine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5131/0488/files/kedinosafikibozo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2247/3624/files/24810377138.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 3

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_off00004ead.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4EAD 5332 bytes
SHA-256: 1be93258cbf8466023052b11ffe1066f528466d63e2b4a8c87dc2d27d6251a2f
font_01_sfnt_off000060a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60A7 9740 bytes
SHA-256: 282eb0f45ebd6e5890408261e60da43bca9c4f298118619c1c0bdeee86a4beee

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