Malicious PDF — malware analysis report

Static analysis result for SHA-256 47c84b8fd19cc1c2…

MALICIOUS

PDF

69.5 KB Created: 2020-08-12 01:14:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 083a3e7495b8b6f643467977cf78f6b2 SHA-1: fde3eeda7e323594d7515482fdd4e8870e7fd5a3 SHA-256: 47c84b8fd19cc1c2de29033586ae8e46a210a51729181bb8ac5eea98543775ab
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, also contains this URL. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many pointing to Shopify, likely for obfuscation. The ML classifier strongly indicates maliciousness.

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=fisiopatologia+do+cancer+de+prostata+pdf In PDF document text
    • http://files.katewhyte.ca/uploads/1/3/1/3/131380236/sefoxita.pdfIn PDF document text
    • http://files.jeniballdesigns.co.uk/uploads/1/3/1/4/131437799/zolafakeb.pdfIn PDF document text
    • http://files.elevatedaccounting.com/uploads/1/3/1/4/131408170/dawudamodajumij.pdfIn PDF document text
    • http://xurikaruz.notanothersupermum.com/uploads/1/3/2/3/132303382/robolatedizu-bigipajizud-bawubijibirapon-fufosonovorop.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/1/0428/6034/7551/files/importance_of_learning_by_doing.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1787/1266/files/behavioural_activation_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6300/0734/files/gepifonoxikogoxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2874/2298/files/wumutamapobanam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4291/3955/files/68199466099.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/6599/4392/files/complete_core_java_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8894/5064/files/32951482743.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7319/8497/files/algorithms_and_data_structures_in_python.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6332/6358/files/30078875178.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0004/5469/files/rekagirawukelasusibidon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kupenase.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_off0000d2eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2EB 5276 bytes
SHA-256: 7a415f91080ae0ec018844bcfd94c0395ff8448c25d4c29aebc7c4f39dc5eba9
font_01_sfnt_off0000e4ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4EA 10452 bytes
SHA-256: 2bfd30d00a428d6f4174741246b672b62f47dcb2022f968aed01fb6389844392

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