Malicious PDF — malware analysis report

Static analysis result for SHA-256 43fd35d5cfdab5f5…

MALICIOUS

PDF

53.4 KB Created: 2020-08-17 02:30:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: aa14997201506b165710dc7877830acf SHA-1: 7e2cbfbcbfeb2fd48cd6ffb7cc4aee12789cfd89 SHA-256: 43fd35d5cfdab5f5713d79c4333215971b30a1bc1af8dce1db0830b3cf3d30aa
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, a technique often used to obscure malicious destinations. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' specifically identifies a link to 'ttraff.com', a known malicious redirector. Additionally, the 'PDF_SEO_LINK_FARM' heuristic indicates a large number of external PDF links, many hosted on Shopify, which are likely part of a link farm designed to improve search engine ranking for malicious content or to distribute malware. No scripts were extracted from this sample.

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=capitalism+1+game In PDF document text
    • http://files.mysmellysocks.com/uploads/1/3/1/6/131637362/wigokafadawok_vigurotekusel_mukadezuzaz_sodumotawed.pdfIn PDF document text
    • http://files.dynamissconsultancy.com/uploads/1/3/1/3/131384583/fd1450.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/1/0432/4638/7367/files/jilometegek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/7992/0803/files/animal_word_search_hard.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1778/8830/files/vowemosemi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4417/5013/files/denotation_and_connotation_worksheets_with_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0013/3793/files/como_convertir_un_archivo_java_a_ejecutable.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8254/7361/files/74487622506.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0635/3823/files/paulo_coelho_libros.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4697/7179/files/10098075253.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5397/2633/files/53405298188.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6656/4507/files/advanced_bank_management_book.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_off000093aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x93AA 5000 bytes
SHA-256: 27767c3e31c85f876b233f6b5adda1d559be514f7588568e6b94fdddde4a7247
font_01_sfnt_off0000a4a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA4A4 10652 bytes
SHA-256: 42c97b3ebc12a163ea2d80499ee1cd27dcd8ae2564145fe93fe0d2bf4e3f7b04

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