Malicious PDF — malware analysis report

Static analysis result for SHA-256 f36bfb9a79dc67d9…

MALICIOUS

PDF

39.1 KB Created: 2020-08-20 14:17:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fd477e1ad1551d1db8f2585c404380ab SHA-1: 40cadcb387b2901fda7d95e0c0e6eefbcb34c197 SHA-256: f36bfb9a79dc67d920649758d7c69e928a0dfb474c82051d94d64615efb053d0
194 Risk Score

Malware Insights

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

This PDF file contains a significant number of embedded links, many pointing to Shopify-hosted PDF files, which is indicative of a link farm. One critical heuristic identified a link to a known malicious redirector, ttraff.com, suggesting a potential distribution or redirection mechanism for malicious content. The ML classifier also strongly flagged this PDF as malicious.

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=items+needed+list+template In PDF document text
    • http://files.rachelsvineyardtucson.org/uploads/1/3/1/3/131383664/0714680.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/1/0433/0687/7080/files/dejozetopugewafapo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9940/5979/files/kerib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0182/2875/files/free_marketing_plan_template_for_small_business.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0459/1733/9797/files/chaosium_character_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9515/5105/files/53220891526.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1534/7103/files/58424858031.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/80804151078.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8405/3669/files/born_not_made_the_entrepreneurial_personality.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5050/7167/files/zebirotonijuwefiguzil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7742/5565/files/28156158351.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8330/8955/files/27145099210.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9191/1066/files/bowling_score_calculator.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 8

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_off00005d78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D78 4948 bytes
SHA-256: dee86f5b7d545198626d5a7f1d7a9ec792b039683ab44a21cbcb5c599526aede
font_01_sfnt_off00006e30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E30 9928 bytes
SHA-256: be7749899e0deda1b9eeb51351376a97810d0f55670e36556353fa04417c43b0

Open this report in the interactive analyzer, or submit your own file for analysis.