Malicious PDF — malware analysis report

Static analysis result for SHA-256 505a65c234fbba97…

MALICIOUS

PDF

40.1 KB Created: 2020-08-09 14:31:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 98698ca4d6927024fe474bda14fcc636 SHA-1: 0cbd8466729df92cbdac217a3cb7736cec18989f SHA-256: 505a65c234fbba97a10fc844df59e0047c2d7a9282153551dae900f4701ebe90
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, also contains this URL and numerous other links to Shopify-hosted PDFs, suggesting a link farm or content-luring strategy. The primary malicious URL is likely used to redirect users to a malicious site.

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=brand+archetype+quiz+pdf In PDF document text
    • http://files.keyadigital.com/uploads/1/3/1/3/131379111/wirupejav.pdfIn PDF document text
    • http://files.joyfulnoisedoula.com/uploads/1/3/1/4/131453022/xuwagejelufezem.pdfIn PDF document text
    • http://files.nortecsmallbiz.org/uploads/1/3/1/6/131637311/balodekevezisusejup.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/1/0428/2574/4540/files/common_stocks_and_uncommon_profits_filetype.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2873/2314/files/fubirapurozi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2299/9964/files/betamethasone_davis_drug_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0034/6270/files/xeginulenemoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6716/3302/files/wemujiziretefumigixed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2625/0917/files/78552793787.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0500/8282/files/zaxudozazu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1411/0880/files/mifekebebivebizofupa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6965/1606/files/xetonupetubava.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2530/9604/files/kevamo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3467/3301/files/58213318079.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_off00005be5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BE5 5360 bytes
SHA-256: a04d0532b7de9799159922c68bc2cc75f697d30afababf19fc08f577d3dd638f
font_01_sfnt_off00006e2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E2F 11008 bytes
SHA-256: 1f8736065ce1d636b19ccd82b54f549b776c93fa71a136a0f65e3e5579d39966

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