Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6d8c455ce4664aa…

MALICIOUS

PDF

49.2 KB Created: 2020-08-21 10:18:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 12f54695491e6b4f549ede33c8b643d6 SHA-1: c762f21e43fce7363c10a10737fac91a6bf014f8 SHA-256: a6d8c455ce4664aa0d96ea82327015b5a9d93d09ef985592cc06d413d582b2d3
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, disguised as a free birthday card template. This redirector likely leads to further malicious content or exploits. The document also hosts a large number of other PDF files, many on Shopify domains, suggesting a link farm or SEO poisoning attempt to improve search engine visibility for malicious links. No scripts were extracted, but the primary malicious activity is the redirection to the ttraff.cc URL.

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=funny+birthday+card+template+free+printable In PDF document text
    • http://files.jonathantsao.com/uploads/1/3/1/1/131164452/3927805.pdfIn PDF document text
    • http://files.blumeyerinvestmentpartners.com/uploads/1/3/0/7/130775434/1111605.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/1/0435/3438/5303/files/human_eating_lady.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3486/9921/files/28246246597.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/9908973296.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7379/8306/files/nejesulo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5507/7790/files/cardiopatia_isquemica_aha.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7441/2949/files/bazip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4341/3407/files/domino_s_pizza_bahrain_menu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7720/6165/files/mississippi_state_abbreviation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9926/8003/files/huawei_p30_android_10_beta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2398/3015/files/ssh_tunnel_background.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5759/4016/files/29801814169.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 2

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_off00007b09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B09 5412 bytes
SHA-256: 6daf3f94303505556a3325b1ceda05ff182a2d572b89ecabef41cb240f4acbcf
font_01_sfnt_off00008d43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D43 13612 bytes
SHA-256: 9adff0e349c4e8004e47b0db2a7202e0c246547ccaf21e3a6450a68c58f74b4d

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