Malicious PDF — malware analysis report

Static analysis result for SHA-256 220c085d23a1c0b2…

MALICIOUS

PDF

38.0 KB Created: 2020-08-30 17:24:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3ed872adde6b327004df7786987cb307 SHA-1: 5f9d5b16e7419646e8c58332c5eacc6f2c4f929c SHA-256: 220c085d23a1c0b29a328d8d2884c1a6eb50b2d75ea5344051163b1ad313e2fd
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains this URL and numerous other links hosted on Shopify, suggesting a link farm or content-loading mechanism. The primary malicious URL is likely used to redirect users to a phishing or malware distribution site.

Heuristics 3

  • 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.
  • 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/wix?keyword=pdf+excel+%25C3%25A7evirme+online
    • https://cdn.shopify.com/s/files/1/0431/2861/9168/files/67529438728.pdf
    • https://cdn.shopify.com/s/files/1/0429/2893/0979/files/baldur_s_gate_descent_into_avernus_download_reddit.pdf
    • https://cdn.shopify.com/s/files/1/0432/2285/9944/files/zumamajateb.pdf
    • https://cdn.shopify.com/s/files/1/0428/3164/2780/files/fagugikini.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/16175378270.pdf
    • https://cdn.shopify.com/s/files/1/0439/1626/3592/files/96037603119.pdf
    • https://cdn.shopify.com/s/files/1/0429/1392/3228/files/75142680324.pdf
    • https://cdn.shopify.com/s/files/1/0434/2880/6806/files/1988_chevy_cavalier.pdf
    • https://cdn.shopify.com/s/files/1/0437/3577/7445/files/email_verifier_pro.pdf
    • https://cdn.shopify.com/s/files/1/0439/1393/7064/files/incinerator_specification_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0439/8609/2190/files/nio_salvaje_real_salvaje_uno_chris.pdf
    • https://cdn.shopify.com/s/files/1/0435/6331/9445/files/biology_class_12_cbse_notes.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000053df.bin
4365db5a5eecd32b8e3bf661bea3b455c330a93f4d7572b5bdbbc99a3d06b809		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53DF 5088 bytes
font_01_sfnt_off000064da.bin
dc477fee7d94add879721ea89f400f5d8df085f3a80f2c6c1ff6953561905cde		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64DA 11764 bytes

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