Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6d6657a2296cf2a…

MALICIOUS

PDF

40.1 KB Created: 2020-08-26 20:44:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5d1ed291cf882e4dc75faaec2a218045 SHA-1: 20c2a04f50974c366f0cc212f9ce06866851700f SHA-256: b6d6657a2296cf2a2119c1ce9d390110782428591c525c544cf2c226b03156b6
120 Risk Score

Malware Insights

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

The PDF contains a link to a redirector URL, ttraff.com, which is flagged as malicious. The document body, though heavily obfuscated, contains the same URL and appears to be a lure related to a popular game, likely to entice clicks. The PDF also contains a large number of embedded links to Shopify domains, suggesting a link farm or SEO manipulation tactic to distribute malicious content.

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/pify?keyword=can+you+get+alakazam+without+trading+in+let%2527s+go
    • http://files.circusofillustration.com/uploads/1/3/2/6/132680976/8040071.pdf
    • https://cdn.shopify.com/s/files/1/0432/6221/4304/files/35506199080.pdf
    • https://cdn.shopify.com/s/files/1/0433/5697/9351/files/jikugumegep.pdf
    • https://cdn.shopify.com/s/files/1/0428/7306/1532/files/senojuweranunikegegusugo.pdf
    • https://cdn.shopify.com/s/files/1/0431/8350/5562/files/google_web_designer_template.pdf
    • https://cdn.shopify.com/s/files/1/0437/9354/7426/files/39940570532.pdf
    • https://cdn.shopify.com/s/files/1/0428/5281/0911/files/57809220213.pdf
    • https://cdn.shopify.com/s/files/1/0430/4489/6925/files/companies_using_triple_bottom_line_reporting.pdf
    • https://cdn.shopify.com/s/files/1/0433/6871/0300/files/18747913680.pdf
    • https://cdn.shopify.com/s/files/1/0431/4012/0733/files/zilap.pdf
    • https://cdn.shopify.com/s/files/1/0439/4647/5678/files/spotify_apk_free_premium.pdf
    • https://cdn.shopify.com/s/files/1/0430/8277/6727/files/45006309272.pdf
    • https://cdn.shopify.com/s/files/1/0431/6741/6488/files/63348195595.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_off00005f45.bin
ee4d6c0abbfbca50ad470a5d94c9777fadf3886e12e62ebb00897d537c07da3d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F45 5488 bytes
font_01_sfnt_off000071ee.bin
ce6141286b66b46e05d7dea59eaa7c7a79215b4c11477276901bf329a75ddfa5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x71EE 9904 bytes

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