Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0c243a74905332c…

MALICIOUS

PDF

63.0 KB Created: 2020-08-13 21:55:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7d1c8949014eec094b70c0da78af51c2 SHA-1: 5625a2f0bd2c2e1eb47bd6be60c2a28872ec1a29 SHA-256: f0c243a74905332c8c4795cfa7e41d7832e77b0525418d194f9a45e4f8220a50
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell 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, suggesting a lure to a malicious site. The PDF also exhibits characteristics of a link farm, with numerous external links, many pointing to Shopify domains, likely for SEO manipulation.

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=best+email+platform+for+affiliate+marketing
    • http://files.moreheadtheatre.org/uploads/1/3/1/4/131438190/terematotek.pdf
    • http://files.latherandsage.com/uploads/1/3/0/7/130740442/dosabisefax_monusav.pdf
    • http://viwigiwuv.bluecanoedigital.com/uploads/1/3/0/7/130775897/51fb2d666c5f551.pdf
    • http://files.impressivedfw.com/uploads/1/3/2/6/132681482/tojiverunexob_panijijifola.pdf
    • http://fabonizek.wetlandshydrology.com/uploads/1/3/1/3/131378960/kesodajad.pdf
    • https://cdn.shopify.com/s/files/1/0434/9024/6822/files/buffalo_wild_wings_menu_sauces.pdf
    • https://cdn.shopify.com/s/files/1/0447/8782/6854/files/14245562755.pdf
    • https://cdn.shopify.com/s/files/1/0432/4166/8772/files/xulelepuxosajulotugime.pdf
    • https://cdn.shopify.com/s/files/1/0430/0092/2261/files/55815088097.pdf
    • https://cdn.shopify.com/s/files/1/0439/0119/0299/files/16228493641.pdf
    • https://cdn.shopify.com/s/files/1/0430/0426/4602/files/selenium_open_new_tab_python.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zexula.pdf
    • https://cdn.shopify.com/s/files/1/0431/0790/9794/files/genetics_book_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/3886/6593/files/fugisiwagu.pdf
    • https://cdn.shopify.com/s/files/1/0428/3976/9254/files/64867965495.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_off0000b6b9.bin
62a9fb32cb9a66038ca08055bc33edae7739cd56e83d1653537213e76e9d5672		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB6B9 5332 bytes
font_01_sfnt_off0000c8c8.bin
750063af0fef94cb9a1be12bcc0981aeb41714a1367a811ee2bade9ddc640375		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC8C8 11264 bytes

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