Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2c8e8754b37d915…

MALICIOUS

PDF

44.4 KB Created: 2020-08-17 11:01:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4047f4b50ac66a54d5af72dadea8ec0b SHA-1: 68f919360bf98415ecb5263ce9cdd4c12901a36c SHA-256: d2c8e8754b37d91505cc2d5713ad5739fefdd069b201b04487c806522d68bab5
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to Shopify domains, but one critical link redirects to a known malicious domain, ttraff.cc. The document body, though heavily obfuscated, contains the same malicious URL. This suggests the document is designed to trick users into clicking the malicious link, likely leading to further compromise.

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.cc/pify?keyword=myers-+briggs+personality+test+pdf
    • http://files.mynastybath.com/uploads/1/3/0/7/130775441/rapukiv_mutobimi.pdf
    • http://zowoz.valeriesavarie.com/uploads/1/3/0/7/130775403/8200025.pdf
    • https://cdn.shopify.com/s/files/1/0434/4211/0625/files/how_to_calculate_variance_in_r.pdf
    • https://cdn.shopify.com/s/files/1/0439/0410/6651/files/lojikunazerato.pdf
    • https://cdn.shopify.com/s/files/1/0431/1685/5453/files/kiwisenesakokudibot.pdf
    • https://cdn.shopify.com/s/files/1/0440/8541/1990/files/81874617780.pdf
    • https://cdn.shopify.com/s/files/1/0437/6992/1690/files/zoromexepewuzimat.pdf
    • https://cdn.shopify.com/s/files/1/0430/3696/7063/files/discord_how_to_screen_share.pdf
    • https://cdn.shopify.com/s/files/1/0431/5702/9019/files/xosigifivet.pdf
    • https://cdn.shopify.com/s/files/1/0431/9690/7678/files/your_love_is_relentless.pdf
    • https://cdn.shopify.com/s/files/1/0429/3401/0015/files/fixinezuwi.pdf
    • https://cdn.shopify.com/s/files/1/0429/2172/2015/files/nefokexutidokexosizobof.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_off000070f7.bin
0ab85fcbc7a3cadd0caa74e642f41d34ff1ad2c5117adf5ed7e98ce95ef38aef		 pdf-font-stream PDF embedded font (sfnt) at offset 0x70F7 5488 bytes
font_01_sfnt_off000083b8.bin
e1f1b2cda3abf3e99ecf3e5fc3ca21ba8192f5fccac3845c9f9eff7b2c228a9d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x83B8 9796 bytes

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