Malicious PDF — malware analysis report

Static analysis result for SHA-256 226294ee7ff74d4e…

MALICIOUS

PDF

47.3 KB Created: 2020-09-01 09:07:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 55bff66df7020dc21d31e368ef862288 SHA-1: 841ead40b92b1a38aeb28abeb75c7d7629e18c3d SHA-256: 226294ee7ff74d4e05450aea4fee03cc6f4281d3eee0a8cb97d400121b7fa746
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/wix?keyword=dim+vba+worksheet'. Additionally, it exhibits characteristics of a PDF SEO link farm, with numerous embedded links to external PDFs. The document body, though heavily obfuscated, contains references to these URLs, suggesting an attempt to drive traffic to malicious infrastructure.

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.ru/wix?keyword=dim+vba+worksheet
    • https://static.usrfiles.com/ugd/516793_1bd432032e684f43aadb97cdba39081f.pdf
    • https://static.usrfiles.com/ugd/b8c837_dc3a4bf614a94e6e851c34e062a6ec3f.pdf
    • https://static.usrfiles.com/ugd/b8c837_00d660db7dc74301b8966681077a6c88.pdf
    • https://static.usrfiles.com/ugd/ea78e0_2d06d960115e43aba467475275f8a7ee.pdf
    • https://static.usrfiles.com/ugd/c0fca2_1229cda0ae6746ad9383420f9c86d36a.pdf
    • https://static.usrfiles.com/ugd/a2c2bc_be8f8ad3aad54a9c984416fab4db7983.pdf
    • https://cdn.shopify.com/s/files/1/0438/3657/1805/files/33109565581.pdf
    • https://cdn.shopify.com/s/files/1/0431/7364/2406/files/rifts_books.pdf
    • https://cdn.shopify.com/s/files/1/0437/1539/5738/files/9394479720.pdf
    • https://cdn.shopify.com/s/files/1/0438/4981/0080/files/dubijajarosa.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_off00007cd4.bin
f679df3f48a6b62078cf78f9225f32b6deb9dea48edb830289bd3ea34a3b09ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7CD4 5248 bytes
font_01_sfnt_off00008e9b.bin
132c99d7bc5f68ba53e31a5174332f6677a331a6957105ac5e5f6c75c322c613		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8E9B 10116 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.