Malicious PDF — malware analysis report

Static analysis result for SHA-256 de4d2e99ed9ae84b…

MALICIOUS

PDF

48.3 KB Created: 2020-08-31 08:31:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 75d6959668cc005ccb1ab34fc91602a6 SHA-1: 40b22431704de1de7a8f1fb77dbc2c283a586c88 SHA-256: de4d2e99ed9ae84b247e31f36d4b96117ded2c1aa283ed5027727cbc4816c2d1
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, masquerading as a link farm for the movie 'Black Panther'. One of these links, 'https://ttraff.ru/wix?keyword=download+black+panther+full+movie+in', is identified as a malicious redirector. The document body, though heavily obfuscated, contains references to this malicious URL and other benign-looking PDF links, suggesting a social engineering tactic to trick users into clicking the malicious redirector.

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=download+black+panther+full+movie+in
    • https://static.usrfiles.com/ugd/4d400c_7773e79549a843feaccd4a5e14907150.pdf
    • https://static.usrfiles.com/ugd/5ad03d_6b4c822744824f8f840b0719583c40f1.pdf
    • https://static.usrfiles.com/ugd/8e1900_2d63da8ad96e497dabc9053750746008.pdf
    • https://static.usrfiles.com/ugd/b8c837_aa221773c22547fdb89987f057ae7911.pdf
    • https://static.usrfiles.com/ugd/0fdb6d_d223096df22348beb2fc075c69977fd9.pdf
    • https://static.usrfiles.com/ugd/f55bec_c3c1f75247e4402391941791a386679e.pdf
    • https://static.usrfiles.com/ugd/b8c837_3e23a41186604fdda221f1467e8a191e.pdf
    • https://static.usrfiles.com/ugd/9d66c7_0d3caf507aab4c959c4f2fee565b929d.pdf
    • https://cdn.shopify.com/s/files/1/0429/8535/7463/files/13647168182.pdf
    • https://cdn.shopify.com/s/files/1/0436/2685/6601/files/calculus_and_analytic_geometry_by_thomas.pdf
    • https://static.usrfiles.com/ugd/b8c837_d698581ab6b34881bb95e69b237368cf.pdf
    • https://static.usrfiles.com/ugd/b8c837_02fcd7a8c76540ff8357d32089e30245.pdf
    • https://static.usrfiles.com/ugd/dd4472_0526e08797344c528d4bc6fb7cfa6277.pdf
    • https://static.usrfiles.com/ugd/b8c837_a6b1f197b51947cfb8d0d19ce9cda23c.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_off00007942.bin
2f71e63120e6acce088843d8520ec1f28739789448343b5b0e101734f374998e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7942 5572 bytes
font_01_sfnt_off00008c24.bin
8957a239e40658bb9e4fc8b78ad9235affeff4474bb80c96005b07137461679b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8C24 12464 bytes

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