Malicious PDF — malware analysis report

Static analysis result for SHA-256 54c009c7ae9fd80a…

MALICIOUS

PDF

40.7 KB Created: 2020-08-31 21:57:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5ada130cbea3dc91cb48a7f5b34ba437 SHA-1: ca07744d922fdc91d391dee9abaec5baede46c71 SHA-256: 54c009c7ae9fd80af0a7580d30371dfd7a99c4d5afd32d0936c0d4b94bdbc864
120 Risk Score

Malware Insights

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

The PDF file contains a mass external link farm, with a primary link disguised as a software product specification document template. This link redirects to 'ttraff.cc', which is flagged as a malicious redirector. The document body, though heavily obfuscated, contains the same lure text and URLs, indicating a social engineering attempt to trick users into visiting malicious sites.

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/wix?keyword=software+product+specification+document+template
    • https://static.usrfiles.com/ugd/b6edda_eb3eea8f0d0f4095863ca514075fb813.pdf
    • https://static.usrfiles.com/ugd/b8c837_de1f308bf5e34aafbe3b8548f13ecdf3.pdf
    • https://static.usrfiles.com/ugd/0adedf_38ab51af22fc49b1975cd572cdd1fba3.pdf
    • https://static.usrfiles.com/ugd/b8c837_d712d579120a4546abade56a3f6e0394.pdf
    • https://static.usrfiles.com/ugd/74a852_adaace39c4ec467d8be6510cfc988b25.pdf
    • https://static.usrfiles.com/ugd/b8c837_9acd4a48cc8e4e84a570bd63d510f73d.pdf
    • https://static.usrfiles.com/ugd/b8c837_8132d3fdb9784b30994ab5ca9dbca23e.pdf
    • https://static.usrfiles.com/ugd/b8c837_9ce4937f68704b0c955ed332eef464c6.pdf
    • https://static.usrfiles.com/ugd/87a178_fe4fc79ccec2417f8d8677736f1e5b22.pdf
    • https://static.usrfiles.com/ugd/d99ef3_b707bf45feab4742b695d3486877dd59.pdf
    • https://static.usrfiles.com/ugd/3ab5ed_2c6a5620bef241529b0298c46d04ad79.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_off000060a6.bin
a2187629c5522e7bd82d0be7e5db960a5941fa27c0dda3d694ee694c45e705bb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60A6 5496 bytes
font_01_sfnt_off00007359.bin
ad7cfd7883ab14fc3ab70c1bec0a696e583733a5759c03453e40dc1f0539ee21		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7359 10156 bytes

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