Malicious PDF — malware analysis report

Static analysis result for SHA-256 f68e1d2705ffda62…

MALICIOUS

PDF

66.4 KB Created: 2020-08-31 03:44:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 66b2a04db90afdc78208220d7aee0e8b SHA-1: e4edc28d6b3bae691da5d767d7052a01518a27db SHA-256: f68e1d2705ffda624d89bb54a963e69c71cc49a8bc6de468aa90e984cdf29bc9
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/wix?keyword=enchantments+cost+less'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, with 'https://static.usrfiles.com/ugd/1be480_51a6491715ca4bcdb59fcaa52f5a6eab.pdf' being one of the first identified. The document body, though heavily obfuscated, contains references to these URLs, suggesting a social engineering attempt to direct users 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.com/wix?keyword=enchantments+cost+less
    • https://static.usrfiles.com/ugd/1be480_51a6491715ca4bcdb59fcaa52f5a6eab.pdf
    • https://static.usrfiles.com/ugd/49be48_9f0151958923426a93782198831ea137.pdf
    • https://static.usrfiles.com/ugd/b8c837_2fe25d6526324c378ceb3e72ea834f89.pdf
    • https://static.usrfiles.com/ugd/49be48_0f851d7b05e04ffba9ed3cbc321b1076.pdf
    • https://static.usrfiles.com/ugd/b8c837_59e7076e87374505bc6151c15849b6e4.pdf
    • https://static.usrfiles.com/ugd/bdeb4c_e01c40a25a3a415ca0e274355f1821fe.pdf
    • https://static.usrfiles.com/ugd/a6e5e9_b0bd647ba487473bb173b48b03e3f00e.pdf
    • https://static.usrfiles.com/ugd/409ca8_a87a5134b9f747ef984692a637116abf.pdf
    • https://static.usrfiles.com/ugd/23b571_073fbaeb860e494da7a5f1af6ee264e8.pdf
    • https://static.usrfiles.com/ugd/9b5f63_fa0c1a2feeb44d4da3976237b40f6b41.pdf
    • https://static.usrfiles.com/ugd/b8c837_c59f6c0eb37742cda4586de8e5ae4a8a.pdf
    • https://static.usrfiles.com/ugd/3826db_2c180c860c6e451a8d0469bd9b47b1c3.pdf
    • https://static.usrfiles.com/ugd/b8c837_99708c189bd14f61846832929278c864.pdf
    • https://static.usrfiles.com/ugd/b8c837_88832ff918c442568b08c5cada25cd28.pdf
    • https://static.usrfiles.com/ugd/d1d005_3d47e513a16e4cfcac36c9400bd11f1d.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_off0000c202.bin
d3fde8e08437d9ecfa49a43d038a8f076cfb19e56bc25ca539e1a5adba9511e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC202 4900 bytes
font_01_sfnt_off0000d27f.bin
b36148c3a3586f2f7903ad38753ebf2a5f832c799c772e2fc444836063fc618d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD27F 13156 bytes

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