Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1418f84c8dac6cc…

MALICIOUS

PDF

44.6 KB Created: 2020-09-04 06:43:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9173d7f786ed0bec33a6ea02a3ff4f14 SHA-1: 288ad4c281f5032a43d8868315c34c88e26b9b26 SHA-256: e1418f84c8dac6cc4ffc2ef3da17b355345a744d5039326ccad27b3033e090a2
120 Risk Score

Malware Insights

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

The PDF file contains a mass of external links, many of which point to a redirector service. The document body text, though partially corrupted, includes the phrase 'Stay safe online information' and the malicious URL 'https://ttraff.me/pify?keyword=stay+safe+online+information'. This suggests a social engineering attack aiming to redirect users to potentially harmful content.

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.me/pify?keyword=stay+safe+online+information
    • https://static.usrfiles.com/ugd/1fbf8b_92efad71c68a4dfeb1ae7a8477dae03d.pdf
    • https://static.usrfiles.com/ugd/e2c250_2eba6afbb2a449cd8e62aba3c3445f20.pdf
    • https://static.usrfiles.com/ugd/8b97dd_b8687b8e72aa46d699de6c0476166011.pdf
    • https://static.usrfiles.com/ugd/b8c837_97b76e1d1499429887e9f71ee4ea7e7e.pdf
    • https://static.usrfiles.com/ugd/921909_4cec9f2e3a604489bbcafe4aab00f036.pdf
    • https://cdn.shopify.com/s/files/1/0432/5621/7750/files/ketofejobug.pdf
    • https://static.usrfiles.com/ugd/dad7b5_11f7266c3f6f4c36b0a9a85010fd2faa.pdf
    • https://static.usrfiles.com/ugd/b0c717_17ab080f36824e5eb045b70f3dfcb0d2.pdf
    • https://static.usrfiles.com/ugd/b8c837_40bb6adbf82f4659841a2045b6815132.pdf
    • https://static.usrfiles.com/ugd/b8c837_d6be4d119454488385e544be8e0be150.pdf
    • https://static.usrfiles.com/ugd/a771bd_003d58e9504c4ba18a0998a01598e6a0.pdf
    • https://static.usrfiles.com/ugd/277b62_4344dca12ccc4576b1aa4b220e0d13cc.pdf
    • https://static.usrfiles.com/ugd/decf6f_b2a5816610804eac85004dc4acad5810.pdf
    • https://static.usrfiles.com/ugd/9c0842_72b2870c13954a1e892108963bbf3a20.pdf
    • https://static.usrfiles.com/ugd/dc6899_8bb3e593825b49bebca4c2291218e1b8.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_off00006f4d.bin
834586a4691f3137ddfdb841aa03d35165b44ad529d9b309ca98309c7fe3f4fa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F4D 5116 bytes
font_01_sfnt_off000080a5.bin
1b635e145bc77d7eca6ea560e7dc4ff430070a7ed7c07457447393e1577d7610		 pdf-font-stream PDF embedded font (sfnt) at offset 0x80A5 10712 bytes

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