Malicious PDF — malware analysis report

Static analysis result for SHA-256 3954712b8fae9f85…

MALICIOUS

PDF

60.0 KB Created: 2020-08-23 01:04:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7c32388632c7700a1c93cffe7de8a0f5 SHA-1: 814414a3de64f1a7123a7d6829bbab69014d92df SHA-256: 3954712b8fae9f859a9c7166b76dd4fd67b8849d1a1c1c493a70a517c8e14782
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF contains embedded links that are designed to redirect users to malicious sites. One such link, 'https://ttraff.com/pify?keyword=software+license+agreement+template+pdf', is identified as a malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting a lure to trick users into clicking it. The presence of numerous other PDF links, many pointing to Shopify, indicates a link farm strategy to potentially improve search engine visibility for malicious 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.com/pify?keyword=software+license+agreement+template+pdf
    • http://files.thesilkfamilyproject.com/uploads/1/3/1/4/131437740/livig.pdf
    • http://files.bransonacademy.net/uploads/1/3/2/6/132681207/nudewajajare-gunaxax.pdf
    • http://files.eigenman.com/uploads/1/3/1/3/131398281/modut.pdf
    • http://kupugimo.davidcainrscp.com/uploads/1/3/2/6/132683169/6ebc985ac9b6f.pdf
    • https://cdn.shopify.com/s/files/1/0435/2724/1879/files/recette_de_cuisine_algrienne_samira.pdf
    • https://cdn.shopify.com/s/files/1/0429/6183/0037/files/43557466471.pdf
    • https://cdn.shopify.com/s/files/1/0449/7866/7688/files/duketuxisinisunepovo.pdf
    • https://cdn.shopify.com/s/files/1/0428/0070/9791/files/vexeferizurewu.pdf
    • https://cdn.shopify.com/s/files/1/0433/9843/0876/files/accelerometer_calibration.pdf
    • https://cdn.shopify.com/s/files/1/0437/8034/1917/files/42773448545.pdf
    • https://cdn.shopify.com/s/files/1/0432/7315/8806/files/rizodutewetufex.pdf
    • https://cdn.shopify.com/s/files/1/0429/8237/5577/files/72211871253.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a37f.bin
a17885b4fd577e0298a64705d5055d2ac7c2363fd7008e9cf236b3df412a17d8		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA37F 2828 bytes
font_01_sfnt_off0000ad79.bin
6b66df4cd84ed47107d8a4ca5514a0926fa94071d35c88b8b7fd61b7080f127c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAD79 5668 bytes
font_02_sfnt_off0000c0b7.bin
97f9be0306c13add93c0a55a45d61b5b61c4a54f08496420d15793a9eee5d844		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC0B7 9932 bytes

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