Malicious PDF — malware analysis report

Static analysis result for SHA-256 f36287ca3ffa59e1…

MALICIOUS

PDF

68.9 KB Created: 2020-08-28 10:45:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ff7306793e183bb861fffa2ce3afe11a SHA-1: 49f679f9fe8ac35472f0a312f062370bb45e2934 SHA-256: f36287ca3ffa59e1e433ae341d965fa072c28bd18d61862ffc48151d5a28a52e
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com', which is used in a lure related to 'Dragon age female dwarf'. This link is embedded within the document body, suggesting a social engineering attempt to trick the user into clicking it. The PDF also exhibits characteristics of a link farm, with numerous embedded links, many pointing to Shopify domains hosting other PDFs. The primary malicious IOC is the redirector URL.

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=dragon+age+female+dwarf
    • http://files.ursulinemetz.com/uploads/1/3/1/3/131383959/8331573.pdf
    • http://jikolira.jamelvandepas.com/uploads/1/3/0/7/130740257/63fa4eccd7f6a9.pdf
    • https://cdn.shopify.com/s/files/1/0432/9072/2454/files/18442284908.pdf
    • https://cdn.shopify.com/s/files/1/0429/3017/6159/files/98991742056.pdf
    • https://cdn.shopify.com/s/files/1/0428/8249/8716/files/vebobu.pdf
    • https://cdn.shopify.com/s/files/1/0435/5837/1496/files/xusogogifep.pdf
    • https://cdn.shopify.com/s/files/1/0436/2780/6883/files/extent_report_jar_for_selenium_webdriver.pdf
    • https://cdn.shopify.com/s/files/1/0464/6889/0782/files/57906818830.pdf
    • https://cdn.shopify.com/s/files/1/0431/1931/3062/files/critical_thinking_in_education.pdf
    • https://cdn.shopify.com/s/files/1/0432/8190/7870/files/ac_to_dc_power_supply_circuit.pdf
    • https://cdn.shopify.com/s/files/1/0463/1062/1341/files/barossa_council_annual_report.pdf
    • https://cdn.shopify.com/s/files/1/0446/0973/2771/files/physiology_of_lactation_in_humans.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/8402105605.pdf
    • https://cdn.shopify.com/s/files/1/0433/9823/4270/files/ferifubabuluviti.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_off0000c3bf.bin
f5fcfae4218d969f6cc7fc1e76c29a2f4cf400e3ebd7399fcd6d076f9c29ffed		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC3BF 5140 bytes
font_01_sfnt_off0000d537.bin
8a848c396e798348aba17acfe652e09beb1bca9fefe5d8258dff853d2de2a55a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD537 16028 bytes

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