Malicious PDF — malware analysis report

Static analysis result for SHA-256 30ba4f90f26d3010…

MALICIOUS

PDF

43.4 KB Created: 2020-08-22 08:27:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8c776b6bfbabd7c61975bc64a0ddd8d7 SHA-1: 19681da98864674714c6cc6dc2d47976aa84a5d1 SHA-256: 30ba4f90f26d301058bd5f56628ae741d354b9b39493692273a7c7781c8aeb3b
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it points to malicious infrastructure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=frisbee+rules+and+guidelines', which is likely intended to redirect the user to a malicious site. The PDF also exhibits characteristics of a link farm, with multiple embedded URLs, suggesting a broader campaign to drive traffic 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.ru/pify?keyword=frisbee+rules+and+guidelines
    • http://nibomu.epemalaysia.com/uploads/1/3/0/7/130740450/peganipupofese.pdf
    • https://cdn.shopify.com/s/files/1/0435/9087/7339/files/76822073900.pdf
    • https://cdn.shopify.com/s/files/1/0430/9506/4733/files/jixakaxeri.pdf
    • https://cdn.shopify.com/s/files/1/0431/0227/3697/files/30063697061.pdf
    • https://cdn.shopify.com/s/files/1/0433/3325/5323/files/temple_run_app_apk.pdf
    • https://cdn.shopify.com/s/files/1/0429/1241/5911/files/fair_housing_act_of_1988.pdf
    • https://cdn.shopify.com/s/files/1/0432/2207/3506/files/99625884100.pdf
    • https://cdn.shopify.com/s/files/1/0432/1925/5454/files/87773572862.pdf
    • https://cdn.shopify.com/s/files/1/0437/6693/9799/files/32130000540.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_off00006132.bin
533eda4dde268126b6bd86b92dca7640b52d7ecd98ed0a8c7dd4edf0fa3930e2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6132 4780 bytes
font_01_sfnt_off00007161.bin
741fe0b4df92a3ba185cff1c517a24b38544981e0ec1c5167ad1dc01840a0630		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7161 9820 bytes
font_02_sfnt_off0000930a.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x930A 4324 bytes

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