Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ce4c22619c48ec1…

MALICIOUS

PDF

45.5 KB Created: 2020-09-02 16:14:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4c473c89b41485c16b71d7db5d077098 SHA-1: 40b463b6f7a19785025c9062ff5f3a9de5fee79b SHA-256: 8ce4c22619c48ec1279a42a39dfd5e1f57f4a5ab886887a1e15ba7b81b86f2be
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to a known malicious redirector. Additionally, PDF_SEO_LINK_FARM indicates the document is part of a link farm, likely to obscure malicious intent. The embedded URL 'https://ttraff.club/pify?keyword=stock+market+indicators+technical+analysis+pdf' is the primary indicator of malicious redirection, disguised as a stock market analysis PDF.

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.club/pify?keyword=stock+market+indicators+technical+analysis+pdf
    • https://static.usrfiles.com/ugd/3615fb_bdbe0a9fd8ff40fd9cabccd2c9e79bb2.pdf
    • https://static.usrfiles.com/ugd/5360f8_c84f053d9dda4cc98a3e68799841db6e.pdf
    • https://static.usrfiles.com/ugd/b8c837_5f9c85f70c984a9ea71bcdac4e2a5f33.pdf
    • https://static.usrfiles.com/ugd/b910ae_e336f58c491843a2883344d5a001765f.pdf
    • https://static.usrfiles.com/ugd/74c34a_8d8b67bde0544ad9a7e0c43762f602b6.pdf
    • https://static.usrfiles.com/ugd/57c819_8e4741a4170e4cd4969aeaf344678c3e.pdf
    • https://cdn.shopify.com/s/files/1/0439/4971/9720/files/.pdf
    • https://cdn.shopify.com/s/files/1/0461/3328/0921/files/visto_bueno_de_seguridad_y_operacin.pdf
    • https://cdn.shopify.com/s/files/1/0431/2432/6564/files/aloha_pos_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/0084/7781/files/degitifojilaramel.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_off00006ee6.bin
55c2e4f9b7b612333f5553b7163f22682fab51d3714ad7279029eb8d282824d2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6EE6 5664 bytes
font_01_sfnt_off0000820f.bin
b43473af560bb7ca9aff1ef96b60f01bee190b4df53393a22db67d98df56303b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x820F 11748 bytes

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