Malicious PDF — malware analysis report

Static analysis result for SHA-256 4bee126e750cee68…

MALICIOUS

PDF

40.1 KB Created: 2020-09-01 21:26:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 56aabe5fd8d892ea2c07f57d8d369d4a SHA-1: 24a7cd10a1fba2863408cb7f492369a4a99cc873 SHA-256: 4bee126e750cee68221d818acd0222e594b35ae424daec3861d21a66292ec258
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=baillie+gifford+uk+growth+fund+fact+sheet'. This URL is likely part of a phishing campaign, attempting to lure users into clicking the link by disguising it as a financial document. The document body also contains this URL and numerous other links to PDF files hosted on static.usrfiles.com, suggesting a link farm or content distribution network used to host lures.

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=baillie+gifford+uk+growth+fund+fact+sheet
    • https://static.usrfiles.com/ugd/7f929b_9b00f580866c451297f4926699e1ee84.pdf
    • https://static.usrfiles.com/ugd/b8c837_9b94b05d034940d8877c2d6facf28444.pdf
    • https://static.usrfiles.com/ugd/45fd81_5f9c86fc892f4975a67f9d5a1a07313c.pdf
    • https://static.usrfiles.com/ugd/dfb5f8_b025a1bb531b422bbeb44ba2a694c9ed.pdf
    • https://static.usrfiles.com/ugd/b8c837_3192a14a0fbe4f5593de9274581fa9d7.pdf
    • https://cdn.shopify.com/s/files/1/0434/1510/9794/files/nyc_sanitation_test.pdf
    • https://cdn.shopify.com/s/files/1/0431/0512/4516/files/lodafolibekawugoz.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/43127542751.pdf
    • https://cdn.shopify.com/s/files/1/0434/2307/2412/files/kemosu.pdf
    • https://cdn.shopify.com/s/files/1/0431/7049/6672/files/item_used_to_decorate_something_codycross_answers.pdf
    • https://static.usrfiles.com/ugd/1c8c6c_a1a1ba0623fb4e16a477f91e9b6030f8.pdf
    • https://static.usrfiles.com/ugd/dfb5f8_3a65256efd1a4369a64d0e5fb83fabf1.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_off00005d09.bin
7f362ae77e6fb9f4a865f9148a67ac0d5a25c91810fdf9a4e8e97c6d4e337ef9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D09 5488 bytes
font_01_sfnt_off00006fcb.bin
13c24b256d3747ca61130e96cf0541b58ba6daf6b427b884b3fb7ac165f00d4e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FCB 10644 bytes

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