Malicious PDF — malware analysis report

Static analysis result for SHA-256 45e8ca5715be9140…

MALICIOUS

PDF

48.9 KB Created: 2020-08-31 02:22:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fe20405b406abf75f4ae9b53ab2cb580 SHA-1: 5c074d32192e2ca00ee7e5388708782ec5044720 SHA-256: 45e8ca5715be9140a4074c0dac0865ffc35314319ca79159c4a239b834ccedff
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/wix?keyword=manly+p+hall+lectures'. This indicates the document's primary purpose is to lure the user to a potentially harmful external site. The file also contains a large number of embedded links, characteristic of a link farm, further supporting the malicious intent.

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.cc/wix?keyword=manly+p+hall+lectures
    • https://static.usrfiles
    • https://static.usrfiles.com/ugd/ae059d_cd6726a201ee41258f7d0552d42797f7.pdf
    • https://static.usrfiles.com/ugd/ac51ce_24862bc31c8f47d5b99830f184491a60.pdf
    • https://static.usrfiles.com/ugd/b8c837_f160cccd797b40dc8753f7f406c2e438.pdf
    • https://static.usrfiles.com/ugd/3bcfef_97945d4fd6fe4d138e069f3993370cb2.pdf
    • https://static.usrfiles.com/ugd/67e251_a134a87bf13d4e7b9b65e9f038dbf839.pdf
    • https://static.usrfiles.com/ugd/b8c837_2fe25d6526324c378ceb3e72ea834f89.pdf
    • https://static.usrfiles.com/ugd/b8c837_725656b0a7a34cee9ba910416be135d2.pdf
    • https://cdn.shopify.com/s/files/1/0437/2188/3816/files/audient_zen.pdf
    • https://cdn.shopify.com/s/files/1/0430/0167/5939/files/sales_skills_and_techniques.pdf
    • https://static.usrfiles.com/ugd/73c254_47c0d891f6fc4f8a86b3ba4f58f5f7d4.pdf
    • https://static.usrfiles.com/ugd/b8c837_3660a2cb9bf04d14a9ef227cb72b6c90.pdf
    • https://static.usrfiles.com/ugd/83b1b3_6f1ee27274894010a8506dbac83902c1.pdf
    • https://static.usrfiles.com/ugd/b8c837_1f9965ebcbeb4e2eba89602cf458c84a.pdf
    • https://static.usrfiles.com/ugd/b8c837_010506e8282e497f8c70d9024c0094db.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_off00008211.bin
7768621c227cfaddefe019a9fbcb971944f7cc6eafed6a847405ddd50323cafb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8211 5128 bytes
font_01_sfnt_off0000937f.bin
48ae24026adf1c7e933106ef66aa920e0c20b7f1512de1f4fe3705e1f8996daa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x937F 10296 bytes

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