Malicious PDF — malware analysis report

Static analysis result for SHA-256 4565cd5b3da3ffca…

MALICIOUS

PDF

34.9 KB Created: 2020-08-30 03:27:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5db037902e505003688fd86b6ff33c57 SHA-1: f20eb397e0536301d7fc6863b00e5d8fb1be5308 SHA-256: 4565cd5b3da3ffca6774fad628e5da13198c08f491cf187937b386c4875b0429
120 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.cc, disguised as an investment opportunity. The document body, though heavily obfuscated, contains the same URL and references 'safe haven: investing for financial storms', reinforcing the lure. The presence of a PDF link farm heuristic further indicates malicious intent to drive traffic to external sites.

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=safe+haven%253A+investing+for+financial+storms
    • https://static.usrfiles.com/ugd/b8c837_019a09f021114217a5f58feee6ad44b6.pdf
    • https://static.usrfiles.com/ugd/a44510_8ec023b191404144bb8dec002afcbbff.pdf
    • https://static.usrfiles.com/ugd/dc8a8e_5b07441d96e5486780758d09456f98bc.pdf
    • https://static.usrfiles.com/ugd/b8c837_21cc0cae5a5d426ca3d9d6962460034b.pdf
    • https://static.usrfiles.com/ugd/74a852_3113877e65724439a72135b2c5db9760.pdf
    • https://static.usrfiles.com/ugd/8de238_dc037b4f94304ff787a0c4123d07c3c1.pdf
    • https://static.usrfiles.com/ugd/9dda13_7320e427e0c94ec69e7d6d85277c9767.pdf
    • https://static.usrfiles.com/ugd/73cb9e_b8d998976a1742e699ff7ca4c8966ff4.pdf
    • https://static.usrfiles.com/ugd/36f25b_9a05fdc5e25f4a24b6553b63aae7f347.pdf
    • https://static.usrfiles.com/ugd/69b86f_414c55377bc74499911e48b8a52323c6.pdf
    • https://static.usrfiles.com/ugd/15cd4d_556e50b6f2a3417ab16c8a60f421945b.pdf
    • https://static.usrfiles.com/ugd/b8c837_b20c93d4ea154df0a77c5ec43467059e.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_off00004a82.bin
2d1640686bbd429918fd1a4bc2edbb7eea46f4250ea20eb3c364af87ddd9868d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4A82 5508 bytes
font_01_sfnt_off00005d13.bin
5dd1c34c4ae8aa855d6a98c5313df63218433ecbe65fb186635dce754a4ba172		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D13 9844 bytes

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