Malicious PDF — malware analysis report

Static analysis result for SHA-256 222cb47a78006e55…

MALICIOUS

PDF

35.4 KB Created: 2020-08-31 06:32:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 862b6e737cf9964b057005eed1f46db7 SHA-1: 2de28cff8cb70f5a5d1209209577300a8e13fbe4 SHA-256: 222cb47a78006e55fe61c58a508eb51f2ef4015254eeb6f96707bcdf63bf74e9
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 'ttraff.com', which is used in conjunction with a link farm technique. The document body includes the malicious URL and a URL to a PDF hosted on 'static.usrfiles.com', suggesting a lure to download further content. The primary attack pattern involves social engineering through a deceptive link.

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/wix?keyword=paramore+riot+download+mega
    • https://static.usrfiles.com/ugd/b8c837_c1c9d490aab846f5b80f94d44adeccb7.pdf
    • https://static.usrfiles.com/ugd/ac72e0_201ab295ec704d00ba0cf8e206896a48.pdf
    • https://static.usrfiles.com/ugd/7f46b5_162a716fef8b4066b0cf7fe84b191ed7.pdf
    • https://static.usrfiles.com/ugd/cdb50c_7a93cea9fbf9476bbcf9024672fe6696.pdf
    • https://static.usrfiles.com/ugd/3eed2b_0c06384caca544e4bfbdfbc9e4b93637.pdf
    • https://static.usrfiles.com/ugd/565485_a300d9fb5ad44f19ab5d0860967babc0.pdf
    • https://static.usrfiles.com/ugd/5b9a87_2af7e04446014e7cbb200fee371f04c1.pdf
    • https://static.usrfiles.com/ugd/b8c837_adcf0e3d827b45dfb0d27593129c00a1.pdf
    • https://static.usrfiles.com/ugd/b8c837_2fa36e75b35d4f1fb67f07e467601316.pdf
    • https://static.usrfiles.com/ugd/b8c837_0211ac8a26b74ddd899207dd28056655.pdf
    • https://static.usrfiles.com/ugd/b8c837_2194ea78d2544d08ad7d57aa5fd3d928.pdf
    • https://static.usrfiles.com/ugd/b8c837_77b8a2a7b3814613a76843546b21bb3b.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_off00004cd2.bin
808dbb4669ead977c148e9b50dfa8283377cb5983fc9b07156958b589b358ae5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4CD2 5060 bytes
font_01_sfnt_off00005e00.bin
b57b84a21fba1011a08f94201b8d90e13ecf7e4ca79120b77bed419dc811c943		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E00 10416 bytes

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