Malicious PDF — malware analysis report

Static analysis result for SHA-256 aeaa291f39705f1e…

MALICIOUS

PDF

45.8 KB Created: 2020-08-29 23:46:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5312b534984bf7ec196b1615a096fcea SHA-1: cc95d7c91ddf5ded5a5430bc4033fb1591c6f450 SHA-256: aeaa291f39705f1e6c5e77eabdde6df6952b6a56b8836093af37a895888df90d
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, a technique often used for SEO spam or to redirect users to malicious sites. One of the primary links, 'https://ttraff.link/wix?keyword=eleven+by+tom+rogers', is flagged as a malicious redirector. The document body is heavily obfuscated and contains remnants of the link farm, suggesting a deliberate attempt to obscure 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.link/wix?keyword=eleven+by+tom+rogers
    • https://static.usrfiles.com/ugd/b8c837_58ab13cd913f46148ffee3d58e94a141.pdf
    • https://static.usrfiles.com/ugd/b8c837_85610b545a39410487a610b3e7dfc8c2.pdf
    • https://static.usrfiles.com/ugd/756799_cadbab6f335d4222b23137e7f1c90758.pdf
    • https://static.usrfiles.com/ugd/b8c837_8d9ffaeceb504c518a6638ab40a23277.pdf
    • https://static.usrfiles.com/ugd/b8c837_d63e9179ec9c4057915a8716084d9ae0.pdf
    • https://static.usrfiles.com/ugd/0cd3a8_bf2e02d460014c0cb00a74a450799a43.pdf
    • https://static.usrfiles.com/ugd/696b8a_9ea0c96c3a074d3d8eb5f316103b0570.pdf
    • https://static.usrfiles.com/ugd/b8c837_19cfcf61a7bc434abd947205c725d134.pdf
    • https://static.usrfiles.com/ugd/b8c837_1e8e8454c5ca4b17a035b86919f28ad0.pdf
    • https://static.usrfiles.com/ugd/bfbc46_7464759e3345486fa9642de6c19d1a26.pdf
    • https://static.usrfiles.com/ugd/e3ed1f_e77fb224d9f44a3d99388c029e675a80.pdf
    • https://static.usrfiles.com/ugd/b8c837_b8c4c6b8ac9e40a89c928cd2f02856af.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_off0000773d.bin
96ccf9a42a4119a65a68fe180ae640307e62185b47e13b31566d91361edd206f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x773D 5056 bytes
font_01_sfnt_off0000886a.bin
61bc84089a6f2b00c0d1897c1fcfdab8e13cb8190d4bd9fc06af857221330aa7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x886A 10120 bytes

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