Malicious PDF — malware analysis report

Static analysis result for SHA-256 50e69d207c36ebb8…

MALICIOUS

PDF

45.0 KB Created: 2020-09-11 02:59:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 69be56f5bed89422a6af8889d17d24c0 SHA-1: 74898e909a383add8e229894eaa005fc50a2f356 SHA-256: 50e69d207c36ebb8ec374abf4d8451076e89e2f3a357e8e4f6b01f6ab931ecc5
120 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with one critical heuristic firing indicating a link to known malicious redirector infrastructure. The embedded URL, 'https://ttraff.link/wix?keyword=calendar+template+ppt+2019', is likely intended to deceive the user into downloading a malicious payload. No scripts were extracted from this sample.

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=calendar+template+ppt+2019
    • https://static.usrfiles.com/ugd/4a6c57_0f57600be649463ea5d2da946652b05d.pdf
    • https://static.usrfiles.com/ugd/f3cb45_93b441214cee4cab9cc6dd9377b2a709.pdf
    • https://static.usrfiles.com/ugd/ee4d88_0478d8a006fa4cf9a7a4775072edef51.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/25668779603.pdf
    • https://static.usrfiles.com/ugd/bb13a2_221d9b4e16da4bf9a9fc80e233263a34.pdf
    • https://static.usrfiles.com/ugd/d01287_ccd74b4c2842425d91f77be9d64940e7.pdf
    • https://static.usrfiles.com/ugd/286fb8_ef047527b8cc42cb8c7dc2d0971494e3.pdf
    • https://static.usrfiles.com/ugd/bfbc46_ddc00f3089a44cd8b6327f737f4c4fc8.pdf
    • https://static.usrfiles.com/ugd/b8c837_96910b9da0d24990981a7eab6877b607.pdf
    • https://static.usrfiles.com/ugd/136d3d_b5eba979f8bf4ee9b9d0b7a9be67c3d2.pdf
    • https://static.usrfiles.com/ugd/b8c837_eeb7b8ec05764115b8b8a780d8230f3b.pdf
    • https://static.usrfiles.com/ugd/b27199_2fb9f3c46c314899933c0198573b4807.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_off0000711b.bin
5a0f24b0d6d147b747a1fe2f05a82782631ef8bc910e9c2d9da34380d110420a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x711B 5312 bytes
font_01_sfnt_off00008311.bin
a27e55242ad4001b336d582403e1dc1906176148d07b4d8dfe591e8f9d118e80		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8311 10700 bytes

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