Malicious PDF — malware analysis report

Static analysis result for SHA-256 5395ad7001ad47d0…

MALICIOUS

PDF

39.0 KB Created: 2020-08-31 23:25:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4cebe10329a181aa5f8094ffc2c67be2 SHA-1: 72689cb7f653e4ca48255c6da079cd993bd022d5 SHA-256: 5395ad7001ad47d00f05d294dc7df1cb49d89dbfb64509e70b020593f058d49f
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 links, many of which point to a link farm hosted on static.usrfiles.com. One of these links, https://ttraff.com/pify?keyword=jsw+sheet+colours, is identified as a malicious redirector. This suggests the document is designed to lead users to malicious content through a series of redirects.

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/pify?keyword=jsw+sheet+colours
    • https://static.usrfiles.com/ugd/b8c837_49aec9fce2f141f186f63bb2d1b46d0f.pdf
    • https://static.usrfiles.com/ugd/efb3f0_d36ec7fcf7ea4cacaa004914a2d727d0.pdf
    • https://static.usrfiles.com/ugd/83f04e_f93588e5486646058f9e7a0164c4c781.pdf
    • https://cdn.shopify.com/s/files/1/0431/7023/4524/files/vagabolovadakilin.pdf
    • https://cdn.shopify.com/s/files/1/0435/2488/2583/files/blaise_cendrars_el_oro.pdf
    • https://cdn.shopify.com/s/files/1/0433/8801/0659/files/12909046168.pdf
    • https://static.usrfiles.com/ugd/cfa91a_1de9cb08131643c6bbbcf4d7519577b3.pdf
    • https://static.usrfiles.com/ugd/daca0d_d186d68b83a944c38ad69ed64713134f.pdf
    • https://static.usrfiles.com/ugd/5360f8_93eaa5b3dcf84fc7b2157f7e7bd237c7.pdf
    • https://static.usrfiles.com/ugd/ea78e0_8700a27bd1794e04a8c20281259c169f.pdf
    • https://static.usrfiles.com/ugd/b8c837_0e2a18021ca2478e90e3c76a36a9604d.pdf
    • https://static.usrfiles.com/ugd/87d215_d66522ae9e6d4064b6ae6f07b80f37ed.pdf
    • https://static.usrfiles.com/ugd/89363e_4e8e794bf95d4f159f9a5c0a863962d5.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_off00005d33.bin
a817448a9296c215eca8a87f619c97424197c9f9437cfa222cbf24cef2decd3c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D33 4760 bytes
font_01_sfnt_off00006d6c.bin
d9906959d2ef83fcb74c486ddfb39785f46c54310812a7ed74779bcf913023d7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D6C 10028 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.