Malicious PDF — malware analysis report

Static analysis result for SHA-256 23e0dfb49e597050…

MALICIOUS

PDF

41.3 KB Created: 2020-08-31 08:38:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9fdebcba84eaae8b6429d907079a00bb SHA-1: 8efa3614e8ab35fb5393c0d9292db0e531651e7a SHA-256: 23e0dfb49e597050d277f38b4b6b8fae38872f62201db8d782d591d2b0680e16
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

This PDF document contains a link to a known malicious redirector, ttraff.cc, which is likely intended to lead the user to a malicious site. The document body, though heavily obfuscated, also contains this URL, suggesting it's the primary lure. The presence of numerous other PDF links, while some are benign, indicates a potential link farm strategy to obscure the malicious destination. No scripts were extracted, and the PDF structure itself is the primary vector.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=gerd+diet+in+spanish
    • https://static.usrfiles.com/ugd/217d68_43f8058b4e874d3f93bdcf6a0072c46c.pdf
    • https://static.usrfiles.com/ugd/5b9365_c8af4a8dda354a9b88308a49afec016f.pdf
    • https://static.usrfiles.com/ugd/d01287_7c0c31942ba44d82ab2ddfe58e432aa4.pdf
    • https://static.usrfiles.com/ugd/61f964_7d2e895c39614908a2b3597413dbd60b.pdf
    • https://static.usrfiles.com/ugd/3d0627_d7465535beb14d2bb644aed4b9e62ab6.pdf
    • https://static.usrfiles.com/ugd/b8c837_397934fdb0bc4497ae15eef37ee9d19f.pdf
    • https://static.usrfiles.com/ugd/19ce5d_fd6c25fe44044662899b31fe9c075370.pdf
    • https://cdn.shopify.com/s/files/1/0434/7287/9782/files/gorudupet.pdf
    • https://cdn.shopify.com/s/files/1/0434/7812/2649/files/gatejidaterusimimoxawe.pdf
    • https://cdn.shopify.com/s/files/1/0435/3651/5221/files/free_ford_explorer_repair_manual.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_off0000640e.bin
7fd6b7bddb6317c81c42b5ffd1cde56659509b44ae18962c3449e4c16b468261		 pdf-font-stream PDF embedded font (sfnt) at offset 0x640E 5048 bytes
font_01_sfnt_off00007536.bin
7d7b91c6dac4a04a89a2be492e4375b07e48147b1c6c12dad67f97516e9d3723		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7536 10504 bytes

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