Malicious PDF — malware analysis report

Static analysis result for SHA-256 321aec771e5a92f5…

MALICIOUS

PDF

55.8 KB Created: 2020-08-31 04:14:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3e6b3e3500b926e9e93c84c62144842b SHA-1: 06e9da915d282a56d823117907e03ebafd81035c SHA-256: 321aec771e5a92f5e7e744e571a7606f15fe1bc55d84136b8dd8d52f31302313
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/wix?keyword=virginia+5th+grade+science+sol+study'. This URL is likely used to direct users to a malicious site. The document body, though heavily obfuscated, contains the same URL, reinforcing its role in the attack. The PDF also exhibits characteristics of a link farm, suggesting a broader campaign to distribute malicious content.

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=virginia+5th+grade+science+sol+study
    • https://cdn.shopify.com/s/files/1/0435/9910/2115/files/28230083889.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/voxetevew.pdf
    • https://cdn.shopify.com/s/files/1/0427/8226/1415/files/complemento_predicativo_y_complement.pdf
    • https://static.usrfiles.com/ugd/451a43_fbd94b69f63c42b2b5df304e77a4cc9f.pdf
    • https://cdn.shopify.com/s/files/1/0439/8071/8238/files/91316656976.pdf
    • https://cdn.shopify.com/s/files/1/0432/4907/4336/files/jatedusefafalazanawazixuv.pdf
    • https://static.usrfiles.com/ugd/67e251_2c371152a93c4fd89b6f70c792ee43c0.pdf
    • https://static.usrfiles.com/ugd/b8c837_05541944863e4a8cb301cb6a7e10482f.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_off00009ba5.bin
7805353b0cd7ce280c672795a224c527d72e4f7d93f90fd62cf2dbc7f00b77c7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9BA5 5392 bytes
font_01_sfnt_off0000adf7.bin
b07927270b7968d13bb867c8dcf7b2c23fa778b271380e2ad76242934158aae9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xADF7 10796 bytes

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