Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b5e08de54de1109…

MALICIOUS

PDF

32.9 KB Created: 2020-08-07 01:16:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9c1124004ec10facf11f655b30a16351 SHA-1: 2ac360f9cbe837dc0f737409503d3487f95a3202 SHA-256: 3b5e08de54de1109a01bf7aaf7bc1164c97affeb7ee0e58784457054ebc244df
150 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 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many of which point to Shopify domains hosting PDF files. The document body, though heavily obfuscated, contains the same malicious URL. The primary attack pattern involves redirecting the user to a potentially harmful site.

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.com/pify?keyword=algebra+and+trigonometry+structure+and+method+book+2+pdf
    • http://files.coloradoriverscape.org/uploads/1/3/1/6/131636807/dd3d2846.pdf
    • http://files.danielphotographyltd.com/uploads/1/3/1/6/131607232/1a6eb9.pdf
    • http://files.earacecilia.net/uploads/1/3/1/4/131410662/1ad852.pdf
    • https://cdn.shopify.com/s/files/1/0432/1430/7496/files/75596714460.pdf
    • https://cdn.shopify.com/s/files/1/0433/9567/8357/files/89088368550.pdf
    • https://cdn.shopify.com/s/files/1/0434/5564/3813/files/gigovefominavawivosaluw.pdf
    • https://cdn.shopify.com/s/files/1/0433/6713/7438/files/39946463334.pdf
    • https://cdn.shopify.com/s/files/1/0438/9814/2875/files/marathi_barakhadi_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/6926/7354/files/52464811439.pdf
    • https://cdn.shopify.com/s/files/1/0433/3967/7861/files/vikinugabe.pdf
    • https://cdn.shopify.com/s/files/1/0433/6369/6799/files/overwatch_command_line_arguments.pdf
    • https://cdn.shopify.com/s/files/1/0433/8404/5719/files/lego_bionicle_instructions.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_off0000422d.bin
2b38a5db5fb1f48341082ee8c417aee1bf61cd15f6e9a3d337a849a984d57351		 pdf-font-stream PDF embedded font (sfnt) at offset 0x422D 5996 bytes
font_01_sfnt_off00005676.bin
94f3daaee3ed51069a64a76e772560ecb5316e11fe437c1fc02d7e4618b6752b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5676 9500 bytes

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