Malicious PDF — malware analysis report

Static analysis result for SHA-256 39896036d51300a2…

MALICIOUS

PDF

46.9 KB Created: 2020-09-01 03:33:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a1e0ffe3b9b8fb74b4d2ca076067c309 SHA-1: 6eb464a4677d519e7497b246dcd9ce411df8d5cd SHA-256: 39896036d51300a2de2f977d24d367ca6fc231a853d60901641f81b7a3b10e7a
150 Risk Score

Malware Insights

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

The PDF contains a link that redirects to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains the same redirect URL. The PDF also contains a link farm, suggesting an attempt to manipulate search engine results or distribute malicious links broadly. The ML classifier strongly flagged this PDF as malicious.

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.link/wix?keyword=vijay+awards+2012+full+show
    • https://static.usrfiles.com/ugd/63d3ad_4af4f73e87644d73990d150fd91f7113.pdf
    • https://static.usrfiles.com/ugd/d2cc1f_d33fd974088b4b0fa6c01da5962c9f6b.pdf
    • https://static.usrfiles.com/ugd/81d6a4_f145ddfe639e4e69bb54d5fcf2a254be.pdf
    • https://static.usrfiles.com/ugd/b8c837_4f8db4302e5f4fa99060525ba0e440dd.pdf
    • https://static.usrfiles.com/ugd/4cf28d_15b37524e16e4d99b1f60ec578a08f2a.pdf
    • https://cdn.shopify.com/s/files/1/0428/0975/3767/files/lonadipu.pdf
    • https://cdn.shopify.com/s/files/1/0431/8212/9320/files/pijeju.pdf
    • https://cdn.shopify.com/s/files/1/0428/7974/6201/files/electronic_circuit_design_apps_for_android.pdf
    • https://cdn.shopify.com/s/files/1/0428/3501/7895/files/32101205689.pdf
    • https://static.usrfiles.com/ugd/99afdc_4c386c0b79ee45498c3bcf855071c5f9.pdf
    • https://static.usrfiles.com/ugd/b8c837_893b824729e540a7a7df4385467bf7b6.pdf
    • https://static.usrfiles.com/ugd/b8c837_070ce2bf6836403db4bed0a752beced0.pdf
    • https://static.usrfiles.com/ugd/07ef24_b2d245e34cdc45cda29c8859fc7a959b.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_off00006fdf.bin
b85be3c0829f53965d52816e5193750536b47e07ff846a0c8bf03668d733522f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FDF 5556 bytes
font_01_sfnt_off000082e3.bin
b50c77fe9b5905e58449523f68dd857781e7ea0f8aa923897bf4f5fbf034c4c9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x82E3 14168 bytes

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