Malicious PDF — malware analysis report

Static analysis result for SHA-256 8adfebdbc46df7da…

MALICIOUS

PDF

65.9 KB Created: 2020-08-31 06:24:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c47c83531e37359a799fe6eef7ca9d3d SHA-1: dcb7b3f116bb668ac4d288a370aa7dc7cf64a975 SHA-256: 8adfebdbc46df7da549c4fe3e417a1a7846248d036b089299b347d8641af578c
150 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, disguised as a game map download. This heuristic, combined with the ML classifier flagging the PDF as malicious, strongly suggests a phishing or malware delivery attempt. The PDF itself is likely a lure to entice clicks on the malicious link.

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=zelda+botw+shrine+map+pdf
    • https://static.usrfiles.com/ugd/b8c837_4bd0e40eb6e04721a88f651f4d4435b1.pdf
    • https://static.usrfiles.com/ugd/7c3584_28b5d56493714395901bda4fca70e4f4.pdf
    • https://static.usrfiles.com/ugd/23e9be_f214ee4c6c264b96b81c9cb2d91d03f5.pdf
    • https://static.usrfiles.com/ugd/0d9a50_c7d45ea0c7794d9a81972269ba9a3df5.pdf
    • https://static.usrfiles.com/ugd/98e298_3694a4fd190a49e38ff29bbfbcb66a98.pdf
    • https://static.usrfiles.com/ugd/b8c837_2cce5fc364844c828ead48127fa3a40c.pdf
    • https://static.usrfiles.com/ugd/b8c837_f41429a1127d412aaa97870cbc82fe1f.pdf
    • https://static.usrfiles.com/ugd/eb5a6a_f3e8d30b575644fe81732a80aff1f3c3.pdf
    • https://static.usrfiles.com/ugd/e3325f_e9f44bb1b08c48f089c47703725217e2.pdf
    • https://static.usrfiles.com/ugd/e5a943_955c9272373c49f8925b81156051235a.pdf
    • https://cdn.shopify.com/s/files/1/0429/9613/8137/files/dukepozopenusomoluro.pdf
    • https://cdn.shopify.com/s/files/1/0439/2602/8456/files/64221756136.pdf
    • https://cdn.shopify.com/s/files/1/0427/4959/1718/files/golagetenifimire.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_off0000c60c.bin
4ee1e06c476ae1e03585e622fdd3b2b66a22ef204ed1164b8c1717ab9d72cb0f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC60C 5468 bytes
font_01_sfnt_off0000d885.bin
c5c63f12c6639bd5a3194e0eae914677a297a790a24cea34f29b973bc62069df		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD885 10092 bytes

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