Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0a66144d2076c4d…

MALICIOUS

PDF

42.9 KB Created: 2020-08-29 23:27:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a8ba7ae850a4e6b1423cf909ac4ecc16 SHA-1: 4a60ba5a749044ba4de2cbcebd671dd064db0a05 SHA-256: c0a66144d2076c4de8a55a1539cee5ba1977f64eda24ced1c9e537891bdd7d5a
150 Risk Score

Malware Insights

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

The PDF contains a link farm and a specific URL, 'https://ttraff.cc/wix?keyword=warframe+amp+build', which is flagged as a malicious redirector. The document body, though heavily obfuscated, contains this URL and references to 'Warframe amp build', suggesting a lure. The presence of numerous external PDF links further indicates a link farm strategy, likely to obscure the malicious destination. No scripts were extracted from this sample.

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=warframe+amp+build
    • https://static.usrfiles.com/ugd/b8c837_17210462a724451698488763164e7bf8.pdf
    • https://static.usrfiles.com/ugd/b8c837_20f2a63ed025432e8c3b46eb407c12ee.pdf
    • https://static.usrfiles.com/ugd/353d00_6337c3d0a5b34e2691b72ab954d26edc.pdf
    • https://static.usrfiles.com/ugd/b8c837_582e8594b21e426ab2e43ed936f35e88.pdf
    • https://static.usrfiles.com/ugd/b8c837_b8333e51fbd040d286aa09d763f6a548.pdf
    • https://cdn.shopify.com/s/files/1/0429/7339/7145/files/18360602010.pdf
    • https://cdn.shopify.com/s/files/1/0433/3443/4974/files/belesonogulin.pdf
    • https://cdn.shopify.com/s/files/1/0429/2254/1209/files/49478271366.pdf
    • https://cdn.shopify.com/s/files/1/0434/2664/4125/files/bajrangi_kannada_video_song.pdf
    • https://cdn.shopify.com/s/files/1/0437/3377/8597/files/55703936834.pdf
    • https://cdn.shopify.com/s/files/1/0432/4877/9426/files/modern_agriculture.pdf
    • https://static.usrfiles.com/ugd/26481d_d44e878b4ca749c6a6b1301f06ecb644.pdf
    • https://static.usrfiles.com/ugd/b8c837_e41261e3f39d47ac8a0695c7094588b7.pdf
    • https://static.usrfiles.com/ugd/df4650_21853d9571304677b1cd053325e66c2a.pdf
    • https://static.usrfiles.com/ugd/b8c837_4c3b8b89cff342aabce7eeee745cf9f7.pdf
    • https://static.usrfiles.com/ugd/b8c837_c1a25227efe24efa84f4228e272ced14.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_off00006a49.bin
e100661a77e2c0cc2c3f5a0fa3482d78cdcef030b58e813c97930165d0bd25d7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A49 5164 bytes
font_01_sfnt_off00007bbf.bin
fc006ada8410d373620f5bbb10be2eaa8256a203d451f54b05072a46aa33aed7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7BBF 10308 bytes

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