Malicious PDF — malware analysis report

Static analysis result for SHA-256 2663e301c90d12c2…

MALICIOUS

PDF

34.1 KB Created: 2020-08-31 05:36:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: aa20ce47e39f88ce07dbba5db71a0a0c SHA-1: 002f66f8d348ec63e89fffeecc7b7b1fd5a1c727 SHA-256: 2663e301c90d12c26b996735f0ec8b854659ea5ebaa7b4a59cd119d0e9f3fcef
150 Risk Score

Malware Insights

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

The PDF contains a link disguised as a "free trial" for "Escape from Tarkov", which redirects to the malicious URL https://ttraff.cc/wix. This URL is flagged as a malicious redirector. The PDF also contains a large number of embedded links, many pointing to static.usrfiles.com, which is identified as a link farm. 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.cc/wix?keyword=escape+from+tarkov+free+trial
    • https://static.usrfiles.com/ugd/b8c837_9d97030adb904e1da4e1960c69db5cda.pdf
    • https://static.usrfiles.com/ugd/cc14e4_e1436bcd355b46bfac37372403d11e9a.pdf
    • https://static.usrfiles.com/ugd/b8c837_ccb8a125ba5a459f8f601b6bfbbbc0f4.pdf
    • https://static.usrfiles.com/ugd/b8c837_4eff25d7850a40f7b91869aedce118a8.pdf
    • https://static.usrfiles.com/ugd/a382ee_d8bc753aa19a4f12adb1ddaeb0fabca5.pdf
    • https://static.usrfiles.com/ugd/b8c837_432cfe9ff0eb48fca92d68034e3bf6a2.pdf
    • https://cdn.shopify.com/s/files/1/0430/6183/7981/files/35835377016.pdf
    • https://cdn.shopify.com/s/files/1/0462/6645/0074/files/73559295429.pdf
    • https://cdn.shopify.com/s/files/1/0433/9567/8357/files/nifafafin.pdf
    • https://static.usrfiles.com/ugd/aef5b7_265ae023fad14d629e086b5403a684f3.pdf
    • https://static.usrfiles.com/ugd/96bf9d_6f6261b6a2ec4bbebb98cece952d0a9d.pdf
    • https://static.usrfiles.com/ugd/b8c837_3c241bf2bd904e6089d9dccdb7324562.pdf
    • https://static.usrfiles.com/ugd/b8c837_1f3dcc434ccf4713bb7ef50dd056a26e.pdf
    • https://static.usrfiles.com/ugd/5360f8_869cfb7be74d4a46831bb5503e9090b4.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_off00004865.bin
4d3ef04e556393a8eb84b47bef4153c406990dd9de60da713f57ae40a1f8d29a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4865 5244 bytes
font_01_sfnt_off00005a2e.bin
4cea42f1a2f42c70ef0b44ab42930bd710d58aeda4cd0859e1b39bbb03f23902		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A2E 9948 bytes

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