Malicious PDF — malware analysis report

Static analysis result for SHA-256 d250e995c30b3818…

MALICIOUS

PDF

40.2 KB Created: 2020-08-30 10:42:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3e552c58aefaff948c979242929065c1 SHA-1: 2eafc62e9d8e9185bd9dd7c2b3bbbf9f6244d5ab SHA-256: d250e995c30b3818a24d7d5fb6b336c89e943b0de17051fd6f8eb5fe233ee08b
120 Risk Score

Malware Insights

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

The PDF contains a link farm designed to redirect users to malicious infrastructure, specifically identified by the critical heuristic PDF_MALICIOUS_REDIRECTOR_LINK. The primary malicious URL is https://ttraff.com/wix?keyword=pokemon+mega+flora+sky+guide. The document body, though heavily obfuscated, contains this URL and other links, suggesting a social engineering lure to drive traffic to the redirector. No scripts were extracted, limiting the analysis of further payload delivery.

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/wix?keyword=pokemon+mega+flora+sky+guide
    • https://cdn.shopify.com/s/files/1/0429/2745/6419/files/75318610740.pdf
    • https://cdn.shopify.com/s/files/1/0432/4029/2520/files/common_vietnamese_phrases.pdf
    • https://cdn.shopify.com/s/files/1/0438/5298/8566/files/critical_thinking_download.pdf
    • https://cdn.shopify.com/s/files/1/0428/5064/8223/files/xibetogeb.pdf
    • https://cdn.shopify.com/s/files/1/0428/2220/5607/files/91315132474.pdf
    • https://static.usrfiles.com/ugd/b8c837_c074f97ce5614b67994cb249c05d89f5.pdf
    • https://static.usrfiles.com/ugd/b8c837_d05ce806e25141aa92bb4a89de07d8ea.pdf
    • https://static.usrfiles.com/ugd/b3bc21_4a776438a0b145ecb6c93adb20a1391a.pdf
    • https://static.usrfiles.com/ugd/b8c837_7f9a4365e1224fc896f2ac8074c61f03.pdf
    • https://static.usrfiles.com/ugd/b8c837_d4331bf6850348ae97cdea7eee0664fe.pdf
    • https://static.usrfiles.com/ugd/b8c837_e886dd03e2974bdaad1bd37244012fe7.pdf
    • https://static.usrfiles.com/ugd/599f1c_8b109679a70a4ed0b6cf302c7e50bb6d.pdf
    • https://static.usrfiles.com/ugd/7ff653_0956beb47026492fb64f2a7fd193b120.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_off00005dfc.bin
4677239a95080e02821597838a0596fd763a67b5d5f582ac435d1c6126904e2f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DFC 5396 bytes
font_01_sfnt_off00007046.bin
ceaa2437dd5ff0b8cfe51168e702481ad8b7fdc1f3c6a33fb68c4effc5ecdac7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7046 10412 bytes

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