Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba614e70cfd4856c…

MALICIOUS

PDF

64.8 KB Created: 2020-07-30 21:28:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8df208314656f2c83d3b6efb751f5a91 SHA-1: 34c6ecea5038cb53df1ba2a7873e59b7ec724f4d SHA-256: ba614e70cfd4856c3a9f6aba79606aeab4035501ad89f1f7aa8b424c1ac459a9
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'ttraff.ru'. It also exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify. The document body, though heavily obfuscated, contains text related to 'Livro sobre matriz swot pdf', suggesting a lure. The primary malicious IOC is the redirector URL, which is likely used to funnel victims to a phishing site or malware download.

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.ru/pify?keyword=livro+sobre+matriz+swot+pdf
    • http://files.captainshreveladygatorsoccer.com/uploads/1/3/1/3/131383954/bikurizejobojevo.pdf
    • http://files.alexjtaylor.com/uploads/1/3/1/8/131871618/1d922d79d92bf27.pdf
    • http://files.jadsys.com/uploads/1/3/1/0/131070651/lubuzo.pdf
    • http://files.pnanorthhouston.org/uploads/1/3/2/8/132814427/funuta.pdf
    • https://cdn.shopify.com/s/files/1/0428/0070/9791/files/nugulugufef.pdf
    • https://cdn.shopify.com/s/files/1/0428/6650/7943/files/63655897639.pdf
    • https://cdn.shopify.com/s/files/1/0430/0449/3987/files/murivupalulijazolexul.pdf
    • https://cdn.shopify.com/s/files/1/0431/8678/2369/files/govedumi.pdf
    • https://cdn.shopify.com/s/files/1/0429/2254/1209/files/85633979748.pdf
    • https://cdn.shopify.com/s/files/1/0430/4686/3005/files/74449819769.pdf
    • https://cdn.shopify.com/s/files/1/0429/5720/9753/files/rodemezonilonabir.pdf
    • https://cdn.shopify.com/s/files/1/0429/1212/0998/files/lakifuwijewewajifa.pdf
    • https://cdn.shopify.com/s/files/1/0439/5764/9566/files/94723172894.pdf
    • https://cdn.shopify.com/s/files/1/0428/4032/6300/files/74332325555.pdf
    • https://cdn.shopify.com/s/files/1/0440/7338/6136/files/77380588067.pdf
    • https://cdn.shopify.com/s/files/1/0430/8631/5682/files/25047181211.pdf
    • https://cdn.shopify.com/s/files/1/0431/0558/3266/files/64315837720.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_off0000c1d0.bin
5ab732d7937d00a80549ce33329845aaac124b2a03e14e7bf343f56cec804ac0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC1D0 5120 bytes
font_01_sfnt_off0000d359.bin
f0b56cc129e83a7e73718bc064bccabb79c4b6156008a535154fad6a0e2bcc6e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD359 9976 bytes

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