Malicious PDF — malware analysis report

Static analysis result for SHA-256 30af60b8db3244ba…

MALICIOUS

PDF

49.9 KB Created: 2020-08-30 23:43:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 40300445ffb6f7b662b75e1120d42ba7 SHA-1: ccc52d1af4f9a0f81185d4eeaa012284c532e73f SHA-256: 30af60b8db3244badef9b9916041ac912df4c56f0040d6a1ffd3617899c193a6
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/wix?keyword=alagu+kutty+chellam+mp3+song'. The document body, though heavily obfuscated, also contains this URL and a large number of other URLs, many hosted on Shopify and static.usrfiles.com, suggesting a link farm or SEO poisoning attempt. The primary malicious URL is likely intended to redirect the user to a malicious site.

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/wix?keyword=alagu+kutty+chellam+mp3+song
    • https://cdn.shopify.com/s/files/1/0431/7803/3303/files/gebadaliganibano.pdf
    • https://cdn.shopify.com/s/files/1/0430/0334/7097/files/demeramu.pdf
    • https://cdn.shopify.com/s/files/1/0437/4262/5953/files/case_in_point_vk.pdf
    • https://cdn.shopify.com/s/files/1/0431/3228/9175/files/mandom_indonesia_tbk_annual_report.pdf
    • https://static.usrfiles.com/ugd/2e4eb4_66e32eba73b9497daa3db3b87b9c7173.pdf
    • https://static.usrfiles.com/ugd/cc03df_c9002ac9fd98407f8209fc2331814844.pdf
    • https://static.usrfiles.com/ugd/4bb894_67850e5aa2764d31ad6809a66a6ffbd0.pdf
    • https://static.usrfiles.com/ugd/6f53d7_3691bfbf8211485bb0fda5e83aa20d3f.pdf
    • https://static.usrfiles.com/ugd/e6092c_c0914a05fb5f4c188c4105e16cc8f131.pdf
    • https://static.usrfiles.com/ugd/b8c837_50fb5fd106654119a8fcc2913c9d35d5.pdf
    • https://static.usrfiles.com/ugd/b65acf_89470952a4b642c5ae0bc6c351ecac23.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005fb7.bin
4236ddd4fbaf845944e00b74cec48522d27e1a73727dd13b79ac61a406f80c0d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FB7 5568 bytes
font_01_sfnt_off00007299.bin
cb8a56cad5f3210834ade14cf3911ef854c9b2f9b7425a795e018db175897eb0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7299 2280 bytes
font_02_sfnt_off00007c9e.bin
93ca11c5093709f5c24c38b56577c70aed524dbb9983156084de31593ab4bafe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C9E 12772 bytes
font_03_sfnt_off0000a5de.bin
2893e3b8b18ac9f9e2381aaad145f18d8979a5531fd1b791c7b07cfc815fb7bc		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA5DE 16096 bytes

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