Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3ad92181e3de05b…

MALICIOUS

PDF

40.2 KB Created: 2020-08-30 17:01:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 54391d0a0b24c08cdd7d6468951b7e8b SHA-1: c1cb72f9bfcc7c57a1a91b105c3a1d6591a9af54 SHA-256: e3ad92181e3de05b6bdf9da01e4312c2c5fddf99b485521bba170c16453e023e
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a link farm designed to manipulate search engine results. One prominent link, 'https://ttraff.ru/wix?keyword=nim%2527s+island+full+movie+dailymotion', is identified as a malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting a social engineering attempt to trick users into clicking the link under the guise of watching a movie.

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=nim%2527s+island+full+movie+dailymotion
    • https://cdn.shopify.com/s/files/1/0434/8094/0710/files/taxugusujatorovu.pdf
    • https://cdn.shopify.com/s/files/1/0448/0850/3456/files/catalogo_de_cuentas_de_un_hotel.pdf
    • https://cdn.shopify.com/s/files/1/0436/3635/9326/files/minawofujevudowebasoximo.pdf
    • https://static.usrfiles.com/ugd/a58b01_4e642455aba3403888dd2cb9a18de5d3.pdf
    • https://static.usrfiles.com/ugd/b8c837_ef21ab562a21423da427b2b5f7edfb67.pdf
    • https://static.usrfiles.com/ugd/dc98cc_2c946d98e66441a79add6809cf00580c.pdf
    • https://static.usrfiles.com/ugd/b8c837_5e363015ff504085a3de576f5df0ec33.pdf
    • https://cdn.shopify.com/s/files/1/0428/0595/2671/files/29470019188.pdf
    • https://cdn.shopify.com/s/files/1/0433/3525/4170/files/zerikironej.pdf
    • https://cdn.shopify.com/s/files/1/0437/7211/7141/files/poponeladotiso.pdf
    • https://static.usrfiles.com/ugd/b8c837_f7b843f1e83749d39fba0c89e809f944.pdf
    • https://static.usrfiles.com/ugd/b80405_523a803666ba42a4ac990d3dee0258b9.pdf
    • https://static.usrfiles.com/ugd/58a813_ebbcee5e6d3e4df688ac76b5a4a3d6f6.pdf
    • https://static.usrfiles.com/ugd/834936_2e52c489a7ad4fd187944198f5d27ae9.pdf
    • https://static.usrfiles.com/ugd/43d598_346c51631336481e924e4ce9f03093ef.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_off00005e23.bin
80a1720bf04afd621867ad016c23f7b28dafb153090c8aa7b4be0e6ac6d30828		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E23 5120 bytes
font_01_sfnt_off00006f94.bin
918a0182efae5b8eb99339a14ecf6aac0ae20a737cdf2d2352d68b2d6b5b5200		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F94 10492 bytes

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