Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b274637159d5326…

MALICIOUS

PDF

40.6 KB Created: 2020-09-01 14:46:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8e07d8f39f70e108a03b0ba8d6655c61 SHA-1: aaf7d78c5778267522ad441fd7da44b40fd031ae SHA-256: 2b274637159d5326d4b62a3798efc1b9b648450ad347ede17450201ca7bb8373
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, a technique often used in SEO poisoning or link farm attacks. One of the primary URLs, 'https://ttraff.ru/wix?keyword=excel+monthly+budget+template+pdf', is flagged as a known malicious redirector. This suggests the document's purpose is to lure users to malicious sites, likely for phishing or to download further malware.

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=excel+monthly+budget+template+pdf
    • https://static.usrfiles.com/ugd/4d400c_e1d2303002e7478b9910809fd8fb58b4.pdf
    • https://static.usrfiles.com/ugd/b8c837_8432177643f44956bbf81b136dba065b.pdf
    • https://static.usrfiles.com/ugd/b8c837_d3faba924c5144b0899bbc2da6b149b6.pdf
    • https://static.usrfiles.com/ugd/4117a9_ebf3e909e27b4207b872afd832bd634c.pdf
    • https://cdn.shopify.com/s/files/1/0431/0790/9781/files/a_cinderella_story_script.pdf
    • https://cdn.shopify.com/s/files/1/0430/0144/6554/files/kujezagojatekitusufizo.pdf
    • https://cdn.shopify.com/s/files/1/0434/5197/3799/files/definition_of_business_process.pdf
    • https://cdn.shopify.com/s/files/1/0431/0577/9863/files/kanotanedanajamibaput.pdf
    • https://static.usrfiles.com/ugd/0d9a50_32533b6d3eb14594b054b2705e9a3c34.pdf
    • https://static.usrfiles.com/ugd/6290de_da51699062ba43039a46c5ae8c0d25ab.pdf
    • https://static.usrfiles.com/ugd/b910ae_f7bcb378855842029ccc0388cbf4d09b.pdf
    • https://static.usrfiles.com/ugd/b8c837_03e71a6d8ab54cdc899373fa898d0b7f.pdf
    • https://cdn.shopify.com/s/files/1/0440/7872/7318/files/riladasetavaneginepo.pdf
    • https://cdn.shopify.com/s/files/1/0436/0844/0990/files/14387569156.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_off00005ecc.bin
509c8701e7a367a344e61bdde3ac2cb98337f4c993496e5b1ec267189002a526		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5ECC 5564 bytes
font_01_sfnt_off000071ac.bin
2d39393e8aad9ada0759199902f7de09eb109e399971ffb5ff2af3bbee3c014f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x71AC 10588 bytes

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