Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea09d2b5549d4d20…

MALICIOUS

PDF

34.4 KB Created: 2020-08-30 17:41:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6eea0254c1a304914490d8eea7c6e1b8 SHA-1: 06ba3e7729811c9fd51e669e1ef1000d436bacd2 SHA-256: ea09d2b5549d4d2013545a655be937353607b68e5d5aea97a78ef716acc6a491
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many of which point to a redirector infrastructure. The document body text, though heavily obfuscated, contains a URL that matches the malicious redirector. This suggests the document is designed to trick users into clicking the link, likely leading to malware download or a phishing 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=superfly+full+movie+download
    • https://static.usrfiles.com/ugd/b8c837_fa43d1a18dd641ab8843f3894462de78.pdf
    • https://static.usrfiles.com/ugd/1f5cef_a1438c41aaa34410887dbed592004464.pdf
    • https://static.usrfiles.com/ugd/6cf0f5_a5ce47052a9a46e888a055cd5b7d7282.pdf
    • https://static.usrfiles.com/ugd/9757e7_1b71a8e9e47d4a82b600609180fb1083.pdf
    • https://static.usrfiles.com/ugd/c8a981_ffa9347f5cb34a029376c30f84b02709.pdf
    • https://static.usrfiles.com/ugd/b8c837_dd79669ea32441c2a7b886e7b9b0e282.pdf
    • https://static.usrfiles.com/ugd/b8c837_e1243e132fbd4fbe87186680870852b1.pdf
    • https://cdn.shopify.com/s/files/1/0431/3792/5269/files/15557682107.pdf
    • https://cdn.shopify.com/s/files/1/0437/0972/6888/files/pradhan_mantri_awas_yojana_application_form_in_telugu.pdf
    • https://cdn.shopify.com/s/files/1/0432/9222/9797/files/banking_chronicle_2020.pdf
    • https://cdn.shopify.com/s/files/1/0429/0212/6751/files/98755759903.pdf
    • https://static.usrfiles.com/ugd/07ef24_2803b57b8610407e89ac70603fdc64ce.pdf
    • https://static.usrfiles.com/ugd/804ff6_1c858e2f5c264903a79963f9a53a4c24.pdf
    • https://static.usrfiles.com/ugd/e2f7e1_05dd983c01104df1bfb59037772e7610.pdf
    • https://static.usrfiles.com/ugd/b8c837_72cc9411a6e04e4992ef968791678a7a.pdf
    • https://static.usrfiles.com/ugd/b8c837_72ebf9c5e16540a4b39fda9a22bbf247.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_off000047f4.bin
8ed170b9d20213e9d2eef55388b27d39f56f0c1197796606933793692b2175e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x47F4 5368 bytes
font_01_sfnt_off00005a3e.bin
cdb83edb8a7435f9382ef0e5c3c1d2b1016b97c8b6f008d40b60af4fe1c80fe2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A3E 10136 bytes

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