Malicious PDF — malware analysis report

Static analysis result for SHA-256 484397f4f02a5926…

MALICIOUS

PDF

36.1 KB Created: 2020-08-29 14:31:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ad62c02396f95ee4612ca98c4e9ee228 SHA-1: 71a4f9a2cab389d731659f7ab2cd83357ae8b34e SHA-256: 484397f4f02a5926a34d2d397c807c6912927d1f389a07db85eefafed4075bff
150 Risk Score

Malware Insights

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

The PDF contains a prominent link to 'ttraff.cc' which is flagged as a malicious redirector. The document body, though heavily obfuscated, contains text related to downloading content and the malicious URL itself. This suggests a social engineering attack aiming to trick the user into clicking the link, likely leading to malware download or a phishing site. The presence of numerous other PDF links, many pointing to Shopify, indicates a potential link farm or SEO poisoning tactic.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.cc/wix?keyword=starlito+and+don+trip+step+brothers+2+download+zip
    • https://cdn.shopify.com/s/files/1/0429/4190/7100/files/cutting_hair_style_image.pdf
    • https://cdn.shopify.com/s/files/1/0433/9436/7649/files/21418433899.pdf
    • https://cdn.shopify.com/s/files/1/0429/2119/7724/files/61275020948.pdf
    • https://cdn.shopify.com/s/files/1/0434/0213/3671/files/kidunerizedonaboralatu.pdf
    • https://static.usrfiles.com/ugd/b8c837_fda10cddaff840628864dae0117e75c7.pdf
    • https://static.usrfiles.com/ugd/b8c837_44c12939e27449dca1e76783b80fd58e.pdf
    • https://static.usrfiles.com/ugd/b8c837_a21f28d8f01041dbaa3e5affb1b8db98.pdf
    • https://static.usrfiles.com/ugd/b8c837_2a7bdc07bba64e4ebe8f228bde5ffe9d.pdf
    • https://static.usrfiles.com/ugd/b8c837_99fe961d527c40e48348b34a240f6a04.pdf
    • https://static.usrfiles.com/ugd/b8c837_9cf5d56a661243fba9817a90c2b050e1.pdf
    • https://static.usrfiles.com/ugd/b8c837_07ccc022868442ab9af9b159a8e2e6a3.pdf
    • https://static.usrfiles.com/ugd/b8c837_1063543c2d9b460a9568a7c07e9d1dca.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_off00004dc0.bin
bc1f47734cb283ce27bc2c69ca285748b098adcc1fd7a67db28f79469bc3f697		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4DC0 5564 bytes
font_01_sfnt_off000060af.bin
0d6966b98d96921ce37f0e722873ac9f6dfc21b99dc69af82aeac2777629c840		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60AF 10312 bytes

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