Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ea2c7384d740a8f…

MALICIOUS

PDF

48.7 KB Created: 2020-08-18 20:45:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 68f809121f59cf5d45c932c6b49ccfa0 SHA-1: cd8d83b257f4c59fc083d27e60570ead5c05c4c5 SHA-256: 4ea2c7384d740a8ff5a5026c11b7d11e24d92e2ec8ad9db7d87e5ed9440e8fd8
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains text that appears to be a lure related to movie songs, directing the user to click the embedded malicious URL. This suggests a phishing attempt to redirect users to malicious infrastructure.

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.com/pify?keyword=bahubali+2+movie+tamil+songs+free
    • http://dupeta.bullvilleanimalhospital.com/uploads/1/3/1/6/131637814/sanexabuwiduloval.pdf
    • http://wadajiji.iaabo152.org/uploads/1/3/1/6/131637284/5703472.pdf
    • http://files.grantdevelopments.com/uploads/1/3/1/3/131378932/9885453.pdf
    • https://cdn.shopify.c
    • https://cdn.shopify.com/s/files/1/0429/9295/9642/files/8765318986.pdf
    • https://cdn.shopify.com/s/files/1/0436/2846/2233/files/76872755801.pdf
    • https://cdn.shopify.com/s/files/1/0433/5537/3720/files/92545968134.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/89709194360.pdf
    • https://cdn.shopify.com/s/files/1/0427/9628/6111/files/7190475670.pdf
    • https://cdn.shopify.com/s/files/1/0447/5171/6503/files/dissertation_sur_l_afrique_berceau_de_l_humanit.pdf
    • https://cdn.shopify.com/s/files/1/0432/9334/3912/files/84202852476.pdf
    • https://cdn.shopify.com/s/files/1/0433/2732/4310/files/7203642540.pdf
    • https://cdn.shopify.com/s/files/1/0434/7147/0742/files/76959805142.pdf
    • https://cdn.shopify.com/s/files/1/0441/0766/1464/files/lifutirusimili.pdf
    • https://cdn.shopify.com/s/files/1/0433/6238/6079/files/33609320572.pdf
    • https://cdn.shopify.com/s/files/1/0434/0980/1365/files/javew.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_off000076c4.bin
d32b4a49a7cd56ec02338cd904fc9af17655d2765d79ac580e1c8c264bf9015f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76C4 5560 bytes
font_01_sfnt_off00008998.bin
58da85d747b5bd0c8ce8ed73baa235b64c9f58952108dcb8ba5fb174b5323332		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8998 14132 bytes

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