Malicious PDF — malware analysis report

Static analysis result for SHA-256 48609d63d68d1603…

MALICIOUS

PDF

51.9 KB Created: 2020-09-08 11:04:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2b9d8e87374208f5fd78d4f75846b63d SHA-1: fcea62e792490fd4b7366690bbcb720c699c29a5 SHA-256: 48609d63d68d16039bc6055ed93da295a786f08e8a683854343ffed1c4272750
162 Risk Score

Malware Insights

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

The PDF file contains a social engineering lure, presenting itself as a link to the 'latest bhojpuri movie site'. This link, however, redirects to a known malicious domain (ttraff.club). The document also contains a large number of links to external PDFs hosted on static.usrfiles.com, suggesting a link farm or redirection strategy. The presence of a browser extension installation lure further supports the malicious intent.

Heuristics 4

  • 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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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.club/wix?keyword=latest+bhojpuri+movie++site
    • https://static.usrfiles.com/ugd/99afdc_0ce7a1a8ea0d451fba142a420d4d41fb.pdf
    • https://static.usrfiles.com/ugd/b8c837_e4070b95493a40ac9285ce3d84f40896.pdf
    • https://static.usrfiles.com/ugd/9e53d4_4bd3c1f8061c4a20b294b0dd3686e523.pdf
    • https://static.usrfiles.com/ugd/78c764_5acf5e726c764916abcf741fa4df9036.pdf
    • https://static.usrfiles.com/ugd/1a89c8_915a8d82e4c34dc49b1d748ede1ab433.pdf
    • https://static.usrfiles.com/ugd/d2057d_281d488d960949ac94bc89a772d19b90.pdf
    • https://static.usrfiles.com/ugd/d79848_aa319b5266a14e32b5f71fbd7f958df1.pdf
    • https://static.usrfiles.com/ugd/8b97dd_29f0d5ce1720440da129a415acd0b600.pdf
    • https://static.usrfiles.com/ugd/374ce0_3cfee0e5c9b3445e96db77a77033d4ae.pdf
    • https://static.usrfiles.com/ugd/1c90dc_dc44de3a44574d8497bddfeeb057a50c.pdf
    • https://static.usrfiles.com/ugd/b8c837_7a89a4e3fcf743368fc4a457e6908820.pdf
    • https://static.usrfiles.com/ugd/fe83c3_23c657c6fef7483d9d460339cdb0dd4b.pdf
    • https://static.usrfiles.com/ugd/dc98cc_d5c27914b66b44d2b7bd0fc44fb6db14.pdf
    • https://static.usrfiles.com/ugd/3826db_52ac38cb9077402a971670efe83c0e46.pdf
    • https://cdn.shopify.com/s/files/1/0429/6710/5687/files/werebopifemobudipifuraz.pdf
    • https://cdn.shopify.com/s/files/1/0431/6856/3355/files/14060757500.pdf
    • https://cdn.shopify.com/s/files/1/0432/4491/2802/files/89909610021.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000060c6.bin
4ef6eda17888830e495cca785bd7c45a7831729eab7c85fe0f8b33066f058642		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60C6 5244 bytes
font_01_sfnt_off00007276.bin
b91f3c26f37c28538ed09035cbea6f9221827f1e30b50c452f08cc820bcc167b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7276 3720 bytes
font_02_sfnt_off00007dd1.bin
e9a5a1f6ed95b1e3669933bb00002ad32a1708c3e0b735191cad5e02368a6c7d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7DD1 1800 bytes
font_03_sfnt_off0000865f.bin
10640e0d97502ba87bee71c97fc22524b614eb07737d4342bd8c14788d402991		 pdf-font-stream PDF embedded font (sfnt) at offset 0x865F 10300 bytes
font_04_sfnt_off0000a997.bin
66b7b8810ad612ce1a8f13b4e448a24c23756b8f5646480b57d91536ad3f2791		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA997 6988 bytes

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