Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5baee0c286ba3dc…

MALICIOUS

PDF

50.2 KB Created: 2020-08-31 05:59:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6d9d43603fbc6952a69e985e27da2c67 SHA-1: 9cade1cfdca781c4167753077101e34332de7c16 SHA-256: d5baee0c286ba3dcfa6642b3057a571f7af06264261a8ffb0469f71e744671a2
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. This URL is embedded within the document body, disguised as a search query for 'intel uhd 630 driver', suggesting a lure to trick users into clicking. The file also exhibits characteristics of a link farm, with numerous embedded URLs, many pointing to Shopify-hosted PDFs. The primary malicious URL is the most significant IOC.

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/wix?keyword=intel+uhd+630+driver
    • https://cdn.shopify.com/s/files/1/0459/9844/0605/files/kotor_2_nar_shaddaa_influence_guide.pdf
    • https://cdn.shopify.com/s/files/1/0432/9452/3552/files/85731909243.pdf
    • https://cdn.shopify.com/s/files/1/0433/9033/7178/files/72885819530.pdf
    • https://cdn.shopify.com/s/files/1/0430/0436/2906/files/44806121875.pdf
    • https://cdn.shopify.com/s/files/1/0432/8292/3676/files/jadafebonelilag.pdf
    • https://cdn.shopify.com/s/files/1/0431/1361/1421/files/zuvizejefemawipezunom.pdf
    • https://cdn.shopify.com/s/files/1/0431/7878/6965/files/82228883212.pdf
    • https://static.usrfiles.com/ugd/b8c837_61a8fd9d557f4068bb5e783080b20db6.pdf
    • https://static.usrfiles.com/ugd/b8c837_20c64357416d4a8f8f58299a4935b3b1.pdf
    • https://static.usrfiles.com/ugd/b8c837_17772981c6da43f3936d302466e8daf8.pdf
    • https://static.usrfiles.com/ugd/b8c837_1d8c67967e934c16be67fbfbc3b00398.pdf
    • https://static.usrfiles.com/ugd/b8c837_9e46784d0e14422c82fdf6e6567ef99a.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000686c.bin
27dabf17e3ba1e7f48c4d4653c17d741b9d275b6d9283b554067ad308e502140		 pdf-font-stream PDF embedded font (sfnt) at offset 0x686C 4984 bytes
font_01_sfnt_off00007959.bin
9e04ce274310ae1ef153b36cfdc4d62a2342cc0ee104006fc979365fb65d8519		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7959 14120 bytes
font_02_sfnt_off0000a600.bin
c3d0ee408bee49a88931d2ac630a9fb52e88a46fabab5a72aa19e78bbe1d3826		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA600 16376 bytes

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