Malicious PDF — malware analysis report

Static analysis result for SHA-256 ddd2d373778f3080…

MALICIOUS

PDF

42.2 KB Created: 2020-08-30 06:00:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 441b7b38df551ec5ff84604c270ee665 SHA-1: d0d9354b27b2e12e50d781addd876cca7c030c91 SHA-256: ddd2d373778f30805e74b572d9e098da6f64658875b2efeff2b2a2bad4328764
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/wix?keyword=imagery+words+for+blood'. It also exhibits characteristics of a PDF SEO link farm, with numerous embedded links, many of which point to benign Shopify domains. The document body contains a title that appears to be a lure, and the embedded links likely serve to direct users to malicious infrastructure. No scripts were extracted from this sample.

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=imagery+words+for+blood
    • https://static.usrfiles.com/ugd/3aca14_75b01c29429f4d80afa64a7ae1f01e1b.pdf
    • https://static.usrfiles.com/ugd/61b8bf_ffd8e06205e4465bb4536f0b16c906c0.pdf
    • https://static.usrfiles.com/ugd/b8c837_356757b73cb642b19deb0bff8ac64bd6.pdf
    • https://static.usrfiles.com/ugd/b8c837_ea5c6f37434c4358935f830292bf100c.pdf
    • https://cdn.shopify.com/s/files/1/0431/8606/1480/files/ascap_performance_fees.pdf
    • https://cdn.shopify.com/s/files/1/0428/1024/5279/files/game_of_thrones_season_1_complete_kickass.pdf
    • https://cdn.shopify.com/s/files/1/0430/5348/2138/files/619297002.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/20745245188.pdf
    • https://cdn.shopify.com/s/files/1/0438/3935/7093/files/34188955244.pdf
    • https://cdn.shopify.com/s/files/1/0431/1384/0793/files/72706616929.pdf
    • https://cdn.shopify.com/s/files/1/0437/0504/1051/files/21932968995.pdf
    • https://static.usrfiles.com/ugd/7e6083_741ce4a4eb854aa58b13ee618cd32dca.pdf
    • https://static.usrfiles.com/ugd/0aab01_29b1d6f9ae0d47118ee0c2e19a44b24b.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_off0000652f.bin
fe37a8ecd2096bb7b3badfe456106f5cca0be60b7ee7dbff882f9e84617f2c69		 pdf-font-stream PDF embedded font (sfnt) at offset 0x652F 5496 bytes
font_01_sfnt_off000077d6.bin
2c33792320ce14b87b46ae49ed0500d11b2cdfe60f2a0f9785d03bfe4622cb46		 pdf-font-stream PDF embedded font (sfnt) at offset 0x77D6 10836 bytes

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