Malicious PDF — malware analysis report

Static analysis result for SHA-256 23af6cb849aa85d3…

MALICIOUS

PDF

82.7 KB Created: 2020-09-06 10:49:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 419bf77fc1ba487e909953387c913baa SHA-1: 41f62a3f2c2634a8dde80d5e192aa0b776bd5200 SHA-256: 23af6cb849aa85d34938ea5234d3ba23f2323bfbd92fea51ec4c956b43e7e892
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF contains a link that redirects to a malicious domain, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text related to 'Total War Warhammer 2' and the malicious URL, suggesting a lure. The PDF_SEO_LINK_FARM heuristic indicates the PDF is part of a link farm, likely for SEO manipulation or to distribute malicious links.

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=total+war+warhammer+2+dwarves+guide
    • https://static.usrfiles.com/ugd/bc4951_d79e11cdf9274dceb7496303c437ca08.pdf
    • https://static.usrfiles.com/ugd/7dd30d_f3ffcfebfab746e5b565e3607b6323c8.pdf
    • https://static.usrfiles.com/ugd/8acad3_6f3688c85bc94bdd8a32b336a593068a.pdf
    • https://static.usrfiles.com/ugd/ab059d_fd9a0d81c5cf4c249c8d1f6fe27f2189.pdf
    • https://static.usrfiles.com/ugd/3ab5ed_7ba2b156b33b4330880a98c08395719d.pdf
    • https://static.usrfiles.com/ugd/b8c837_0b7fa430d1b84ce7bc63c90139dddeed.pdf
    • https://static.usrfiles.com/ugd/f64db8_9e48aa1db59c4242830909a0132516e0.pdf
    • https://static.usrfiles.com/ugd/828753_fdc2fc41b76b4978b3f5dec8d22f7839.pdf
    • https://static.usrfiles.com/ugd/3649d2_487a8ebd1d9c42a69873beb08ee019af.pdf
    • https://cdn.shopify.com/s/files/1/0433/1274/2550/files/15014942325.pdf
    • https://cdn.shopify.com/s/files/1/0432/3062/5947/files/64025072473.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_off0000f9a9.bin
ae008ace276c6594fa5db858ab16227a5e025629fd572da3d705123dc16be9ea		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF9A9 5248 bytes
font_01_sfnt_off00010b9e.bin
352bd5ee621ee8140c05a7a7c87f8caf70d698d3d25fff264d57d8deccb57380		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10B9E 10516 bytes
font_02_sfnt_off00012f57.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12F57 4324 bytes

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