Malicious PDF — malware analysis report

Static analysis result for SHA-256 e06d22ca6f249071…

MALICIOUS

PDF

44.7 KB Created: 2020-08-30 10:54:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: abd051ae9df4edcc8fcf60c0afed5079 SHA-1: d8995d643d1879f97af5a5ecf20978378d51ddb2 SHA-256: e06d22ca6f2490718a25a4f7c8aec6b07e40d1f9023a13e773a5df8617ffe25e
160 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link and a link farm, indicating a social engineering attempt. The document body, though partially corrupted, contains URLs that are part of this link farm. The primary malicious URL identified is https://ttraff.ru/wix?keyword=foxit+phantompdf+portable+full, which is likely used to redirect the user to a malicious site. The presence of a browser extension installation lure further supports the social engineering attack pattern.

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.ru/wix?keyword=foxit+phantompdf+portable+full
    • https://cdn.shopify.com/s/files/1/0434/5469/3537/files/wigejabiduboxer.pdf
    • https://cdn.shopify.com/s/files/1/0433/4488/7966/files/8601533020.pdf
    • https://cdn.shopify.com/s/files/1/0428/6958/8124/files/40951413756.pdf
    • https://cdn.shopify.com/s/files/1/0428/0372/4455/files/gekitiwalemizukewoveni.pdf
    • https://static.usrfiles.com/ugd/b8c837_f03054af6d0643b48543cb0a14d3a541.pdf
    • https://static.usrfiles.com/ugd/b8c837_9151738f30464518a1a30bcad4501425.pdf
    • https://static.usrfiles.com/ugd/a01749_6a191d0d6aba49e8a8d360eae51a24d6.pdf
    • https://static.usrfiles.com/ugd/b8c837_6694744333924d179f20ebd4164a7612.pdf
    • https://static.usrfiles.com/ugd/b8c837_2bc0d304f2534ce2b8950baf88f97989.pdf
    • https://static.usrfiles.com/ugd/3826db_94d05797f5394b37a2a190b6cda81243.pdf
    • https://static.usrfiles.com/ugd/238140_529a6bdeeb1d46b397f2e8da327de3f1.pdf
    • https://static.usrfiles.com/ugd/b8c837_0abb086997794cdb867f6fd60c66575f.pdf
    • https://static.usrfiles.com/ugd/b8c837_c1584a88629b41319ec3c2f91c7583ef.pdf
    • https://static.usrfiles.com/ugd/b8c837_9b943771cd09414485b7e159079aa3aa.pdf
    • https://static.usrfiles.com/ugd/ea9bdf_a6a85239ebf34cfcae010899fd201635.pdf
    • https://static.usrfiles.com/ugd/ca9b0a_08fc55d797cb42cea6254e80124489fc.pdf
    • https://static.usrfiles.com/ugd/5fd5c1_c74260ce66ff477988848009045095b0.pdf
    • https://static.usrfiles.com/ugd/b8c837_c5457d31b2ec4059a31b98aa8781f0d3.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/
    • https://static.usrfiles.com/ugd/b8c837_6694744333924d179f20e

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006f94.bin
91efb57e007a19fc70b977c18c17c19aff9ae0c58828ecd7cda363614386e7e9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F94 5268 bytes
font_01_sfnt_off0000814e.bin
6bee47e8ac0549dc0285e03d508fc70dcbb4d70d3ab1b227139901a359076199		 pdf-font-stream PDF embedded font (sfnt) at offset 0x814E 10732 bytes

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