Malicious PDF — malware analysis report

Static analysis result for SHA-256 339fd20692738a86…

MALICIOUS

PDF

40.6 KB Created: 2020-08-29 14:42:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7ac49ceee44645c2f535f681b1f0c40b SHA-1: 2ce3313731d57b48574cf3add6f19f9e3a1d5f38 SHA-256: 339fd20692738a8664ebbc682a1bdc826b04c552d1e993192c99228ac5d80a00
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating a malicious redirector link. The document body, though heavily obfuscated, also contains the same suspicious URL. This suggests the primary purpose of the document is to redirect the user to a malicious site, likely for phishing or malware delivery. No scripts were extracted, limiting further analysis of the payload.

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=the+crownless+again+shall+be+king
    • https://static.usrfiles.com/ugd/b8c837_fefe531d7f564c27b32e55273aa86ebf.pdf
    • https://static.usrfiles.com/ugd/b8c837_8ed5dcf84bea4e1887ed27bc043eac2f.pdf
    • https://static.usrfiles.com/ugd/299074_36b6995b9b07497faeefed75fb40b304.pdf
    • https://static.usrfiles.com/ugd/b8c837_d8ce5acb8d0747bc9a93e04fd301b2ea.pdf
    • https://cdn.shopify.com/s/files/1/0434/4987/6630/files/14718747554.pdf
    • https://cdn.shopify.com/s/files/1/0430/9182/0711/files/sedubagisanowu.pdf
    • https://cdn.shopify.com/s/files/1/0431/2009/9488/files/80349342391.pdf
    • https://cdn.shopify.com/s/files/1/0431/5847/0813/files/metufiro.pdf
    • https://cdn.shopify.com/s/files/1/0440/4995/7029/files/26992745372.pdf
    • https://cdn.shopify.com/s/files/1/0434/0498/4483/files/potawilenodewinilira.pdf
    • https://static.usrfiles.com/ugd/b8c837_7ab01781d3474c49a422571828fbf4a2.pdf
    • https://static.usrfiles.com/ugd/b8c837_1ae5ab0ca06441bd9af09e5df5bef020.pdf
    • https://static.usrfiles.com/ugd/b8c837_607fbfb1d5f645238b825f8f09e0339f.pdf
    • https://static.usrfiles.com/ugd/b8c837_a0ce30be00e344cbada7ca0ea8cfc5bf.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_off0000617e.bin
7d9729f031583025ece05b10615b76202dade71a2456667c717c5d9385fab36b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x617E 5308 bytes
font_01_sfnt_off00007398.bin
b2ffa146880089d7e2265a225643c6b0898cf22c8be00026279422fb8cf97361		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7398 9908 bytes

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