Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee63066419220227…

MALICIOUS

PDF

39.6 KB Created: 2020-08-30 01:22:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8acdc7e7845d662d23ea693ee99eb284 SHA-1: 830deba6b7333b1da72cece7f9fa5cbff764bbf1 SHA-256: ee63066419220227a4cb6c6703204f16a68b57020e8d7feb9fdf10deeb749f41
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external PDF documents hosted on static.usrfiles.com. One of the primary links directs the user to a known malicious redirector at ttraff.me. This suggests a link farm or redirection attack designed to lead users to malicious content. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the exact lure.

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.me/wix?keyword=daughter+of+coldharbour+ritual
    • https://static.usrfiles.com/ugd/b8c837_7561fce18c124605ba7d43927f70ad2c.pdf
    • https://static.usrfiles.com/ugd/97368a_73cd7c724a42428788d167ba3aaf2e89.pdf
    • https://static.usrfiles.com/ugd/b8c837_c58d8df523b14f43acf75b7ae7f7cb34.pdf
    • https://static.usrfiles.com/ugd/0286dd_6ead104ae3634ac085108235bc4bcdd6.pdf
    • https://static.usrfiles.com/ugd/b8c837_58920cc15e0a48b4b9f9f191845df1f3.pdf
    • https://cdn.shopify.com/s/files/1/0433/9240/1558/files/44385612077.pdf
    • https://cdn.shopify.com/s/files/1/0429/6779/3817/files/poganozotunise.pdf
    • https://cdn.shopify.com/s/files/1/0429/4872/2851/files/kupulomedanupu.pdf
    • https://static.usrfiles.com/ugd/b8c837_761b9148caf1494e9b92c5d24bcd24fc.pdf
    • https://static.usrfiles.com/ugd/b8c837_3d9adcf7f3cb4488831910998b3b39ba.pdf
    • https://static.usrfiles.com/ugd/cbdbb6_ede0e0e55601470a846b1402ba89d9c2.pdf
    • https://static.usrfiles.com/ugd/07e02c_39df2151407e41c3981ed2d97be7fa03.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_off00005dae.bin
9fd5f6e881b672ca2ad1a3fbbd4e253b7b64ae315a5e1965e8bdd0741a9eae9a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DAE 5244 bytes
font_01_sfnt_off00006f7a.bin
f39c2d60d795f3745d4b4d49f66bd227a90e214f591d467d22c20a98dc0ace48		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F7A 10012 bytes

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