Malicious PDF — malware analysis report

Static analysis result for SHA-256 cbeb4e933fdc19ec…

MALICIOUS

PDF

48.1 KB Created: 2020-08-30 02:55:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9249806d53070902d77d62e223043bd0 SHA-1: c3676a5e1ddf82c410e23ee5dd75dc49e063832d SHA-256: cbeb4e933fdc19ecb98010ca5e2882053e9e251f1e53801c383aa532004fb916
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic indicating it's a malicious redirector, pointing to 'https://ttraff.cc/wix?keyword=duck+game+cheat+engine'. The document body, though heavily obfuscated, also contains this URL, suggesting the primary intent is to redirect users to potentially harmful content. The presence of numerous other links hosted on Shopify, while marked as benign, contributes to a link farm pattern, likely for SEO manipulation to increase visibility of the malicious redirector.

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=duck+game+cheat+engine
    • https://cdn.shopify.com/s/files/1/0437/6032/0669/files/adobe_acrobat_pro_reduce_file_size.pdf
    • https://cdn.shopify.com/s/files/1/0434/4227/4454/files/physiology_practical_book_gk_pal.pdf
    • https://cdn.shopify.com/s/files/1/0432/7853/2758/files/luxenetomelirif.pdf
    • https://cdn.shopify.com/s/files/1/0432/3662/2498/files/7789039482.pdf
    • https://cdn.shopify.com/s/files/1/0430/7307/7409/files/33726089122.pdf
    • https://cdn.shopify.com/s/files/1/0440/1148/7397/files/satixer.pdf
    • https://cdn.shopify.com/s/files/1/0429/5393/2966/files/11885218676.pdf
    • https://cdn.shopify.com/s/files/1/0436/8554/4089/files/rare_form_of_adrenal_gland_cancer.pdf
    • https://cdn.shopify.com/s/files/1/0440/2230/0822/files/toyota_4runner_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/1023/6314/files/82788148320.pdf
    • https://static.usrfiles.com/ugd/2c8d66_01c9c412005d43a6a996c86069e175ff.pdf
    • https://static.usrfiles.com/ugd/b8c837_59ea315c6e2249a7b59a97cd758be3dc.pdf
    • https://static.usrfiles.com/ugd/b8c837_36c939219dcd4e2ba3d00a4f8ec0ad36.pdf
    • https://static.usrfiles.com/ugd/271e65_0136933711a64886926c9f9ebf3347a3.pdf
    • https://static.usrfiles.com/ugd/b8c837_b34d500d95844267aa7a0fb2f1b9653a.pdf
    • https://static.usrfiles.com/ugd/b8c837_c8b5fbe519dd4d489f77557477427c74.pdf
    • https://static.usrfiles.com/ugd/b8c837_ad2a0f22c7be40129c68c2f642b7d6ab.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_off00007c8e.bin
fc603eb84b90ea574b17b4ba8dcd8b7e9812f716f5b4ac7f01145311accbc788
pdf-font-stream PDF embedded font (sfnt) at offset 0x7C8E 4972 bytes
font_01_sfnt_off00008d6a.bin
243d693980e187cb5f2575786512e5a2fe39ba3eac7bc722f55653c697a0342a
pdf-font-stream PDF embedded font (sfnt) at offset 0x8D6A 11816 bytes