Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8c3ce616c6ab9bc…

MALICIOUS

PDF

67.5 KB Created: 2020-08-30 08:22:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 50b49a0fd9fdb4d63f921c54f9744315 SHA-1: e8a64197075f22278e8105cf581290ae094c71b3 SHA-256: d8c3ce616c6ab9bcfef0722d70d1f990e1379707eaa32fed06d6efaf2ea886f8
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic match for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to malicious infrastructure. The embedded URL, 'https://ttraff.com/wix?keyword=bioshock+remastered+cheat+engine', is likely part of a phishing or scam campaign aiming to trick users into visiting potentially harmful sites. The document body, though heavily obfuscated, contains the same URL, reinforcing its role in the attack.

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=bioshock+remastered+cheat+engine
    • https://static.usrfiles.com/ugd/b8c837_3c18c599f1804bd293cf5e7b71338cb3.pdf
    • https://static.usrfiles.com/ugd/b8c837_26bb621c7d8248298c8faafd44e75198.pdf
    • https://static.usrfiles.com/ugd/93c935_f2d780fffb364f699e226e5c2c3a50c5.pdf
    • https://static.usrfiles.com/ugd/cf14a4_74c8578095da4b3aba574d90889949d9.pdf
    • https://static.usrfiles.com/ugd/0f5b72_fd967131d0834e96ad74ec6aba7011fd.pdf
    • https://static.usrfiles.com/ugd/429b25_d55a47295ed04a668f90647fd91308b7.pdf
    • https://static.usrfiles.com/ugd/b8c837_41401a2f0eea43b1b83d15ee84866c36.pdf
    • https://static.usrfiles.com/ugd/e3325f_f7c9e71b12ba4c49ab4b7bae63c6cbef.pdf
    • https://static.usrfiles.com/ugd/c0fca2_2e70e5b84df94684accacd06c154f119.pdf
    • https://cdn.shopify.com/s/files/1/0434/0544/3237/files/75019370354.pdf
    • https://cdn.shopify.com/s/files/1/0431/6725/2629/files/42800266697.pdf
    • https://cdn.shopify.com/s/files/1/0430/7825/4745/files/70509706899.pdf
    • https://cdn.shopify.com/s/files/1/0439/4090/5128/files/siwixonibabuxikilukox.pdf
    • https://cdn.shopify.com/s/files/1/0428/6775/3116/files/11710204161.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_off0000b2fb.bin
ce35a0b0cdb7a0a3997f7d273ae53d09d2c2c9a952196b58701c3bfa65c763df		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB2FB 5220 bytes
font_01_sfnt_off0000c48c.bin
19f6efe28e4f5de209d88c685d5de48f8bd692238dcbec3eec34d877009b12dd		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC48C 14844 bytes
font_02_sfnt_off0000f283.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF283 4324 bytes

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