Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0ff7784c3c36889…

MALICIOUS

PDF

93.9 KB Created: 2020-08-31 02:08:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 91da05a06454496bc58d4cf68cca718b SHA-1: 80be61dd8f2c99f7b438485230a889a262aa8201 SHA-256: c0ff7784c3c36889e1c23c5ea2040cec22ddb3e1b605f5406a8921e054655427
120 Risk Score

Malware Insights

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

The PDF file was identified as a malicious redirector link, pointing to 'https://ttraff.cc/wix?keyword=danganronpa+trigger+happy+havoc+deat'. This indicates a likely phishing or malware distribution attempt. The file also contains a large number of external PDF links, characteristic of a link farm, further supporting the malicious intent. No scripts were extracted, and the document body was heavily obfuscated.

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=danganronpa+trigger+happy+havoc+deat
    • https://cdn.shopify.com/s/files/1/0434/6006/7480/files/67278893811.pdf
    • https://cdn.shopify.com/s/files/1/0430/3149/4810/files/aeronautical_engineering_subjects.pdf
    • https://cdn.shopify.com/s/files/1/0437/8699/3816/files/95108643042.pdf
    • https://cdn.shopify.com/s/files/1/0437/0428/7383/files/88352061939.pdf
    • https://static.usrfiles.com/ugd/5de1df_3af3f2b2e7994ca89c69880259c420ca.pdf
    • https://static.usrfiles.com/ugd/c7a620_879516d27886497d8a2cbeb68095fb5f.pdf
    • https://static.usrfiles.com/ugd/3b47cb_9532a7603e03452a9a730a6c6a7e6150.pdf
    • https://static.usrfiles.com/ugd/b8c837_b5ce2959be1140ceb0e46b680de0cc8e.pdf
    • https://static.usrfiles.com/ugd/fd3290_ddfd53df5966429592761b92dca540fd.pdf
    • https://static.usrfiles.com/ugd/b8c837_e9f61959076245ed9fa00c96a6d56967.pdf
    • https://static.usrfiles.com/ugd/d55797_9c17b0803e8f4a91868012030bba3aef.pdf
    • https://static.usrfiles.com/ugd/dfb5f8_dd64a32f4ddf437781157c0990d7db52.pdf
    • https://static.usrfiles.com/ugd/8d57bd_b9526f713bb5487887b89bcc7f6eb36c.pdf
    • https://static.usrfiles.com/ugd/b8c837_ef1531130b8740b3b675943f0c4e103c.pdf
    • https://static.usrfiles.com/ugd/97634b_48ea304fbbcd4caab6f7586dff39a9a9.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_off0000c2b2.bin
bae9bd2b775eeeabe0b584eaf855f39c56956f1694f0c992741650893289c0d0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC2B2 36248 bytes
font_01_sfnt_off0001330c.bin
fa1b79ac608bce189805ef8248312741b360911ba44de7b15c870c413a60f592		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1330C 5284 bytes
font_02_sfnt_off00014506.bin
b9c1c96dfe539aa41dbc6a99a88e508d7ad5b93d96b5fdd41375b9dfaab93ba8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14506 10820 bytes

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