Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c46f0df9f2cfcce…

MALICIOUS

PDF

89.4 KB Created: 2020-08-31 23:18:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 61b5e9b39eeba01f6010e37a4c3b6de8 SHA-1: 0dc8b75326101d62bac14371274c1373cf468abf SHA-256: 3c46f0df9f2cfccea42fc99bbb7c69a3720f21c114705dd118e7df1dc9314fb4
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.me/wix?keyword=divinity+2+builds+guide'. This URL is presented within the document body, disguised as a game guide, to entice users to click. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many of which point to Shopify and static.usrfiles.com domains, likely for SEO manipulation or to host further malicious content.

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=divinity+2+builds+guide
    • https://cdn.shopify.com/s/files/1/0437/0599/1322/files/niruzoketomufe.pdf
    • https://cdn.shopify.com/s/files/1/0434/0593/4757/files/88643874687.pdf
    • https://cdn.shopify.com/s/files/1/0430/6790/0061/files/37891585727.pdf
    • https://cdn.shopify.com/s/files/1/0434/1766/5701/files/report_acknowledgement_sample.pdf
    • https://cdn.shopify.com/s/files/1/0432/6454/0835/files/13261050828.pdf
    • https://static.usrfiles.com/ugd/7ea8bb_0818be273b524c078933bc7225ce5ed7.pdf
    • https://static.usrfiles.com/ugd/b8c837_c8a3b5f26b1c43e3b0c78f03e4a0e224.pdf
    • https://static.usrfiles.com/ugd/b6edda_8066ca0ae3a94e7190118633183eb62f.pdf
    • https://static.usrfiles.com/ugd/0779a3_7f5b26b541264db0b205382b7c757d82.pdf
    • https://static.usrfiles.com/ugd/b0cd75_42dffa0178404f339a0a65df02464a45.pdf
    • https://static.usrfiles.com/ugd/e42ee3_6b76d8f7a4234db59cb93e1ac658bafb.pdf
    • https://static.usrfiles.com/ugd/40512e_5b5c4a82f88446248df3008ab2b56cbe.pdf
    • https://static.usrfiles.com/ugd/b8c837_7eaebefef42b4d12b2474f6936f870e8.pdf
    • https://static.usrfiles.com/ugd/bdeb4c_4258ca6a54304a1e8692c82e65c45c0d.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_off00012348.bin
1c32bdac1ebe09b432ba462aeba2278fb58bb34273314769b953a3b60fb9ef09		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12348 5120 bytes
font_01_sfnt_off000134de.bin
b16afd03d63e535481c54627970b9aeb7978cc4940318f6cd41c909ea753c74e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x134DE 10360 bytes

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