Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0084878e46a9a5b…

MALICIOUS

PDF

58.3 KB Created: 2020-08-30 09:23:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 43bfb9105946f0f9934b9a01d9e92c7b SHA-1: 2acd3fb995b6a0f85874c6a96e634db7dd8695af SHA-256: d0084878e46a9a5bf706d0ae3dc7ed858e323529e0f3e3deca24badd85ddfee2
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/wix?keyword=porque+el+amor+manda+capitulo+106'. The document body, though heavily obfuscated, appears to contain the same URL, suggesting the primary intent is to redirect the user to this malicious site. The file also exhibits characteristics of a link farm, with numerous embedded URLs, further supporting the malicious redirection pattern.

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=porque+el+amor+manda+capitulo+106
    • https://static.usrfiles.com/ugd/455f95_51ad6fb1f25040df8af67012bf1c5f0e.pdf
    • https://static.usrfiles.com/ugd/76156b_c950b686e2c444e0b1058e8a9b95cfff.pdf
    • https://static.usrfiles.com/ugd/b8c837_e43df2f9b04c402e848935d96cd244f6.pdf
    • https://static.usrfiles.com/ugd/b8c837_97ae035b272045479be49a6e15ce87e1.pdf
    • https://static.usrfiles.com/ugd/b8c837_3bc455fa54b648b889bd93a03fbf31a3.pdf
    • https://static.usrfiles.com/ugd/ecec20_350d885fe4c1451bb714cbe91dc9c0b3.pdf
    • https://static.usrfiles.com/ugd/5cf23b_b55e7edca9e64b09a75702ebfe447fa6.pdf
    • https://static.usrfiles.com/ugd/b8c837_ba3326000c4c431b9463f4676d64e347.pdf
    • https://static.usrfiles.com/ugd/b8c837_e89481e684a14465a2f29f9b678df186.pdf
    • https://static.usrfiles.com/ugd/b56239_d91bb08173374958aceb41a71beb1d50.pdf
    • https://static.usrfiles.com/ugd/e8506d_61374a36d9b341f080ce9c8b375f1bc0.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/
    • https://static.usrfiles.com/ugd

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a3ae.bin
bf9131201a55f27e0de7ee93cadb1c550e4ffba49c3444bcedfffe53dc0076aa		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA3AE 5516 bytes
font_01_sfnt_off0000b657.bin
b0a3fff3e455a3348d695d536450159fcd5485d04ef8ae806a85099edfb2164f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB657 11156 bytes

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