Malicious PDF — malware analysis report

Static analysis result for SHA-256 2bff0992920b27ec…

MALICIOUS

PDF

48.3 KB Created: 2020-08-29 17:22:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 461f664df916cf89d56f9d6e9468d7e3 SHA-1: 754191112becee3772c0f683063e7316f1f2885d SHA-256: 2bff0992920b27ecbda3f6a5736ff49118ced2e6b0cf2201664c2b10dea166e9
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, constituting a link farm. One of these links, https://ttraff.ru/wix?keyword=habibi+ya+nour+el+ain, is identified as a malicious redirector. The document body text is largely unreadable binary data, but the presence of the malicious redirector and the link farm strongly suggest a phishing or malicious redirection attempt.

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.ru/wix?keyword=habibi+ya+nour+el+ain
    • https://static.usrfiles.com/ugd/b8c837_f1774ddf6d114eb98cce210ceae72023.pdf
    • https://static.usrfiles.com/ugd/b8c837_291db2f67b824b52b040b8c96eab7052.pdf
    • https://static.usrfiles.com/ugd/b8c837_65823cc4e8fc42bdb755d0bc994de157.pdf
    • https://static.usrfiles.com/ugd/b8c837_5be3f9a172cd4177b11731fd3b77c14b.pdf
    • https://static.usrfiles.com/ugd/b8c837_6d2de1530d9a40f7a8d9d9c9c6652491.pdf
    • https://static.usrfiles.com/ugd/b8c837_82a531338f2d41258cdb4757896912c0.pdf
    • https://static.usrfiles.com/ugd/b8c837_3287f6c608f146e5b9d64f30e8c8d0a0.pdf
    • https://static.usrfiles.com/ugd/6924eb_2a506997d1ed48b089ecc75891866b3e.pdf
    • https://static.usrfiles.com/ugd/b8c837_0d31316827324b5f8b5c46948da3b33c.pdf
    • https://static.usrfiles.com/ugd/b8c837_fb41f56f20284fd1bd2da0908d5b210d.pdf
    • https://static.usrfiles.com/ugd/b8c837_cad9da7fa409402b9399a38ecaa6359b.pdf
    • https://static.usrfiles.com/ugd/b8c837_14efcd46fbc64a84a07e708303c63fc5.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_off00006542.bin
faa79823df9fff79b9d51c42f1c256d72cea9b9d6ae751935308eefb4705619a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6542 4704 bytes
font_01_sfnt_off0000754f.bin
b4c6ee4cd70432a1f27afa11eeae7ee0ddec456bb854d2d6ae8265e58a216c45		 pdf-font-stream PDF embedded font (sfnt) at offset 0x754F 12076 bytes
font_02_sfnt_off00009ad0.bin
970dd5fae15b75bc44b7085da72dd81dc063ad658bdca82e4a7bafad8c110ab0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9AD0 16912 bytes

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