Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e8436bc91b9c953…

MALICIOUS

PDF

40.4 KB Created: 2020-08-29 05:18:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5a208f0b29cce469bad1989eb5a5339e SHA-1: 59b68f04efb4860fd328c3d285f0ab39ad4b3992 SHA-256: 8e8436bc91b9c95392638e434ec49763f04b1f3d9f02d7f9c8d7ace43e15bb7f
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded URLs, with one identified as a malicious redirector. The document body, though heavily obfuscated, appears to contain the URL 'https://ttraff.cc/wix?keyword=out+from+boneville+pdf', which is flagged as malicious. The presence of a large link farm hosted on 'static.usrfiles.com' further suggests a SEO spam 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.cc/wix?keyword=out+from+boneville+pdf
    • https://static.usrfiles.com/ugd/b8c837_43be3bc142ca4fbea274bbe945c4e436.pdf
    • https://static.usrfiles.com/ugd/b8c837_4a1294d9ed1a4a2b9e138cccafa0e55e.pdf
    • https://static.usrfiles.com/ugd/b8c837_99d81550f2d043c0ae25a9aa20ca5d12.pdf
    • https://static.usrfiles.com/ugd/b8c837_1dec1250e7a94f8fac53ce827f93685b.pdf
    • https://static.usrfiles.com/ugd/b8c837_48d56d99f5db44099dd19650b14b9f03.pdf
    • https://static.usrfiles.com/ugd/b8c837_771bd48058614aebab9436fb5aa7caeb.pdf
    • https://static.usrfiles.com/ugd/b8c837_a8622664ef314cee864ad0e601194f1d.pdf
    • https://static.usrfiles.com/ugd/b8c837_57137dab6b5e4bcf8e4a879fcffdeab8.pdf
    • https://static.usrfiles.com/ugd/b8c837_e5a7f05264914bee8462b860f7916535.pdf
    • https://static.usrfiles.com/ugd/b8c837_382abbe480fc4d1691a043d002b1885d.pdf
    • https://static.usrfiles.com/ugd/b8c837_f0f6d74d10bc47bdb90ccbb503061549.pdf
    • https://static.usrfiles.com/ugd/b8c837_525f5dd310274f398134ed6ab187f92e.pdf
    • https://static.usrfiles.com/ugd/b8c837_fffc3add1a194ecb8ad92f23bd26b7d5.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_off00006231.bin
273e016dc96dd95710ab8f47fd4703398994e09c70bc0dd78f5a6fc7deb62c33		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6231 5028 bytes
font_01_sfnt_off00007330.bin
acbee20aa6cd151af89e8157f3c99fb1fa04ceb092ac652bd64e82c5ec5ed73c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7330 9904 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.