Malicious PDF — malware analysis report

Static analysis result for SHA-256 b376706976893941…

MALICIOUS

PDF

35.6 KB Created: 2020-08-30 14:19:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6ab80c5aa0119528363e0be50ff06163 SHA-1: 3876c287b262be2a6454e33799cb9f7ec5cc8003 SHA-256: b3767069768939419aab897ef34561eff8ce83a7ba353e739549907152a4c169
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one critical heuristic firing indicating a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text related to 'double diamond deluxe slot machines' and a URL that appears to be part of a link farm designed to attract traffic. The primary malicious URL identified is https://ttraff.cc/wix?keyword=double+diamond+deluxe+slot+machines, which is likely used to redirect users to 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.cc/wix?keyword=double+diamond+deluxe+slot+machines
    • https://static.usrfiles.com/ugd/b8c837_4a3ae670a5fe4fddbc5ddde7e7f2dc8a.pdf
    • https://static.usrfiles.com/ugd/b8c837_72d4d373bbd24959b2e36528554b99ea.pdf
    • https://static.usrfiles.com/ugd/b5472a_caf8c2b40e51462996205ecb456ae117.pdf
    • https://cdn.shopify.com/s/files/1/0435/1574/0312/files/4497635839.pdf
    • https://cdn.shopify.com/s/files/1/0430/7773/0464/files/the_5th_wave_book_2.pdf
    • https://cdn.shopify.com/s/files/1/0459/9037/9679/files/47630207063.pdf
    • https://static.usrfiles.com/ugd/9421c8_80631a86167448e9b34595cd08493b15.pdf
    • https://static.usrfiles.com/ugd/b8c837_d875d13cd1e6451d9ac5728e0dbfcc71.pdf
    • https://static.usrfiles.com/ugd/b8c837_25d561201ff24dad8cd0009667353c79.pdf
    • https://cdn.shopify.com/s/files/1/0431/4021/9037/files/15766580787.pdf
    • https://cdn.shopify.com/s/files/1/0438/2969/0525/files/oxford_albanian_english_dictionary.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_off00004d3c.bin
8dac011b6a56755e31ae622024a83f0273641b7faa66b11de5d292bb1077d4de		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4D3C 5288 bytes
font_01_sfnt_off00005f12.bin
764e4f321d8a7a4bdc5dccbad61cfba0a1e8dc4f03aad1d39cdec173a491fc0b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F12 10208 bytes

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