Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2e7243c2ce1c05a…

MALICIOUS

PDF

39.1 KB Created: 2020-09-09 00:18:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5a0b0938a55b574036f43f629ae76c7d SHA-1: 717c4a4878befc755034269d705af93461ee2cea SHA-256: d2e7243c2ce1c05a431e9bdeb6bcf53a5caf411be9c88a9a017abb6e7e6b6f32
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 links, with one identified as a malicious redirector. The heuristic firings indicate this is a PDF link farm designed to distribute malicious content. The presence of the URL https://ttraff.club/wix?keyword=chimera+jailbreak++pc suggests a potential lure related to 'chimera jailbreak'. No scripts were extracted, and the document body is heavily obfuscated, but the link farm structure is a clear indicator of malicious intent.

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.club/wix?keyword=chimera+jailbreak++pc
    • https://static.usrfiles.com/ugd/b8c837_caba378897434a4e9a4c7be3dabc2fbf.pdf
    • https://static.usrfiles.com/ugd/08fe48_40a42308ac6c4bb3b1cc938adfc50df0.pdf
    • https://static.usrfiles.com/ugd/ade4e6_5b47f07adb4a4ccb9dea490a17490254.pdf
    • https://static.usrfiles.com/ugd/b8c837_2a8d43fb5b1f4ea78bc5b0cdb0e68b95.pdf
    • https://static.usrfiles.com/ugd/4dd980_abe976e823f342929d512f30c0a7afbb.pdf
    • https://static.usrfiles.com/ugd/c0fca2_5a379e31a97649baad9e76af5410272b.pdf
    • https://cdn.shopify.com/s/files/1/0431/0633/6925/files/kamalelovan.pdf
    • https://cdn.shopify.com/s/files/1/0436/7699/1653/files/11311945807.pdf
    • https://cdn.shopify.com/s/files/1/0429/5213/0716/files/ropugidelojefiwijajivosaf.pdf
    • https://cdn.shopify.com/s/files/1/0432/3000/3367/files/lubuzegizinifiwurowa.pdf
    • https://static.usrfiles.com/ugd/74e905_2ec0d2f5fd00494990a1922a6dcc7a37.pdf
    • https://static.usrfiles.com/ugd/ce5d00_ba6ba6ca6a7f4f4dab84157d5b9d25f0.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_off00005bc4.bin
575b414589c8a2034dabc951c62adcdc4d043bca37e12f96cc074a3319816f61		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5BC4 5180 bytes
font_01_sfnt_off00006d2f.bin
f633db7f9f7daf90601f19c385b5a07b8ad914cbe598a93ed3b147b9f4905ba2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D2F 10192 bytes

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