Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc2b628e5dc7d7e6…

MALICIOUS

PDF

43.6 KB Created: 2020-08-31 08:06:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 55c423447bd0ad04f738d9e086b0044d SHA-1: a040e17dcf328df5e46f6bbe686ba8f0652d0fae SHA-256: fc2b628e5dc7d7e6b015be0cbeac07ee8946918cbf0b30772d00aa551f9e1d29
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/wix?keyword=finding+slope+of+a+line+worksheet+pd'. This URL is likely used to redirect the user to a malicious site. The document also contains a PDF link farm heuristic, indicating an attempt to generate traffic or distribute content through numerous links. The document body, though heavily obfuscated, contains the same URL, reinforcing its 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.cc/wix?keyword=finding+slope+of+a+line+worksheet+pd
    • https://static.usrfiles.com/ugd/55cc32_71dc25e8705a41a7a00530732e212338.pdf
    • https://static.usrfiles.com/ugd/b8c837_c1a25227efe24efa84f4228e272ced14.pdf
    • https://static.usrfiles.com/ugd/105a8c_141a8aee9c5742289bb6cae176fe0067.pdf
    • https://static.usrfiles.com/ugd/b8c837_c1bd7c004d6543a693bc30cdc514d5fb.pdf
    • https://static.usrfiles.com/ugd/909b15_998b3400d35b4b6b897831ffb3069ca3.pdf
    • https://static.usrfiles.com/ugd/5bb01c_400b334388e641229dc5a8cd1f4294e1.pdf
    • https://static.usrfiles.com/ugd/906e9f_21c6c6080b844124b8ab7dcb014cf1d3.pdf
    • https://static.usrfiles.com/ugd/b8c837_5f0e8922dfd942efa2013882555d4d27.pdf
    • https://static.usrfiles.com/ugd/0d089b_895440e76f624cd8834a2e8c5bb3e485.pdf
    • https://static.usrfiles.com/ugd/b8c837_6821137c406144e4a16a979c4c63d974.pdf
    • https://cdn.shopify.com/s/files/1/0431/1370/9730/files/guidelines_for_wic_in_ky.pdf
    • https://cdn.shopify.com/s/files/1/0440/1473/1429/files/79875123760.pdf
    • https://cdn.shopify.com/s/files/1/0439/0027/2792/files/convertir_un_a_word_trackid_sp_006.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_off00005e6d.bin
9def56dacc1d8754d53495dcdf095b6e7512e9fc00893e7210988bc836a7d1da		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E6D 5200 bytes
font_01_sfnt_off00007025.bin
0fd7f6e779d9e88a2e479616ae5218a2f2cab31b6a20ee683fd15356e8c37726		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7025 9876 bytes
font_02_sfnt_off000091a3.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0x91A3 4324 bytes

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