Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8cd6ec7d559a438…

MALICIOUS

PDF

48.4 KB Created: 2020-08-30 03:01:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 65ee70b35a7045f9aa7a0be313839a2c SHA-1: 7250c93d4cc2c7b6d54c0e53f0d660db2bc1ca26 SHA-256: e8cd6ec7d559a4386f788e70a03a782343bfe43d349d0a8e817d688bf6837333
128 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link and a large number of external PDF links, suggesting a link farm designed to lure users to malicious sites. The presence of a 'download button' lure further supports this. The primary malicious URL identified is https://ttraff.club/wix?keyword=evaluation+groupe+nominal+ce2, which is flagged as a known malicious redirector.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=evaluation+groupe+nominal+ce2
    • https://static.usrfiles.com/ugd/83f04e_d0d9aba13d394479bd90e872c5b31be0.pdf
    • https://static.usrfiles.com/ugd/e2f7e1_ceab4b7e99e74c61836a8603131821e1.pdf
    • https://static.usrfiles.com/ugd/b8c837_46dc87ecc9b048e3a764ab1bcb320ec0.pdf
    • https://static.usrfiles.com/ugd/2e4eb4_e40cb35f9a06460aa138cfdb3b65c1ae.pdf
    • https://static.usrfiles.com/ugd/b8c837_1cad664b32c740599c559bfef1fdb2b9.pdf
    • https://cdn.shopify.com/s/files/1/0428/8335/0687/files/51694528923.pdf
    • https://static.usrfiles.com/ugd/b8c837_f4e04f21505544158beec3e0f7d96925.pdf
    • https://static.usrfiles.com/ugd/b8c837_f4afea57049f47549d6eebe7b958a90e.pdf
    • https://static.usrfiles.com/ugd/b8c837_0f2ad387e20a47299e5a29df560e34c8.pdf
    • https://static.usrfiles.com/ugd/760101_7472442c74424ea8be538317ddad1f07.pdf
    • https://static.usrfiles.com/ugd/fb83f1_6bbb4fad8a6044569d62204649680689.pdf
    • https://static.usrfiles.com/ugd/0adedf_b10a4ca1de8c402fb159e967a177b659.pdf
    • https://static.usrfiles.com/ugd/b8c837_db43475c013b4a038cbe994afa5ee37f.pdf
    • https://static.usrfiles.com/ugd/b8c837_fa3f79f315344e1b9542d8b04c15f966.pdf
    • https://static.usrfiles.com/ugd/b8c837_c9cfdad9411f46a3af873fc3decc710c.pdf
    • https://static.usrfiles.com/ugd/b8c837_44a1880fd20142babd4d7fba13e2c0b5.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_off00006874.bin
1d69c499ad566c7a2386a3f7e77cf299e7b9d002c5329fc7da0063b073c65c45
pdf-font-stream PDF embedded font (sfnt) at offset 0x6874 5224 bytes
font_01_sfnt_off00007a2d.bin
0076e3d12fa24911173809c1d257cfcf733fc15f433c01ea40f82f7ab24d81d1
pdf-font-stream PDF embedded font (sfnt) at offset 0x7A2D 10200 bytes
font_02_sfnt_off00009d1f.bin
9c39c1158d0616e6fc6aa53cba716dbb400f25a2d192da73d87d6bfe69aed4d0
pdf-font-stream PDF embedded font (sfnt) at offset 0x9D1F 16776 bytes