Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3ea226425ea53fe…

MALICIOUS

PDF

38.9 KB Created: 2020-09-02 01:41:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e11b59e6dda78f962ce8abf0a9337a84 SHA-1: 652474c75b0565a150a66d46944ad8a9bd689d24 SHA-256: d3ea226425ea53fea720598004effac11cf45d41611bf84db860d99154652988
162 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious Link T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains multiple embedded links, with one identified as a malicious redirector. The document also instructs the user to disable security software, a common tactic to facilitate further malicious activity. The presence of numerous external links suggests an attempt to create a link farm for SEO manipulation or to distribute further payloads.

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.
  • Security software disable instruction high SE_SECURITY_BYPASS
    Document instructs the user to disable antivirus or security software — unusual for ordinary documents and high-risk in an unsolicited file
  • 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=cheat+engine+6.+5.+1
    • https://cdn.shopify.com/s/files/1/0430/4669/9165/files/rejinawonoxiwanavi.pdf
    • https://cdn.shopify.com/s/files/1/0431/6499/1649/files/warhammer_40000_codex_8th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0430/3847/4397/files/29419342121.pdf
    • https://static.usrfiles.com/ugd/b8c837_1c31558bff1c4664b5282cef82c857d9.pdf
    • https://static.usrfiles.com/ugd/5a4aad_63b128bc2c6e468cb117d49c268bfe36.pdf
    • https://static.usrfiles.com/ugd/9734e7_c0a36d51c0c546baa29364e66f45e806.pdf
    • https://static.usrfiles.com/ugd/805d2a_3455d15186744665945fa83460461540.pdf
    • https://static.usrfiles.com/ugd/b8c837_b2bdaabe6eac49cabe9427dcaf520c74.pdf
    • https://static.usrfiles.com/ugd/6f53d7_c41474775a114627a319639abb3b62a5.pdf
    • https://static.usrfiles.com/ugd/4b874d_2ddececcfd224d8cbffa1afab7ea0537.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_off00005b1d.bin
52724a5c7b6cd1e5cab6f068a27fb169c9094fdf57a35701f626168071ac7f31		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B1D 4908 bytes
font_01_sfnt_off00006bde.bin
22beee541f026f74d8c3794730663f10df9ca0e9ae4e04ae55cb04437c4d580f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BDE 10356 bytes

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