Malicious Office (OLE) / .DOCX — malware analysis report

Static analysis result for SHA-256 7835d1379c188fc7…

MALICIOUS

Office (OLE) / .DOCX

653.0 KB Created: 2021-12-01 09:33:00 Authoring application: Microsoft Office Word
MD5: 4026663c0a2c5229149f55b558db7143 SHA-1: dd07abd964153947143cb0dcc1d4e14d5b178c05 SHA-256: 7835d1379c188fc7cc1d4948ca1b175fab9558564ecc32eca0ea4340e8959cc1
62 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1204.002 Malicious File

The sample is a Word document containing VBA macros. The Document_Open macro is triggered upon opening the document. This macro constructs a URL 'http://frolol0.ru/' and then attempts to open a password-protected document named 'help.doc' from this URL. The macro's intent is to download and open a secondary malicious document. The benign URLs extracted are part of the document's schema and not malicious.

Heuristics 3

  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • VBA macros detected medium OLE_VBA_MACROS
    Document contains VBA macro code
  • 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 http://schemas.openxmlformats.org/drawingml/2006/main
    • http://schemas.openxmlformats.org/officeDocument/2006/bibliography
    • http://schemas.openxmlformats.org/officeDocument/2006/customXml

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
de2a0757bab351094e075eb5e30f8d4b615b5358a3d3b8cdb7f62a1859cd5d5d		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 753 bytes

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