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

Static analysis result for SHA-256 aeb8be66fd6712a7…

MALICIOUS

Office (OLE) / .DOC

586.5 KB Created: 2022-02-07 08:39:00 Authoring application: Microsoft Office Word
MD5: 53540ec4d2a92e3a70b36ff4fcf8196b SHA-1: ba9a5658148c7d708ed20110cb3eb3df184b9b4a SHA-256: aeb8be66fd6712a7edc803874b42382fcb48cd6ee2122b7249a0dff56f802458
62 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The sample contains a VBA macro that executes upon opening the document. This macro, specifically the Document_Open subroutine, attempts to create a directory if it doesn't exist and then opens a password-protected document. The macro reconstructs the URL 'https://kukumar1s.ru/' by concatenating string literals. This indicates a likely attempt to lure the user into opening a malicious document, potentially for credential harvesting or further malware delivery.

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
6b5c1ee22f7e3179b00a2f7fc16299b597afa3cf93f9808506dec474f2d0e7aa		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 1244 bytes

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