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

Static analysis result for SHA-256 9c49c261ffce3c7e…

MALICIOUS

Office (OLE) / .DOC

69.2 KB
MD5: 98909ab5e8bf0da9f4658bd891b71175 SHA-1: 72cd6eaca19d5aab7798c68fdf4ebd4e033990ce SHA-256: 9c49c261ffce3c7e109564c981f9cec0aad4b7abc7bba60d9ea72ca5bb824d14
162 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic for Applications T1059.001 PowerShell T1204.002 Malicious File

The critical OLE_VBA_SHELL heuristic firing indicates the use of the Shell() function within the VBA macros. The Document_Open macro is designed to execute a HTA file located at 'c:\programdata\variableCompsFunc.hta' using the 'cmd /c' command. This suggests the macro's primary purpose is to download and execute a second-stage payload, likely a HTA file, which is a common technique for initial access.

Heuristics 5

  • Shell() call in VBA critical OLE_VBA_SHELL
    Shell() call in VBA
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • Suspicious extracted artifact high EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
  • 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.microsoft.com/aml/2001/core
    • http://schemas.microsoft.com/office/word/2010/wordprocessingCanvas
    • http://schemas.microsoft.com/office/drawing/2014/chartex
    • http://schemas.microsoft.com/office/drawing/2015/9/8/chartex
    • http://schemas.openxmlformats.org/markup-compatibility/2006
    • http://schemas.microsoft.com/office/word/2003/wordml
    • http://schemas.microsoft.com/office/word/2003/auxHint
    • http://schemas.microsoft.com/office/word/2006/wordml
    • http://schemas.microsoft.com/office/word/2003/wordml/sp2
    • http://schemas.microsoft.com/schemaLibrary/2003/core

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
32398685d7262232e1412d6ec4f26c7c8f1b3391ba1ea7b6766bb6d27e1b4654		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 1049 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.

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