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

Static analysis result for SHA-256 bd0645f57df34996…

MALICIOUS

Office (OLE) / .DOC

79.0 KB Created: 2020-11-20 00:09:00 Authoring application: Microsoft Office Word
MD5: c37e333fffd1ccc08fa6120a52a7930a SHA-1: 006ece167f2727fc7bebb37a90dc14a2a6533bc5 SHA-256: bd0645f57df34996eff1bbf2f5b1f80806b5f85a63a48ad0a1001cbf7cae3f80
200 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1059.003 Windows Command Shell

The sample contains VBA macros, specifically an Auto_Close macro, that utilize the Shell() function and reference cmd.exe. This indicates the macro is designed to execute arbitrary commands on the host system. The embedded URL likely points to a second-stage payload. The document body was unreadable, but the macro behavior strongly suggests a downloader or dropper.

Heuristics 6

  • Shell() call in VBA critical OLE_VBA_SHELL
    Shell() call in VBA
  • Auto_Close macro high OLE_VBA_AUTOCLOSE
    Auto_Close macro
  • cmd.exe reference in VBA high OLE_VBA_CMD
    cmd.exe reference in VBA
  • VBA p-code auto-exec with execution tokens high OLE_VBA_PCODE_AUTOEXEC_EXEC
    Compiled VBA/cache stream contains an auto-execution token together with shell/download/object-execution tokens. This catches p-code-only or source-extraction-failure macro documents where visible source is unavailable.
  • 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
    • https://via.hypothes.is/boyama.medyanef.com/vendor/hamcrest/files/phy__1__31629__2649094674__1605642612.exe

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
fe4288e40e11eeeace5815961d744bb56ce59f8ae5e8dc5b959f051eca81d8e9		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 1175 bytes

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