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

Static analysis result for SHA-256 0debea2deb612b9b…

MALICIOUS

Office (OLE) / .DOCX

176.3 KB Created: 2020-09-28 21:56:00 Authoring application: Microsoft Office Word
MD5: b24da38523175958685b06e49b1ac157 SHA-1: b7105d559f8ce7265dd75b7690b8efb55bdf9214 SHA-256: 0debea2deb612b9b45d6c0d5436d8a10523ab340be98ce9c66f2ff4bfba49eb2
202 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1140 Deobfuscate/Decode Files or Information

The sample contains VBA macros, including a Document_Open macro, which is a common technique for executing malicious code upon opening the document. The script uses CreateObject and appears to deobfuscate and execute further code, likely a second-stage payload. The presence of a Document_Open macro and the use of CreateObject strongly suggest a malicious intent, aligning with the 'Spearphishing Attachment' initial access vector.

Heuristics 6

  • ClamAV: Doc.Malware.Generic-9769001-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Generic-9769001-0
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • 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

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
fe19635e7383e285d173bce1f5bbd9867258f7974e3830e10aecb187a337391c		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 6691 bytes

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