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

Static analysis result for SHA-256 6e10a01cd9dec093…

MALICIOUS

Office (OLE) / .DOCX

153.9 KB Created: 2020-09-14 22:09:00 Authoring application: Microsoft Office Word
MD5: b821d4b3629c22776fd6752601e733d9 SHA-1: 217e6c9a81821bfe710509a48959f8ff86054c99 SHA-256: 6e10a01cd9dec093dcf1eb9caa2d4a8209d2d6059899c938b397b75bf04efffa
202 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The sample is a Microsoft Office document containing VBA macros, specifically a Document_Open macro that uses CreateObject. This indicates an attempt to execute code when the document is opened. While the exact payload is not directly visible due to obfuscation and truncation, the presence of macros and the 'CreateObject' call strongly suggest a downloader or dropper functionality. The ClamAV heuristic also confirms its malicious nature.

Heuristics 6

  • ClamAV: Doc.Malware.Generic-9760527-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Generic-9760527-0
  • 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
bf2dc6e4793502154f28a14458af4f5198ccc48932a5641a4c34f7f1fcdc0c82
vba-macro oletools.olevba.extract_macros (decoded VBA source) 18582 bytes