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

Static analysis result for SHA-256 651691dcf8a659de…

MALICIOUS

Office (OLE) / .DOC

158.8 KB Created: 2020-09-22 07:35:00 Authoring application: Microsoft Office Word
MD5: d424c051545411ff5ba926ddf4006702 SHA-1: de6c8ab9be9c0c2bad18e67a4a8e732f6f3bd754 SHA-256: 651691dcf8a659de6cc317f73356040f9fe108f7afcfcf13f037cb8ca348f061
242 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, as indicated by the Document_Open and OLE_VBA_PCODE_AUTOEXEC_EXEC heuristics. The macro utilizes CreateObject and GetObject calls, suggesting it attempts to instantiate and interact with other objects, likely to download and execute a secondary payload. The ClamAV detection name 'Doc.Malware.Ewtz-9765424-0' further supports its malicious nature. The obfuscated nature of the VBA script prevents a more detailed analysis of its specific actions.

Heuristics 7

  • ClamAV: Doc.Malware.Ewtz-9765424-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Ewtz-9765424-0
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • GetObject call high OLE_VBA_GETOBJ
    GetObject 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
a112d95a2b3b8361e272604fc368010c1a607c2cd21f88c20a607d79b8ac6136
vba-macro oletools.olevba.extract_macros (decoded VBA source) 16742 bytes