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

Static analysis result for SHA-256 796be37278626723…

MALICIOUS

Office (OLE) / .DOC

166.9 KB Created: 2020-09-14 11:57:00 Authoring application: Microsoft Office Word
MD5: 6e4ebbdf1378f1b059acf098409c325e SHA-1: f5005d3eddeb4dab747239b6dbacef32ec2481b7 SHA-256: 796be372786267239ea478d2b4acb8c5c1f6b4fb8e6f31a3a104bb12f29705fd
202 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The sample is a malicious OLE document containing VBA macros, specifically a Document_Open macro that uses CreateObject to execute code. The ClamAV detection and heuristic firings strongly indicate a malicious document, likely Emotet. The VBA script appears to be heavily obfuscated, but the presence of 'powershell -e' suggests it attempts to execute a PowerShell command, likely to download and execute a second-stage payload.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9762269-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9762269-0
  • 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
8a39fc8d6eec119bccb9074c742cbab236c89f429d1a306c2818d1568d873603		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 25223 bytes

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