Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 7861f1a13d086ee8…

MALICIOUS

Office (OLE) / .DOC

194.5 KB Created: 2020-09-24 14:59:00 Authoring application: Microsoft Office Word
MD5: 0ddb19b73a330b2f5c2d83d2a7721d57 SHA-1: 9fd3aa9d1ce5226d5c0b5cb951b944f5cb3c6f3e SHA-256: 7861f1a13d086ee872ad3efe64623ad877bce325dddf72b5fa18abeb9d04a8d1
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample is a malicious Office document containing VBA macros, specifically a Document_Open macro that uses CreateObject to execute code. The ClamAV detection explicitly identifies it as 'Doc.Downloader.Emotet-9765780-0'. The obfuscated VBA script likely attempts to download and execute a second-stage payload, potentially via PowerShell, as indicated by the heuristic firings and the presence of VBA code that appears to construct commands.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9765780-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9765780-0
  • 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
478e525c35da71173721eac25da86734da83f0768f80b277d373c9cc7716a5ba		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 27607 bytes

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