Emotet — Office (OLE) malware analysis

Static analysis result for SHA-256 5f7b7c814f7a8a5f…

MALICIOUS

Office (OLE)

131.8 KB Created: 2020-10-14 22:05:00 Authoring application: Microsoft Office Word
MD5: 0f4e9d570edaf8e6f4413666890d773b SHA-1: fdd6853234c4f7208a372a0bed5994d79ffe993d SHA-256: 5f7b7c814f7a8a5f4c518851b0abe8c74b82f991817e22ac23e1d7cb2610787b
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample contains VBA macros, including a Document_Open macro that uses CreateObject, indicating malicious intent. The ClamAV detection explicitly names Emotet, and the macro's functionality suggests it's designed to download and execute a second-stage payload. The presence of VBA macros and the nature of the detected threat strongly point to a phishing attachment delivery method.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9777973-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9777973-1
  • 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
9296410b78ac92b55714bdfa954afbb0bd00efb2266f225f69af6657d47bd2de		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 9460 bytes

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