Emotet — Office (OLE) malware analysis

Static analysis result for SHA-256 cc331c73e99edfad…

MALICIOUS

Office (OLE)

149.9 KB Created: 2019-05-31 15:27:00 Authoring application: Microsoft Office Word
MD5: fd3a7b2ac505a6e5510f43392c047024 SHA-1: 9b2857084f083a4a34cd96769c4761c50b76b996 SHA-256: cc331c73e99edfadedb48408fe1d7135bb2be8c2693dfb19937959cfee37ff50
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1105 Ingress Tool Transfer

The sample contains VBA macros, specifically an AutoOpen macro, which is a common characteristic of Emotet. The macros utilize CreateObject to likely download and execute a second-stage payload. The ClamAV detection also explicitly identifies it as Emotet.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-10001946-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-10001946-0
  • AutoOpen macro high OLE_VBA_AUTOOPEN
    AutoOpen 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
b98fa0df78cbb82486faf87711bff2663908488e20122901a4b198529db70aff		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 17148 bytes

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