Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 5c8c3202aaba0d3d…

MALICIOUS

Office (OLE) / .DOC

158.3 KB Created: 2020-09-17 04:18:00 Authoring application: Microsoft Office Word
MD5: 283a5dc960649d138fbc2306ea22706d SHA-1: 1910eb228ff1deea07d14feaf61aa4ac77864496 SHA-256: 5c8c3202aaba0d3de5f41754966346d40820d06e1eb2a1cb74a1cdadc3f47cc1
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1204.002 Malicious File

The sample is a Microsoft Office document with a high-confidence detection for VBA macros, specifically a Document_Open auto-execution macro. ClamAV identifies it as 'Doc.Downloader.Emotet-9762517-0', strongly suggesting Emotet family. The VBA code uses CreateObject and appears to be obfuscated, but the presence of a Document_Open macro indicates an attempt to execute code automatically when the document is opened, typical for downloading and executing a secondary payload.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9762517-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9762517-0
  • 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
991adc1ef45638c65bfb92a710fcbce350fe87d4c8d6f02dc16d9130cc12b6e6		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 20616 bytes

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