Emotet — Office (OLE) malware analysis

Static analysis result for SHA-256 12bab34ccc85de74…

MALICIOUS

Office (OLE)

156.1 KB Created: 2020-09-14 22:30:00 Authoring application: Microsoft Office Word
MD5: 3cbbf6332d11855243e4e2dab040538a SHA-1: 9f5b112aaa6a3291ded90fb4956cf776c1d3a676 SHA-256: 12bab34ccc85de745615b8fa63ae9ca1bbfb45b5e73b18b800096f827d024c49
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample contains VBA macros, specifically a Document_Open macro that utilizes CreateObject, indicating malicious intent. ClamAV detection explicitly identifies it as Emotet. The VBA code appears to be obfuscated, but the presence of a Document_Open macro and the CreateObject call strongly suggest it's designed to download and execute a secondary payload, a common Emotet tactic. The URL http://schemas.openxmlformats.org/drawingml/2006/main was confirmed as benign and is not included as an IOC.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9762395-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9762395-0
  • 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
52e73c091f55432254cc001aa79ef5320e8222785e35361d8b9c34d1d7c1b011		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 18535 bytes

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