Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 03d25f99b30809ea…

MALICIOUS

Office (OLE) / .DOC

251.3 KB Created: 2020-09-17 19:06:00 Authoring application: Microsoft Office Word
MD5: e547916b46cccb0ebd42f16b8b743a79 SHA-1: ecaa9f3eaace71fc87470c5822cbdd8187ac2234 SHA-256: 03d25f99b30809ea158b778215811e2b6f77ce324adbf5ee133e0bddc5a5089a
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1140 Deobfuscate/Decode Files or Information

The sample contains VBA macros, specifically a Document_Open macro that utilizes CreateObject, indicating malicious intent. The ClamAV detection name 'Doc.Downloader.EmotetRed02226-9938639-0' strongly suggests the Emotet family and a downloader functionality. The VBA code is heavily obfuscated, but the presence of auto-execution and object creation points to the execution of a secondary payload.

Heuristics 6

  • ClamAV: Doc.Downloader.EmotetRed02226-9938639-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.EmotetRed02226-9938639-0
  • 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
f3e5512d27b8b9bc41f3042e7c20b3a4762b4069585ccb21c6a950e8fd05377a		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 21986 bytes

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