Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 7232bb05a7e765ec…

MALICIOUS

Office (OLE) / .DOCX

157.6 KB Created: 2021-01-12 22:19:00 Authoring application: Microsoft Office Word
MD5: 88142d108e74217ad8e854516f5758de SHA-1: 633d67731e14dcf8dd632252c2cc2659aa1f9b04 SHA-256: 7232bb05a7e765ec62dfdf1dbf29a4a6260d804c9850305969e4363e10215734
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, which is a common technique for Emotet. The ClamAV detection name 'Doc.Downloader.EmotetRed02224-9938637-0' strongly suggests Emotet family and a downloader functionality. The VBA code is heavily obfuscated but the presence of CreateObject and the auto-execution of the Document_open macro indicate it's designed to run malicious code, likely to download and execute a further payload.

Heuristics 6

  • ClamAV: Doc.Downloader.EmotetRed02224-9938637-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.EmotetRed02224-9938637-0
  • 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
f080f423f3af32bf8c04d24f919af2345f2f15905193e2101e5f7b51599e8466		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 7512 bytes

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