Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 6f47752ab35a3a16…

MALICIOUS

Office (OLE) / .DOCX

180.0 KB Created: 2020-10-27 08:32:00 Authoring application: Microsoft Office Word
MD5: 0c9c7828934621d674e90721b55ed69c SHA-1: c2b40c60744afafd0171108f634ef5e056d30554 SHA-256: 6f47752ab35a3a16436092bcd097860b92bb7666bfa6093f191327bea545840c
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample is a Microsoft Office document containing VBA macros, specifically a Document_Open macro that utilizes CreateObject to execute code. The ClamAV detection identifies it as 'Doc.Downloader.Emotet-9784225-0', strongly suggesting Emotet family involvement. The VBA script is heavily obfuscated but appears to be designed to download and execute a second-stage payload, a common Emotet tactic. The presence of VBA macros and the downloader behavior points to a Spearphishing Attachment initial access vector.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9784225-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9784225-0
  • 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
baddc5814f280b1183f5ed27ce7fb5b9c59037bb5bb89b6abd277ce8e9a0cbe5		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 15918 bytes

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