Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 7f975c35b98c82e1…

MALICIOUS

Office (OLE) / .DOCX

155.6 KB Created: 2020-12-30 13:16:00 Authoring application: Microsoft Office Word
MD5: c35a00b406718cd80b45e94bed08f1ff SHA-1: fee35650c83a8dd5f740c8537d47b272e371b9ce SHA-256: 7f975c35b98c82e158e6689e3a8d6c5da6a640ba0f279256f3c01927e7476fbb
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample contains a Document_Open VBA macro that executes obfuscated code. This code utilizes CreateObject to interact with the file system, attempting to create and write to specific file paths. The ClamAV detection name 'Doc.Downloader.EmotetRed02224-9938637-0' strongly suggests Emotet family involvement, which commonly uses macro-enabled documents to download further payloads.

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
56a4885fb35696e61eb89c4193c6dbd09786b2db28cac633c3290a9c612d3393		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 6670 bytes

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