Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 b326ca234be3b2d2…

MALICIOUS

Office (OLE) / .DOCX

161.5 KB Created: 2020-09-24 23:07:00 Authoring application: Microsoft Office Word
MD5: 0a2ff822aa609434c892ab0747353727 SHA-1: 1a1d2d387a752a80e0628b7b902fc243e6bd7df7 SHA-256: b326ca234be3b2d276d14c6d4d6e382a782bb6f7e04d4943dbd1f8f66da7df9f
240 Risk Score

Malware Insights

Emotet · confidence 95%

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

The critical ClamAV detection and high-severity heuristics indicate this is a malicious document. The presence of a Document_Open VBA macro that uses CreateObject, combined with the 'macros.bas' artifact, strongly suggests the execution of malicious code. The document body contains obfuscated strings that appear to be part of a PowerShell command, likely intended to download and execute a second-stage payload. The Emotet family is known for this type of delivery mechanism.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-9765780-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9765780-0
  • 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.
  • Suspicious extracted artifact high EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
  • 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
822ca2bb5afccdd585dd9d4b3c04999cc0b411b7c4b99b6e373f1239fc1c4ef1		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 26832 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.

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