Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 496ea95f7dd55936…

MALICIOUS

Office (OLE) / .DOC

164.8 KB Created: 2020-09-16 04:39:00 Authoring application: Microsoft Office Word
MD5: 16fb192508fa330cafdcfa5d1a23b0fb SHA-1: 7f38d60f95f0b7428374477921c0722674a80e0c SHA-256: 496ea95f7dd559363ca3b949aaaf3c4f291fe0c2fdb2eb85e8ec581df270e46b
240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

The file is identified as malicious by ClamAV with the signature 'Doc.Downloader.Emotet-9762285-0'. Static analysis reveals the presence of VBA macros, specifically a 'Document_Open' auto-exec macro that utilizes 'CreateObject'. This indicates the document is designed to execute code upon opening. The extracted artifact 'macros.bas' further supports the presence of VBA macros. The overall behavior points to a downloader, characteristic of the Emotet family, which typically executes a second-stage payload.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-9762285-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9762285-0
  • 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
4a292a51323e6fe23215e1f68558fe1f1593e61fbf1f40c638bdf8f7e9fd0e8f		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 25505 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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