Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 d13b82cb72b63621…

MALICIOUS

Office (OLE) / .DOCX

242.7 KB Created: 2020-09-17 06:16:00 Authoring application: Microsoft Office Word
MD5: afb1ca520109862e9f4dfa0c580cf7cc SHA-1: c77d1820b106e3829db299aeedebac8d5d8bca5d SHA-256: d13b82cb72b636213f7c77bfcea345f6cab24b0a14dcfb4cfdf54c8075ccb0de
240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

The file is identified as malicious by ClamAV with the signature 'Doc.Downloader.EmotetRed02226-9938639-0', strongly suggesting it belongs to the Emotet family. Static analysis detected VBA macros, specifically a Document_Open macro that uses CreateObject, indicating an auto-execution mechanism. This macro is likely responsible for downloading and executing a second-stage payload, a common Emotet behavior.

Heuristics 7

  • ClamAV: Doc.Downloader.EmotetRed02226-9938639-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.EmotetRed02226-9938639-0
  • 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
8acac38431121e2787bcaf089ea6ff777ea901603bfdc5971f7059437b41c745		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 20564 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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