Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 ddde3a0ed8397a59…

MALICIOUS

Office (OLE) / .DOC

242.8 KB Created: 2020-09-17 23:22:00 Authoring application: Microsoft Office Word
MD5: 653e17653ecdf37ca22348d4aa2d1671 SHA-1: 204a8756c1fa9bb083d2dcb16ab8bc1c87f5c2e5 SHA-256: ddde3a0ed8397a59dfd54eae208edee8db83211d0fdd31672f0544bda85022db
240 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample is a malicious Microsoft Word document containing VBA macros. The 'Document_Open' macro is configured to execute automatically, and a 'CreateObject' call indicates the execution of arbitrary code. ClamAV identifies this as 'Doc.Downloader.EmotetRed02226-9938639-0', a known Emotet variant. The primary function of the macro appears to be downloading and executing a second-stage payload.

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
bbb069e7ba4108064d6782bf06897cd403c434c793526e3567eb29507661c241		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 21939 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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