Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 8aa0b4c333b26108…

MALICIOUS

Office (OLE) / .DOC

242.9 KB Created: 2020-09-17 23:22:00 Authoring application: Microsoft Office Word
MD5: de7ce52bcf9fe093261630d24ed616b3 SHA-1: 66b1720c97828e2acbf3083925b5b980f1d7c028 SHA-256: 8aa0b4c333b26108cf1f7faacf29437fe586f39c8bce218ff8c8ba1ecaa433b9
240 Risk Score

Malware Insights

Emotet · confidence 95%

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

The critical ClamAV detection and high-severity heuristics for VBA macros, including `Document_Open` auto-execution and `CreateObject` calls, strongly indicate malicious intent. The presence of a `macros.bas` file further supports this. The ClamAV signature suggests this is an Emotet downloader variant. The VBA macros likely execute code to download and run 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.