Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 dcf292651785e92d…

MALICIOUS

Office (OLE) / .DOCX

160.5 KB Created: 2020-09-24 14:59:00 Authoring application: Microsoft Office Word
MD5: 0fa435232845b2f5f174d44d6654b062 SHA-1: 804c8a3433c5da879743840920f21607758df0c7 SHA-256: dcf292651785e92dd7dade637c73c2253b38a94b3a3f9668c21676f6a38a74e3
240 Risk Score

Malware Insights

Emotet · confidence 95%

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

The critical ClamAV detection and high-severity heuristics for OLE_VBA_MACROS, OLE_VBA_DOCOPEN, OLE_VBA_CREATEOBJ, and OLE_VBA_PCODE_AUTOEXEC_EXEC strongly indicate malicious VBA macro activity. The presence of a Document_Open macro that uses CreateObject suggests the execution of arbitrary code. The ClamAV signature specifically names this as Emotet. The document body, though heavily obfuscated, appears to contain encoded strings that likely form a PowerShell command, which is a common delivery mechanism for Emotet to download and execute further stages.

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
478e525c35da71173721eac25da86734da83f0768f80b277d373c9cc7716a5ba
vba-macro oletools.olevba.extract_macros (decoded VBA source) 27607 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.