Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 c760fe45f26d328d…

MALICIOUS

Office (OLE) / .DOCX

171.5 KB Created: 2020-10-27 18:11:00 Authoring application: Microsoft Office Word
MD5: f70a41d67692038f0b57533c3318c7d4 SHA-1: 0d3ee073d9d376343d7d8bf208f2c790a28ccdac SHA-256: c760fe45f26d328ded7cc3fac92ee701e551cfc11a4c2b0cbde98423f6097daf
240 Risk Score

Malware Insights

Emotet · confidence 95%

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

The file contains VBA macros, specifically a Document_Open auto-exec macro that uses CreateObject. This is a common technique for Emotet to download and execute a second-stage payload. The ClamAV detection explicitly names Emotet. The obfuscated document body text is not directly indicative of a specific lure, but the macro execution is the primary indicator of malicious intent.

Heuristics 7

  • ClamAV: Doc.Malware.Emotet-9784450-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9784450-1
  • 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
89a7392bd1c1f3fe3b1a4c5e97fc737fc9e550b299f3eb72f43817655c9c1c0c
vba-macro oletools.olevba.extract_macros (decoded VBA source) 16436 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.