Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 b285a4eb97b84d68…

MALICIOUS

Office (OLE) / .DOCX

155.4 KB Created: 2020-10-16 10:17:00 Authoring application: Microsoft Office Word
MD5: f309f3e419a069dabdbc4d19f8b41b1a SHA-1: c6923f6c18420b86969fd81501584a23094ca916 SHA-256: b285a4eb97b84d68240929ecbe902577a607c7e7b0abe299ef3ff2a6fa3e9eb7
240 Risk Score

Malware Insights

Emotet · confidence 95%

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

The file contains VBA macros, specifically a Document_Open macro that utilizes CreateObject, indicating an auto-execution attempt. ClamAV detection explicitly identifies it as 'Doc.Downloader.Emotet-9778520-0'. The presence of VBA macros and the Emotet family attribution strongly suggest the document's purpose is to download and execute a second-stage payload.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-9778520-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9778520-0
  • 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
d61826c134f7c008e59a413c892ffd79c11195763d747a6092f6a3ad25ed6af3
vba-macro oletools.olevba.extract_macros (decoded VBA source) 15346 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.