Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 a190cc4bd4d39b25…

MALICIOUS

Office (OLE) / .DOC

176.2 KB Created: 2020-10-20 15:27:00 Authoring application: Microsoft Office Word
MD5: 6e743be8131926fc3e2f09b2788ce9cc SHA-1: 17334806725f4f0fc76b8b0afe1dcc6f3fb13ac6 SHA-256: a190cc4bd4d39b253f7e560cdf793dd829f74b0f816bbddc666525007a02412f
240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

The file is identified as malicious by ClamAV with the signature Doc.Malware.Emotet-9781039-0. Static analysis revealed a Document_Open VBA macro that uses CreateObject and p-code execution, indicating it's designed to run automatically upon opening. This strongly suggests a macro-based delivery mechanism for Emotet, a known banking trojan and downloader.

Heuristics 7

  • ClamAV: Doc.Malware.Emotet-9781039-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9781039-0
  • 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
4ae9206e4b66c21807f47ed3b7c5982ab29db0a36a53a5da071ac077a7c0588d
vba-macro oletools.olevba.extract_macros (decoded VBA source) 18780 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.