Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 6ca66bb2a18b0b27…

MALICIOUS

Office (OLE) / .DOC

170.4 KB Created: 2020-09-16 21:06:00 Authoring application: Microsoft Office Word
MD5: 8a951a07dd2e67bbff36b8ff9dd9f8e1 SHA-1: 1400ea356687312b99bcb8d799123fac0ec67584 SHA-256: 6ca66bb2a18b0b27d6f714ce2099b199103b2b56c28a5c1036db6ef08b2e7ae2
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample is a malicious DOC file containing VBA macros, specifically a Document_Open macro that executes obfuscated code. ClamAV identifies it as 'Doc.Downloader.Emotet-9762248-0', strongly suggesting Emotet family. The macro's use of CreateObject and p-code auto-execution indicates it's designed to download and run a secondary payload, a common Emotet tactic.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9762248-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9762248-0
  • 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.
  • 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
399b09c8d74ca70c14382a3c60b3f313640ed0e229ce8a9c8a5d7036140d7260
vba-macro oletools.olevba.extract_macros (decoded VBA source) 19085 bytes