Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 6a2dcc9f854b78ee…

MALICIOUS

Office (OLE) / .DOC

189.5 KB Created: 2020-10-21 08:44:00 Authoring application: Microsoft Office Word
MD5: d7b98816d33ff3b792af57567c695715 SHA-1: 721bb8810918fa68b1b16aea29b5d4334018bba4 SHA-256: 6a2dcc9f854b78ee36aa1f7ad8ea583b30c78aae9a9ddc5d77c1bd559ee757a6
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample is a malicious OLE document containing VBA macros, specifically a Document_Open macro that uses CreateObject to execute code. ClamAV identifies it as 'Doc.Dropper.EmotetBlueUpdate1020-9780531-0', strongly suggesting an Emotet family dropper. The VBA code is heavily obfuscated but the presence of auto-execution and CreateObject indicates it's designed to download and run a secondary payload.

Heuristics 6

  • ClamAV: Doc.Dropper.EmotetiBlueUpdate1020-9780531-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Dropper.EmotetiBlueUpdate1020-9780531-0
  • 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
1495f7c7ced0d5d67a50de030db1d404fcece38568f93b06e33d3100a17ee340		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 20761 bytes

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