Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 9c0aa6a67f05f22e…

MALICIOUS

Office (OLE) / .DOC

200.0 KB Created: 2020-10-21 21:54:00 Authoring application: Microsoft Office Word
MD5: 8d97cb634731845c1848c12c7286e279 SHA-1: 4904d47c74183dfac981a3c416327856fedf6dc7 SHA-256: 9c0aa6a67f05f22e0bf2889fef6bb38dbbc89fa9da70a8b6ac6cfe0b45f3b704
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 a malicious VBA macro that is automatically executed upon opening the document, as indicated by the Document_Open and CreateObject firings. The ClamAV detection name 'Doc.Dropper.EmotetiBlueUpdate1020-9780531-0' strongly suggests this is an Emotet variant used for dropping further payloads. The obfuscated document body does not provide specific lures, but the macro's behavior is clear.

Heuristics 7

  • 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.
  • 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
6c391991df0deaab71158b56a42728fa6cc0fa0f9cdacd00457125ab6d1e3e9d		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 23148 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.

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