Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 523e8012f4349279…

MALICIOUS

Office (OLE) / .DOC

176.9 KB Created: 2020-10-21 04:38:00 Authoring application: Microsoft Office Word
MD5: fe5c390277751856968b6a0c103098e8 SHA-1: 04ce33c382536c2fc6f3971d163a1f0f43b4a9cf SHA-256: 523e8012f43492795f145eba0a1394058d80a87402affe888c4a9e69f68c373d
240 Risk Score

Malware Insights

Emotet · confidence 95%

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

The critical ClamAV detection and high-severity heuristics for OLE_VBA_DOCOPEN, OLE_VBA_CREATEOBJ, and OLE_VBA_PCODE_AUTOEXEC_EXEC strongly indicate malicious VBA macro execution. The presence of a Document_Open macro and CreateObject calls suggests the macro is designed to run automatically and likely download a secondary payload, consistent with Emotet's behavior. The embedded URL, though benign, was part of the document's structure.

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
7f8cff52bb4ded49086d2df7b9cfebe2d016b73a3b091a757ad1794acb80249c
vba-macro oletools.olevba.extract_macros (decoded VBA source) 18885 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.