Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 e39f51c5e013f6d5…

MALICIOUS

Office (OLE) / .DOC

267.0 KB Created: 2019-02-15 14:25:00 Authoring application: Microsoft Office Word
MD5: a697c6d5283e9dd13107ead94f8a6c3e SHA-1: dc324f91ed72f511155dad15210961cb90aee8f2 SHA-256: e39f51c5e013f6d5b542b875f4a97ea58d2cfe71c0467c45c338a8692c10ae4e
260 Risk Score

Malware Insights

Emotet · confidence 95%

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

The file contains VBA macros, specifically a Document_Open macro that utilizes a Shell() call. This is a common technique for Emotet to download and execute a second-stage payload. The ClamAV detection name 'Doc.Downloader.Emotet-6858703-0' strongly suggests the Emotet family. The document body is heavily obfuscated and does not provide clear user-facing content, reinforcing the malicious intent via macro execution.

Heuristics 7

  • Shell() call in VBA critical OLE_VBA_SHELL
    Shell() call in VBA
  • ClamAV: Doc.Downloader.Emotet-6858703-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-6858703-0
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • 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://ns.adobe.com/xap/1.0/
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/photoshop/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/sType/ResourceRef#
    • http://ns.adobe.com/tiff/1.0/
    • http://ns.adobe.com/exif/1.0/
    • http://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
56add05d4ba1697087592ab66cd104929c25ed55a62f95803a4e0dee2abbba92		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 2418 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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