Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 801d2ae370c4e963…

MALICIOUS

Office (OLE) / .DOCX

189.5 KB Created: 2020-10-21 20:47:00 Authoring application: Microsoft Office Word
MD5: 91e2befbc000928f0b31c2ad6644af94 SHA-1: 64b5a6562dfe55f9bd13836a846aaedac94015d6 SHA-256: 801d2ae370c4e9631b5740affb87d1628701bd436a299ea95ecc2df89a18e164
240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File T1105 Ingress Tool Transfer

The file contains a high-severity 'Document_Open' VBA macro that utilizes 'CreateObject' to execute code. This is further supported by a critical ClamAV detection for 'Doc.Dropper.EmotetiBlueUpdate1020-9780531-0', indicating a dropper functionality. The macro likely downloads and executes a second-stage payload, a common characteristic of Emotet. The embedded URL, though benign, is noted.

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
de68eb219c86c839b194b174abd2b170f818ab76547e269289797596310c601e		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 23214 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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