Emotet Office (OLE) / .DOCX malware analysis — malicious · c9167679e64cc007

MALICIOUS

Office (OLE) / .DOCX

204.7 KB Created: 2020-12-22 12:31:00 Authoring application: Microsoft Office Word

MD5: 6344ab3c5aeec42fc37cf8c5338e10cd SHA-1: e3c5860f41ca604ca2a21d948f17a838b3c744f3 SHA-256: c9167679e64cc007f5f7c42c046c9a36b51f62709a3e5b5350fed1fb8ce7dae9

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 heuristic and high-severity VBA heuristics indicate this DOCX file contains malicious macros. Specifically, the 'Document_Open' macro and 'CreateObject' calls suggest an attempt to automatically execute code upon opening. The ClamAV detection name 'Doc.Downloader.Emotet' strongly suggests the Emotet family. The embedded VBA code likely downloads and executes a second-stage payload, a common Emotet delivery technique.

Heuristics 7

ClamAV: Doc.Downloader.Emotet-10024800-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-10024800-0
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.

Filename	Kind	Source	Size
`macros.bas` `b223e36ca03f3aef1de34ece9213428b8c399a8d27f7650232938837efe41a69`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	16333 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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