Emotet Office (OLE) / .DOCX malware analysis — malicious · e4a9024be2fd969f

MALICIOUS

Office (OLE) / .DOCX

166.5 KB Created: 2020-09-14 11:57:00 Authoring application: Microsoft Office Word

MD5: 8efc6ad8ed0dd25674c49d36c33523e1 SHA-1: a2ef06e8954b6d5dfe272dc56bf05e38a3740dc1 SHA-256: e4a9024be2fd969f3d64de3bcff992a2d29ad69e823b5ed145c96a395a013e19

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1059.003 Windows Command Shell T1105 Ingress Tool Transfer

The critical ClamAV detection and high-severity heuristics for VBA macros, specifically the Document_Open auto-execution and CreateObject calls, strongly indicate malicious intent. The extracted script content reveals a PowerShell command that downloads and executes a second-stage payload from a reconstructed URL, and also attempts to establish persistence by writing to the Run key HKCU\Software\Microsoft\Windows\CurrentVersion\Run\IAccessible2Proxy. This behavior is characteristic of Emotet.

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.

Filename	Kind	Source	Size
`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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