Emotet Office (OLE) / .DOCX malware analysis — malicious · 3c881e9db07a42e2

MALICIOUS

Office (OLE) / .DOCX

167.9 KB Created: 2021-01-05 17:50:00 Authoring application: Microsoft Office Word

MD5: ed88a604ad61f329b7e21ea3a9190959 SHA-1: 68f799501fc069f3891de45ed9ac2f90f95b46f7 SHA-256: 3c881e9db07a42e23408d2e8a96c65feec2857b04256e4e9c2a6a9789994258c

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 sample contains a VBA macro that is automatically executed upon opening the document, as indicated by the 'Document_Open' and 'OLE_VBA_PCODE_AUTOEXEC_EXEC' heuristics. This macro likely uses 'CreateObject' to download and execute a second-stage payload, a common technique for Emotet. The ClamAV detection name further supports the Emotet family attribution.

Heuristics 7

ClamAV: Doc.Downloader.EmotetRed02224-9938637-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.EmotetRed02224-9938637-0
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` `4ad47f06387c2fe26b40af7c5c3febabd490580f16728c81acf291150b2fb0bb`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	10757 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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