Emotet Office (OLE) / .DOCX malware analysis — malicious · 95d144a3f878347c

MALICIOUS

Office (OLE) / .DOCX

197.3 KB Created: 2019-11-19 22:01:00 Authoring application: Microsoft Office Word

MD5: 344623480a742224558b38f5619a4614 SHA-1: 9e94806d910922eb0e6eb833a6591116dadd825d SHA-256: 95d144a3f878347c96562af564fa54bba59e451845aec4ec328b342564917e4c

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

The sample is identified as malicious by ClamAV with the signature Doc.Dropper.Emotet-7401142-0, strongly indicating the Emotet family. Static analysis reveals the presence of VBA macros, specifically an AutoOpen macro that utilizes CreateObject for execution. This suggests the macro is designed to download and execute a second-stage payload. The extracted artifact 'macros.bas' is the source of this malicious VBA code.

Heuristics 7

ClamAV: Doc.Dropper.Emotet-7401142-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Dropper.Emotet-7401142-0
AutoOpen macro high OLE_VBA_AUTOOPEN

AutoOpen 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` `36bd3481f2e06b8221f116e9ded7beb125cc8efa98bce897751a42198dfdefea`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	19036 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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