Emotet Office (OLE) / .DOCX malware analysis — malicious · b4acf83a8968349e

MALICIOUS

Office (OLE) / .DOCX

193.5 KB Created: 2020-10-27 23:09:00 Authoring application: Microsoft Office Word

MD5: 073391498d6c26bf7f9344bb6166f4f9 SHA-1: 8ffdf80a063561613eec2a73350eb7a1fb724975 SHA-256: b4acf83a8968349eaf443193aed741145adf825fd3a047ad47668fb7aadf837c

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1059.001 PowerShell T1566.001 Spearphishing Attachment

The file contains a VBA macro that is automatically executed upon opening, as indicated by the Document_Open and OLE_VBA_PCODE_AUTOEXEC_EXEC heuristics. The presence of CreateObject calls suggests the macro is designed to interact with the system or download additional content. ClamAV detection as 'Doc.Malware.Emotet-9784450-1' strongly suggests Emotet family involvement, which commonly uses macro-based delivery for its payloads. The obfuscated document body text does not provide further clues to the specific lure.

Heuristics 7

ClamAV: Doc.Malware.Emotet-9784450-1 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Emotet-9784450-1
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` `32c875cc5445b529213c7b353e717e973bc3b3565cfb6b70a94210d83d471e9e`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	16135 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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