Emotet Office (OLE) / .DOCX malware analysis — malicious · a76f26ab417e48dd

MALICIOUS

Office (OLE) / .DOCX

189.8 KB Created: 2020-09-18 14:02:00 Authoring application: Microsoft Office Word

MD5: 1ddd36ae9b9f210a215f7f71021edf89 SHA-1: cf651ddefc87e88cc36f59af968da35cfb68d5cd SHA-256: a76f26ab417e48dda54f238aad10c895f9d842783705b9946da669a7768ec8f3

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

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

The file was detected as malicious by ClamAV with the signature 'Doc.Downloader.Emotet-9763588-0', indicating it is likely an Emotet downloader. Critical heuristics confirm the presence of VBA macros, specifically a Document_Open auto-execution macro that uses CreateObject, a common technique for executing malicious code. The presence of VBA macros and the specific ClamAV detection strongly suggest this file's purpose is to download and execute a secondary payload.

Heuristics 7

ClamAV: Doc.Downloader.Emotet-9763588-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-9763588-0
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` `439e57830647c2aa4289de5e25d2759440b9e1601599acc03def2897db1f3da9`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	20114 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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