Emotet Office (OLE) / .DOCX malware analysis — malicious · e943c361eeea788f

MALICIOUS

Office (OLE) / .DOCX

158.5 KB Created: 2020-09-17 04:18:00 Authoring application: Microsoft Office Word

MD5: 4d27988ec97dd433acf3467bb0b06f6b SHA-1: 885808ec800e4d2104d4695f4f6d42dc81b5d887 SHA-256: e943c361eeea788f3fbad581f7d9317d305cd0cb8b17c745b04479b16c52f735

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

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 presence of a VBA macro within a DOCX file, combined with the Emotet family attribution by ClamAV, suggests this document is designed to lure the user into opening it and triggering the macro, which then likely downloads and executes a second-stage payload.

Heuristics 7

ClamAV: Doc.Downloader.Emotet-9762517-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-9762517-0
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` `991adc1ef45638c65bfb92a710fcbce350fe87d4c8d6f02dc16d9130cc12b6e6`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	20616 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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