Emotet Office (OLE) / .DOCX malware analysis — malicious · d0b4e209318b7104

MALICIOUS

Office (OLE) / .DOCX

130.6 KB Created: 2020-09-28 15:20:00 Authoring application: Microsoft Office Word

MD5: 9b17dff82283be39ab209f9c1d342eea SHA-1: d7d3a25b617f5b7a6b500c697b2b515f3918dd09 SHA-256: d0b4e209318b7104ca155eb043a832b1306b3abd41ea4c15a67cb1851935df9c

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

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

The file was detected as malicious by ClamAV with the signature 'Doc.Malware.Emotet-9768661-0', strongly indicating the Emotet family. High-severity heuristics confirm the presence of VBA macros, specifically a 'Document_Open' macro that uses 'CreateObject', a common technique for executing arbitrary code. This macro is designed to run automatically when the document is opened, likely to download and execute a second-stage payload. The document body content is heavily obfuscated and does not provide clear user-facing text, further suggesting its purpose is solely to trigger the malicious macro.

Heuristics 7

ClamAV: Doc.Malware.Emotet-9768661-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Emotet-9768661-0
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` `2ce77a90790088f293710a707301ae69bfebe17386d7804fba58a5e382e47c64`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	6657 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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