Emotet Office (OLE) / .DOC malware analysis — malicious · 33624b9d31b189ed

MALICIOUS

Office (OLE) / .DOC

158.5 KB Created: 2020-09-23 09:30:00 Authoring application: Microsoft Office Word

MD5: ca58c5fd5d453d0fd31e8e51d6f23405 SHA-1: a8af228b31de319012ce32687e263ddca87d26cd SHA-256: 33624b9d31b189eda28dd4ac76bea17844e79f229e8aff90f0a7f0e56ef90860

280 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

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

The sample contains a Document_Open VBA macro that is automatically executed upon opening the document. This macro utilizes CreateObject and GetObject functions, which are commonly used by malware to download and execute additional payloads. The ClamAV detection explicitly identifies this as Doc.Downloader.Emotet-9765530-0, strongly indicating the Emotet family and a downloader functionality. The embedded URL, although benign according to the analysis, is often a placeholder or part of the initial infection chain.

Heuristics 8

ClamAV: Doc.Downloader.Emotet-9765530-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-9765530-0
Document_Open macro high OLE_VBA_DOCOPEN

Document_Open macro
CreateObject call high OLE_VBA_CREATEOBJ

CreateObject call
GetObject call high OLE_VBA_GETOBJ

GetObject 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` `f2279a4d422668b89c293cd032386976cc753a5ff4104c672bc17e53928a662a`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	20002 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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