Emotet Office (OLE) / .DOC malware analysis — malicious · 255356e511ea82d7

MALICIOUS

Office (OLE) / .DOC

159.0 KB

MD5: cf503936b5dc83fbf3e22042ccb69ec2 SHA-1: 3e23f115f2cf0fbfd01f1cd1d2798c3725691185 SHA-256: 255356e511ea82d72d4b188b5c05a1badb87f702a4db9246cf6fd064f08f36d0

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

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

The file contains VBA macros, specifically a Document_Open auto-execution macro, which is a common technique for Emotet. The heuristic firings indicate the use of CreateObject and p-code execution, strongly suggesting the execution of malicious code. The ClamAV detection explicitly names Emotet, confirming the family attribution. The document body content is heavily obfuscated and unreadable, but the presence of macros and the ClamAV signature point to a downloader functionality.

Heuristics 7

ClamAV: Doc.Downloader.EmotetRed0121-9822961-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.EmotetRed0121-9822961-0
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` `9b820b2402def2f5ee5a5a3a44ae4d03778e1b1e351b3b609e3682fdcff76601`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	13140 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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