Emotet Office (OLE) / .DOC malware analysis — malicious · b52633b2abc34f48

MALICIOUS

Office (OLE) / .DOC

129.1 KB Created: 2020-10-14 06:49:00 Authoring application: Microsoft Office Word

MD5: 7d18d53b5c2a873d03fceb183d635739 SHA-1: 93c55185eae3c2029b412fc67a1214d49813f7a2 SHA-256: b52633b2abc34f4801a8c6847b23c1ec9a32c862a3c01467f52161f87f662e1c

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 macro that is auto-executed. This macro utilizes CreateObject, a common technique for executing arbitrary code. The ClamAV detection explicitly names Emotet, and the heuristic firings strongly indicate a macro-based execution of a secondary payload. The obfuscated document body text does not provide direct clues to the user-facing lure, but the technical indicators are clear.

Heuristics 7

ClamAV: Doc.Malware.Emotet-9777975-1 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Emotet-9777975-1
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` `a1e06d58d65c5e173202fee73d0c268d74efbb2eb6a720ea5c8df5105ab9225c`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	9557 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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