Emotet Office (OLE) / .DOCX malware analysis — malicious · ab5a5093d4781106

MALICIOUS

Office (OLE) / .DOCX

141.0 KB Created: 2020-10-26 15:23:00 Authoring application: Microsoft Office Word

MD5: 65f2663346550ab88b3d248a48b7d784 SHA-1: 13cd68013977264c06464b4225fe406656663067 SHA-256: ab5a5093d4781106a29fbba85d9e9b11cd417d333cf923a06240da02a0e576f9

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1059.001 PowerShell T1105 Ingress Tool Transfer

The sample contains VBA macros, specifically a Document_Open auto-exec macro, which is a strong indicator of malicious intent. The ClamAV detection explicitly names Emotet, a known downloader family. The macros likely leverage CreateObject to download and execute a second-stage payload. The document body, though heavily obfuscated, appears to be part of a lure, possibly related to power or encoding, which is common for Emotet's social engineering tactics.

Heuristics 7

ClamAV: Doc.Downloader.Emotet-9784039-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-9784039-0
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` `ba1af4dba1aa75f927c350af06a94edad859236070021b34b079fb1b956a0718`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	16121 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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