Emotet Office (OLE) / .DOC malware analysis — malicious · 5728eee65538ea54

MALICIOUS

Office (OLE) / .DOC

136.6 KB Created: 2019-05-30 15:31:00 Authoring application: Microsoft Office Word

MD5: 1c3e971b11c75df46d5e0e28050eb876 SHA-1: 7b38f2b3317139733aa4a8f2e4eef86e9c1f4de7 SHA-256: 5728eee65538ea548f875a51d731267536d0f7234add1d2d4eb1c2282220b28b

300 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1059.003 Windows Command Shell

The sample is a malicious Microsoft Word document containing VBA macros. The presence of an AutoOpen macro and a CreateObject call, specifically targeting the Win32_Process launcher via WMI, indicates the macro is designed to execute a payload. ClamAV identifies the file as 'Doc.Downloader.Emotet-10001946-0', strongly suggesting the Emotet family. The macro likely downloads and executes a second-stage payload.

Heuristics 8

VBA WMI Win32_Process launcher critical OLE_VBA_WMI_PROCESS_CREATE

VBA macro builds or references a WMI moniker for Win32_Process and invokes .Create to start a command. This is a high-confidence macro execution chain that often hides the WMI class name through string concatenation or helper functions.
ClamAV: Doc.Downloader.Emotet-10001946-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-10001946-0
AutoOpen macro high OLE_VBA_AUTOOPEN

AutoOpen 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` `05b2379edcc22b8c8b2049635917b61a4ecc1d11ee5f981060ce9a36a01d0fbf`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	10963 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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