Emotet Office (OLE) malware analysis — malicious · 5edfab8bc3e2477d

MALICIOUS

Office (OLE)

229.6 KB Created: 2020-08-14 22:18:00 Authoring application: Microsoft Office Word

MD5: 1bc7fbc4f726fae3600a0e771545f882 SHA-1: 9a559f6a0ba69e7a2602c7f644d26fb81f565715 SHA-256: 5edfab8bc3e2477d378117feb625c811f539f25899d5f370b331af3dc9726c96

262 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1140 Deobfuscate/Decode Files or Information

The sample contains VBA macros, including a Document_Open macro and a hidden UserForm command stager, which are indicative of Emotet. The ClamAV signature also explicitly identifies it as Emotet. The macro is designed to download and execute a second-stage payload, a common tactic for Emotet to establish initial access and further compromise the system.

Heuristics 7

VBA UserForm hidden-property command stager critical OLE_VBA_USERFORM_HIDDEN_COMMAND_STAGER

VBA auto-exec macro creates a COM object from a decoded variable and reconstructs command text through Split/Join and hidden UserForm properties such as ControlTipText, Tag, Pages, or HelpContextId. This is a high-confidence macro downloader/loader shape seen in the reviewed OLE set, but it is not an Office CVE exploit primitive.
ClamAV: Doc.Downloader.Emotet-9343219-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-9343219-0
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.
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` `a41bede6b31c342f92c22747c23e2e7c6c77a42c803725a917c6179e5e099194`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	8350 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.