Emotet Office (OLE) / .DOC malware analysis — malicious · 30d32e0187649a16

MALICIOUS

Office (OLE) / .DOC

184.3 KB Created: 2019-12-17 22:30:00 Authoring application: Microsoft Office Word

MD5: 88838f238a34c435d7fb076c87355842 SHA-1: ac11a26881096cdc47fc8bd49d02cc5b19a73e3d SHA-256: 30d32e0187649a1613e5227d8764a5cf550f6458d7af759be91949fb28206e5a

300 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

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

The file is a malicious Microsoft Word document containing VBA macros. The critical heuristic 'OLE_VBA_USERFORM_HIDDEN_COMMAND_STAGER' indicates the presence of an auto-executing macro that uses a hidden UserForm to stage commands, likely to download and execute a second-stage payload. ClamAV detection confirms this as 'Doc.Downloader.Emotet-7461037-0'. The presence of the 'macros.bas' artifact further supports the macro-based execution.

Heuristics 8

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-7461037-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-7461037-0
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` `d14bcfe7544aa6c6e794ce3d8f1ef63184e5d30e1fe0d279737d32bebc4b34df`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	9741 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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