Emotet Office (OLE) / .DOC malware analysis — malicious · e03e0f338f3a7be3

MALICIOUS

Office (OLE) / .DOC

163.4 KB Created: 2020-09-16 04:39:00 Authoring application: Microsoft Office Word

MD5: 78b0c716f0bce46152446995da9f59a9 SHA-1: 27bc88d99efd7f7de84fd3caa5612f886420ca1c SHA-256: e03e0f338f3a7be3efea2328458c8477749ff675da469936291a898d3af26337

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

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

The critical ClamAV detection and high-severity heuristics for VBA macros, including Document_Open and CreateObject calls, strongly indicate a malicious document. The presence of a VBA macro, specifically identified as 'macros.bas', and the 'OLE_VBA_PCODE_AUTOEXEC_EXEC' firing suggest the macro is designed to execute automatically upon opening. This macro likely downloads and executes a second-stage payload, consistent with Emotet's typical behavior.

Heuristics 7

ClamAV: Doc.Downloader.Emotet-9762285-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-9762285-0
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` `4a292a51323e6fe23215e1f68558fe1f1593e61fbf1f40c638bdf8f7e9fd0e8f`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	25505 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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