Emotet Office (OLE) / .DOCX malware analysis — malicious · bcf9a2940f961548

MALICIOUS

Office (OLE) / .DOCX

188.2 KB Created: 2020-09-16 18:57:00 Authoring application: Microsoft Office Word

MD5: 6dc444a8215b8b676a67af1bd6349846 SHA-1: 164e253573ce3621e50d0641412a9d37b33fadfc SHA-256: bcf9a2940f9615487667d5d0edb9dfcb6e5917b328bc56ada5fe0d5b9f43a9c7

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

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

The file contains VBA macros, specifically a Document_Open macro that utilizes CreateObject. This is a common technique for Emotet to download and execute a second-stage payload. The ClamAV detection explicitly names Emotet, and the heuristic firings strongly support this classification. The embedded URL is benign, but the macro execution is the primary indicator of malicious activity.

Heuristics 7

ClamAV: Doc.Downloader.Emotet-9762284-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-9762284-0
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` `c8eacd47a01532c076db7a43a0d927f95cb78ca92fb9fc841101993b58287d9b`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	19132 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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