Emotet Office (OLE) / .DOCX malware analysis — malicious · b5af6d7f4fb7ae66

MALICIOUS

Office (OLE) / .DOCX

181.5 KB Created: 2020-10-27 15:55:00 Authoring application: Microsoft Office Word

MD5: 7618dc5ada867a16ec1a9359a2d97d0c SHA-1: 214b7ecff1ad70cd7bc1cf2ca8eb730bfe77c75c SHA-256: b5af6d7f4fb7ae66fbaa6bec875c3445c56507a2307d92800e26f08d169adfd9

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 auto-execution and CreateObject calls, strongly indicate a malicious document. The presence of a Document_Open macro suggests an attempt to immediately execute malicious code upon opening. While the document body is heavily obfuscated, the overall pattern aligns with Emotet's typical delivery method of using macro-enabled documents to download and execute further stages.

Heuristics 7

ClamAV: Doc.Downloader.Emotet-9784225-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-9784225-0
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` `041f40187eb07e2256edf903ca2aa818eaff7dc6fcfd4bf44314c9f8902df953`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	16848 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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