Emotet Office (OLE) / .DOCX malware analysis — malicious · d83b4457e963cb82

MALICIOUS

Office (OLE) / .DOCX

157.6 KB Created: 2020-09-23 09:30:00 Authoring application: Microsoft Office Word

MD5: aa8bece60e84c74435a4eb5f9ef0f6c8 SHA-1: 58c3491ba27ff68b306e8df9114616c11c348de8 SHA-256: d83b4457e963cb82b3322d4ac94c492e4ee3c024573964d25ded75239d9623eb

280 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 malicious activity. The presence of a VBA macro in macros.bas, coupled with the detection of VBA p-code auto-execution, suggests the document is designed to download and execute a second-stage payload. The family is identified as Emotet based on the ClamAV signature.

Heuristics 8

ClamAV: Doc.Downloader.Emotet-9765530-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-9765530-0
Document_Open macro high OLE_VBA_DOCOPEN

Document_Open macro
CreateObject call high OLE_VBA_CREATEOBJ

CreateObject call
GetObject call high OLE_VBA_GETOBJ

GetObject 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` `f2279a4d422668b89c293cd032386976cc753a5ff4104c672bc17e53928a662a`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	20002 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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