Emotet Office (OLE) / .DOCX malware analysis — malicious · ba9ea1c4a35b426b

MALICIOUS

Office (OLE) / .DOCX

208.1 KB Created: 2020-12-22 21:50:00 Authoring application: Microsoft Office Word

MD5: 39bcfd51f7754ce3302050aa4cddf91a SHA-1: 1ca7ca155617f772e91598ebe160d73a5e4a2578 SHA-256: ba9ea1c4a35b426bb909eae9b8b40a6acdd5a80c1cea10d8a336338a7b282522

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 malicious intent. The presence of a 'Document_Open' macro suggests an attempt to automatically run code upon opening the document. This is consistent with Emotet's known behavior of downloading and executing further stages. The SHA256 hash is included as a primary IOC.

Heuristics 7

ClamAV: Doc.Downloader.EmotetRed02224-9938637-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.EmotetRed02224-9938637-0
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` `b559ca2a4b6431779fe74d7481a6f916cab3c2b891432c5ee8c97f5a35ecea25`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	15388 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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