Emotet Office (OLE) / .DOCX malware analysis — malicious · cbf2fe0231f079d9

MALICIOUS

Office (OLE) / .DOCX

156.3 KB Created: 2020-12-30 07:47:00 Authoring application: Microsoft Office Word

MD5: ea7ef32eced073287144fb13416e15d5 SHA-1: 30bd7dc67af3d23cfbf8a24578ef52710a204e81 SHA-256: cbf2fe0231f079d952671879c0b8c938067f5c5dea8bbd0e17508a3855416c64

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic for Applications T1059.001 PowerShell T1105 Ingress Tool Transfer

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 immediately execute code upon opening the document. While no specific download URLs were extracted, the overall pattern is consistent with Emotet's typical delivery mechanism of using macro-enabled documents to download and execute further stages.

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` `9bf607663b8a2bf6d5409ee86f6e92f88c816fbcbd12854fba6197389a76ce81`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	6567 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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