Emotet Office (OLE) / .DOCX malware analysis — malicious · 4aaf8c3a6c1b803d

MALICIOUS

Office (OLE) / .DOCX

164.7 KB Created: 2020-12-29 08:56:00 Authoring application: Microsoft Office Word

MD5: e4ff8b3086f1e637f183ac7e1a3c5b7c SHA-1: 248e2a88f8ea07efff4cecb28d21ea7d09b311b2 SHA-256: 4aaf8c3a6c1b803d3e28c78fa2ecae821dcac3ef93a96cf57f7d964005094708

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 an auto-executing Document_Open macro and CreateObject calls, strongly indicate a malicious downloader. The presence of VBA macros suggests the intent is to execute code that downloads and runs a secondary payload. The Emotet family is a common association for this type of behavior.

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` `3e142f8f1ec045a49f005a6e1f22483ffd9a4a3fba2276e438481e79de80b3fc`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	8366 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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