Emotet Office (OLE) / .DOCX malware analysis — malicious · 26c2e61794f91c53

MALICIOUS

Office (OLE) / .DOCX

153.6 KB Created: 2020-10-19 12:20:00 Authoring application: Microsoft Office Word

MD5: c518ea15b6350d95cb2e09524b8ac04a SHA-1: 0e3fd497af871458324555ded18b2ef0cf4ef901 SHA-256: 26c2e61794f91c5303493c18f5d4f311b5f1356a2ab1973f003333f53c52376a

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

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

The file is detected as Emotet by ClamAV, a known downloader family. Heuristics indicate the presence of VBA macros, specifically a Document_Open auto-exec macro that uses CreateObject, suggesting it's designed to run malicious code upon opening. The document body, though heavily obfuscated, contains strings that appear to be related to PowerShell, further supporting the macro's likely intent to download and execute a second-stage payload. The presence of a VBA macro with auto-execution and CreateObject calls strongly points to Emotet's typical delivery mechanism.

Heuristics 7

ClamAV: Doc.Downloader.Emotet-9780400-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-9780400-0
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` `1b934c7a6a945d183f556fc460816db0116e14a6233b4c84dca18770500f607e`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	15515 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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