Emotet Office (OLE) malware analysis — malicious · 48caa70a3b31ff97

MALICIOUS

Office (OLE)

133.9 KB Created: 2020-10-14 19:03:00 Authoring application: Microsoft Office Word

MD5: 2de396220df1dd758c66ebbc833c6d6e SHA-1: 831e6f238e98d5ea9b2aea91370684f0a4ba3b36 SHA-256: 48caa70a3b31ff976df78f2b4525b27307a53e88d1ce4f1846dd5801dd2c9b76

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

The file is identified as malicious by ClamAV with the signature Doc.Downloader.Emotet-9778091-0. Static analysis revealed VBA macros, specifically a Document_Open macro that utilizes CreateObject, indicating an attempt to execute code upon opening. This strongly suggests the document is a downloader for the Emotet banking trojan, which is known for its macro-based delivery and payload execution.

Heuristics 7

ClamAV: Doc.Downloader.Emotet-9778091-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-9778091-0
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` `35ba581a7d07c242723817cd679240b29046cc2a7f4485862374591738596dda`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	9454 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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