Emotet Office (OLE) malware analysis — malicious · 1e8efc4f5bc3f4c1

MALICIOUS

Office (OLE)

165.1 KB Created: 2020-09-15 19:31:00 Authoring application: Microsoft Office Word

MD5: ea10272ff8945d895c22341b89d540e9 SHA-1: 71204cb2c5bd8b2959dc628ade8300d7619faa01 SHA-256: 1e8efc4f5bc3f4c1233e6072bba8d608c2c37a722e84f3a69a5776225d962922

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-9761754-0. Static analysis reveals the presence of VBA macros, specifically a Document_Open macro that utilizes CreateObject. This indicates the document is designed to automatically execute code upon opening. The macro's purpose is to download and execute a second-stage payload, a common characteristic of Emotet. The embedded URL, though benign according to reputation, is likely a placeholder or part of a more complex delivery chain.

Heuristics 7

ClamAV: Doc.Downloader.Emotet-9761754-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-9761754-0
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` `75714e73d3e8750b3760209a7997fccc8b6d96f31b59fa1d20ad2b0ef4583864`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	25430 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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