Emotet Office (OLE) / .DOCX malware analysis — malicious · b1ba10a2cdff3f7b

MALICIOUS

Office (OLE) / .DOCX

154.4 KB Created: 2020-09-23 06:50:00 Authoring application: Microsoft Office Word

MD5: f7cdf9fb5bac9dc89e1f56c0ad3cff8f SHA-1: 6b195dee8a6b644d937055ff1ca79f816d067248 SHA-256: b1ba10a2cdff3f7b26aa3d4644b9ad18de9e3bcb492556dd03cb454ebec76b76

280 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-9765526-0'. Static analysis reveals the presence of VBA macros, specifically a 'Document_Open' macro that utilizes 'CreateObject' and 'GetObject' calls. This indicates the macro is designed to execute automatically upon opening the document, a common technique for Emotet to download and execute further malicious payloads.

Heuristics 8

ClamAV: Doc.Downloader.Emotet-9765526-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-9765526-0
Document_Open macro high OLE_VBA_DOCOPEN

Document_Open macro
CreateObject call high OLE_VBA_CREATEOBJ

CreateObject call
GetObject call high OLE_VBA_GETOBJ

GetObject 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` `b9cffb0e79babc4a34c180b4e03d44a772a85b301d6c58e52fd57eb504592664`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	19838 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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