Emotet Office (OLE) / .DOCX malware analysis — malicious · 8b086b781acec127

MALICIOUS

Office (OLE) / .DOCX

171.7 KB Created: 2020-09-22 18:42:00 Authoring application: Microsoft Office Word

MD5: 8b561633eae816d387eb741a09b1cf3f SHA-1: 8d4e5e1e8828c18bb4b4f855a0e538a49532d14b SHA-256: 8b086b781acec12715982f30c39eb5d20950325e39a5d84b33a6df96d9edcf8c

280 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

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

The sample is identified as malicious by ClamAV with a specific Emotet signature. High-severity heuristics indicate the presence of VBA macros, including an auto-executing 'Document_Open' macro that uses CreateObject and GetObject calls. These elements strongly suggest the execution of malicious VBA code, typical for Emotet's downloader functionality. The presence of the 'macros.bas' file further supports this, indicating the macro code itself was extracted.

Heuristics 8

ClamAV: Doc.Downloader.Emotet-9765458-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-9765458-0
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` `4c1d45ab400998e9849e03fb488749a88ec1375f45fc179ad034e6ee3d25ecfd`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	21065 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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