Emotet Office (OLE) / .DOCX malware analysis — malicious · 820f15f2465a43b8

MALICIOUS

Office (OLE) / .DOCX

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

MD5: 12c27e4fa4c9ddd60201b46cb907cd1d SHA-1: a9e4c91f6d5267705e0005800d258ce1d7358041 SHA-256: 820f15f2465a43b8c59cb29bb3d528d3312a6ffef820420bb9c3730d2bd98fb6

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 the signature 'Doc.Downloader.Emotet-9765458-0', strongly suggesting the Emotet family. High-severity heuristics indicate the presence of VBA macros, specifically a 'Document_Open' auto-exec macro that utilizes 'CreateObject' and 'GetObject' calls. This points to a downloader functionality, where the macro likely executes code to fetch and run additional malicious content. The embedded URL, while benign, is noted as present in the document text.

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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