Emotet Office (OLE) / .DOCX malware analysis — malicious · 3312e574ad376e51

MALICIOUS

Office (OLE) / .DOCX

162.3 KB Created: 2020-09-25 11:29:00 Authoring application: Microsoft Office Word

MD5: fdbd4c11d49bbe66c79f84c1cbd554fb SHA-1: e13683f044c3ffafa6be02db19043f58e6f40cce SHA-256: 3312e574ad376e5107d3142daacec097499a94f9b486aca34abd7b751e6e9c4c

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

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

The sample is a Microsoft Office document with VBA macros, specifically triggering on Document_Open. The critical ClamAV detection and high-severity heuristics indicate it's a downloader. The presence of the 'macros.bas' artifact and the Document_Open macro executing a CreateObject call strongly suggests it's designed to download and execute a second-stage payload, consistent with Emotet's behavior. The obfuscated document body text appears to be a lure, though its exact content is unreadable.

Heuristics 7

ClamAV: Doc.Downloader.Emotet-9767804-1 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-9767804-1
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` `426aca538f654441d66e245a00bfc928dacf37832bbf946df52799fa3650ecb1`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	24489 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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