Emotet Office (OLE) / .DOC malware analysis — malicious · 267e0968268546d3

MALICIOUS

Office (OLE) / .DOC

129.1 KB Created: 2020-10-14 13:53:00 Authoring application: Microsoft Office Word

MD5: a45a40b43f06b0cc8476040f4bdb0071 SHA-1: 1215e207ec477e4fcef8af5fedfd221e330e45b6 SHA-256: 267e0968268546d3baab22dec3384ac3742dfc5be30e46c64a3ba2523264db33

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1204.002 Malicious File

The file is identified as malicious by ClamAV as 'Doc.Downloader.Emotet-9778040-0'. Static analysis reveals the presence of VBA macros, specifically a 'Document_Open' macro that utilizes 'CreateObject'. This indicates the macro is designed to execute automatically upon opening the document and likely downloads a second-stage payload. The obfuscated document body content does not provide further insight into the lure, but the combination of macro execution and the ClamAV signature strongly suggests an Emotet downloader.

Heuristics 7

ClamAV: Doc.Downloader.Emotet-9778040-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-9778040-0
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` `a085f52da3766ff03b3361ab273cac0c99aef403d2275ac551d698dcc8f8bb33`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	9635 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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