Emotet Office (OLE) / .DOC malware analysis — malicious · b1e30c3be7da6e61

MALICIOUS

Office (OLE) / .DOC

130.3 KB Created: 2020-10-14 06:49:00 Authoring application: Microsoft Office Word

MD5: 4a54c461c988743693dc44d368027eab SHA-1: 04056232dfa3f35f324953bde83d3f6b7702c64a SHA-256: b1e30c3be7da6e61041e3fb63a1cbcd5959dde02797527c7a05845f7b936aa0b

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1059.001 PowerShell

The file is identified as malicious by ClamAV with the signature 'Doc.Malware.Emotet-9777975-1', indicating a high likelihood of it being an Emotet variant. Static analysis detected the presence of VBA macros, specifically a 'Document_Open' macro that utilizes 'CreateObject' and p-code execution, which are common techniques for Emotet to initiate its malicious activities. The document body contains heavily obfuscated content, further suggesting malicious intent. The primary attack pattern involves leveraging the auto-executing macro to download and execute a second-stage payload.

Heuristics 7

ClamAV: Doc.Malware.Emotet-9777975-1 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Emotet-9777975-1
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` `a1e06d58d65c5e173202fee73d0c268d74efbb2eb6a720ea5c8df5105ab9225c`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	9557 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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