Emotet Office (OLE) / .DOCX malware analysis — malicious · 595abb95ad8bea9f

MALICIOUS

Office (OLE) / .DOCX

187.3 KB Created: 2020-09-16 18:57:00 Authoring application: Microsoft Office Word

MD5: 51374977bf95e8a02154a5479b372787 SHA-1: 80bb9a28eeb0205f5a23084bc9c7f2f5d7974a65 SHA-256: 595abb95ad8bea9fcd875fee5c21baaf5f829e997eb430384a8fd7f43da2e0cf

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

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

The file is identified as malicious by ClamAV with the signature 'Doc.Downloader.Emotet-9762284-0', strongly indicating the Emotet family. Static analysis reveals the presence of VBA macros, specifically a 'Document_Open' macro that utilizes 'CreateObject'. This combination is characteristic of Emotet's delivery mechanism, which typically involves macros that download and execute further stages of malware. The heuristic firings confirm the presence and execution intent of these macros.

Heuristics 7

ClamAV: Doc.Downloader.Emotet-9762284-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-9762284-0
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` `c8eacd47a01532c076db7a43a0d927f95cb78ca92fb9fc841101993b58287d9b`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	19132 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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