Emotet Office (OLE) / .DOCX malware analysis — malicious · fdb3f7af3bbff306

MALICIOUS

Office (OLE) / .DOCX

220.0 KB Created: 2020-10-28 06:34:00 Authoring application: Microsoft Office Word

MD5: 158544ab3b99bc2e1ce86f3efbf52cd1 SHA-1: 0a0519770e5639d7634e575dcf2a94a653e922c6 SHA-256: fdb3f7af3bbff306674cd838932808a0ba6ca51888d5e54992df5c41a091aa94

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-9784450-1', indicating a high likelihood of the Emotet family. Critical heuristic firings for 'OLE_VBA_DOCOPEN', 'OLE_VBA_CREATEOBJ', and 'OLE_VBA_PCODE_AUTOEXEC_EXEC' confirm the presence of an auto-executing VBA macro that uses CreateObject. This macro is designed to execute arbitrary code, a common tactic for downloading and running further malicious payloads.

Heuristics 7

ClamAV: Doc.Malware.Emotet-9784450-1 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Emotet-9784450-1
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` `5c8508b4422f9cf9f0517311e463bebb8a10b40538c4b01e1d12399253dacfe3`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	16608 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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