Emotet Office (OLE) / .DOCX malware analysis — malicious · b3904eb0afc1b49d

MALICIOUS

Office (OLE) / .DOCX

150.7 KB Created: 2020-10-01 07:06:00 Authoring application: Microsoft Office Word

MD5: d20a6dab5b6b19743cee3edf23f7a68c SHA-1: 48ad724e3d4498c52b4ff84a07dbc01cbb648695 SHA-256: b3904eb0afc1b49dc3670af4e5748d16b6a67413d0323fab2cabb49f5b62d920

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

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

The critical ClamAV detection and high-severity heuristics for OLE_VBA_DOCOPEN, OLE_VBA_CREATEOBJ, and OLE_VBA_PCODE_AUTOEXEC_EXEC strongly indicate malicious VBA macro execution. The Document_Open macro is designed to run automatically upon opening the document, and the presence of CreateObject suggests the execution of arbitrary code. This is consistent with Emotet's typical behavior of downloading and executing further malicious payloads.

Heuristics 7

ClamAV: Doc.Malware.Emotet-9770156-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Emotet-9770156-0
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` `edcbc228f949e002f32423fcc2aae89e10357cf04ecc19d5df06e1df6cb28a25`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	10406 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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