Emotet Office (OLE) / .DOCX malware analysis — malicious · 3ab0e38ba83a5c38

MALICIOUS

Office (OLE) / .DOCX

159.0 KB Created: 2020-10-26 20:02:00 Authoring application: Microsoft Office Word

MD5: 0f895b33c42c32f8393dd269b25e327a SHA-1: b60a146eee1b2d4163e1927666c8efe4f0b26c1a SHA-256: 3ab0e38ba83a5c38bf360f80849f9d1ef5ae83e0be4fdef0a2b71ad76efe4e89

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1105 Ingress Tool Transfer

The file contains VBA macros, specifically a Document_Open auto-exec macro, which is a common delivery mechanism for Emotet. The ClamAV detection explicitly names Emotet. The presence of the macros.bas file and the CreateObject call indicate the script's intent to download and execute a second-stage payload. The document body text appears to be heavily obfuscated or corrupted, providing no clear user-facing lure.

Heuristics 7

ClamAV: Doc.Downloader.Emotet-9784039-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-9784039-0
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` `25a58c4e712d1085864e82f7ab775526ec6adf7a6a7c9b5168c373897e87509d`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	15931 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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