Emotet Office (OLE) / .DOCX malware analysis — malicious · f071821e1cff4a62

MALICIOUS

Office (OLE) / .DOCX

203.5 KB Created: 2020-10-28 12:00:00 Authoring application: Microsoft Office Word

MD5: 40d46e5e9861c0211e199a25ec4c88ff SHA-1: 488353d273a09bcdb40e3bbca8a40f7b6a2a2b2a SHA-256: f071821e1cff4a6252b3d1e2dfa72c74cb4f0ce2c02b3e012a356ca29421e4e6

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

The file contains a VBA macro that automatically executes upon opening the document, as indicated by the OLE_VBA_DOCOPEN and OLE_VBA_PCODE_AUTOEXEC_EXEC heuristics. This macro is identified by ClamAV as Doc.Malware.Emotet-9784450-1, strongly suggesting the Emotet family. The macro's purpose is to download and execute a second-stage payload, a common Emotet tactic.

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` `b98bc6262a06d3ed5a9ef1ffbdbcd180eadae66998aa40fa38b234fae6ec34b7`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	17061 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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