Emotet Office (OLE) / .DOCX malware analysis — malicious · c36eb53914faa7d1

MALICIOUS

Office (OLE) / .DOCX

171.5 KB Created: 2020-10-21 13:56:00 Authoring application: Microsoft Office Word

MD5: 779f3512fc69d816291f0d0d25ee670b SHA-1: 21049f5a87a152eec0f8b814caf891a5764607e1 SHA-256: c36eb53914faa7d13508475732f51856f84f163406a10e29c3022a59519c51f1

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.Dropper.EmotetUpdate1020-9778523-0', strongly suggesting it's an Emotet variant. The presence of a Document_Open VBA macro that uses CreateObject and p-code auto-execution indicates it's designed to run malicious code upon opening. This macro likely downloads and executes a second-stage payload, a common Emotet delivery technique.

Heuristics 7

ClamAV: Doc.Dropper.EmotetUpdate1020-9778523-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Dropper.EmotetUpdate1020-9778523-0
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` `113d36c64715b3a3694b52821b832bd3a24df7013a1eebeaaceb4571875cbc4c`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	23319 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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