Emotet Office (OLE) / .DOC malware analysis — malicious · e755a943026d933b

MALICIOUS

Office (OLE) / .DOC

199.5 KB Created: 2020-10-21 21:54:00 Authoring application: Microsoft Office Word

MD5: 5996e24f2bb9bd4585b6588693e0aa33 SHA-1: c3d348461379177601d116f08722f46334bf9d55 SHA-256: e755a943026d933b3c65c01bcec32fe70deb9880bcb9f436289a3ce00e15a435

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 a malicious OLE document containing VBA macros, specifically a Document_Open macro that executes code via CreateObject. ClamAV identifies this as 'Doc.Dropper.EmotetiBlueUpdate1020-9780531-0', strongly suggesting a dropper functionality. The macro's auto-execution and use of CreateObject indicate it's designed to download and run a secondary payload. The document body content is heavily obfuscated and unreadable, providing no direct clues to the lure.

Heuristics 7

ClamAV: Doc.Dropper.EmotetiBlueUpdate1020-9780531-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Dropper.EmotetiBlueUpdate1020-9780531-0
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` `6c391991df0deaab71158b56a42728fa6cc0fa0f9cdacd00457125ab6d1e3e9d`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	23148 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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