Emotet Office (OLE) / .DOCX malware analysis — malicious · 390be22b6546961b

MALICIOUS

Office (OLE) / .DOCX

175.7 KB Created: 2020-10-30 13:48:00 Authoring application: Microsoft Office Word

MD5: fe3071dec1982ef4f6f1b505f107417d SHA-1: e9f93b2b6fc734bf9594398f18e14821eaa2122b SHA-256: 390be22b6546961bdf840560ab4b25598b3b46211ef3c9e4caffbcbce597fa4e

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 heuristic and high-severity VBA heuristics indicate the presence of malicious macros, specifically an auto-executing Document_Open macro that uses CreateObject. This is characteristic of Emotet malware, which often uses VBA macros to download and execute further payloads. The document body content is heavily obfuscated and unreadable, providing no direct clues to the lure.

Heuristics 7

ClamAV: Doc.Malware.Emotet-9785300-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Emotet-9785300-0
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` `6ef446d7bbe59b96b37194ceef7dfc21ebc83ff1edf01838a31098c50a7e733f`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	17445 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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