Emotet Office (OLE) / .DOC malware analysis — malicious · b1dcbbf2091463c7

MALICIOUS

Office (OLE) / .DOC

128.7 KB Created: 2020-10-14 07:17:00 Authoring application: Microsoft Office Word

MD5: 02d105558eab2f8cbcf6b13b94777d28 SHA-1: 3f4cd97d2bdcc57f9c76c86097ea174de34fedc6 SHA-256: b1dcbbf2091463c786f1597427686b505e1e166b0e260c15d924959608012a42

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

The file contains a malicious VBA macro, specifically a Document_Open auto-executing macro, which is a common delivery mechanism for Emotet. The ClamAV detection explicitly names this file as 'Doc.Dropper.Emotet-9777979-0'. The macro's purpose is to create objects and execute code, likely to download and run a second-stage payload. The document body content is heavily obfuscated and unreadable, providing no direct clues to the lure.

Heuristics 7

ClamAV: Doc.Dropper.Emotet-9777979-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Dropper.Emotet-9777979-0
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` `965146e7315f1a4ecc1a5d2fad03014e17bc883ca167a6078bfa90d897ebefad`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	9248 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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