Emotet Office (OLE) / .DOC malware analysis — malicious · c831c106f8014dfb

MALICIOUS

Office (OLE) / .DOC

125.2 KB Created: 2020-09-30 20:57:00 Authoring application: Microsoft Office Word

MD5: 9eba1247fb57ef1bf384dbf22106a1d8 SHA-1: 002e58630a3c60419ef94027c5979f306232e5f5 SHA-256: c831c106f8014dfb9f2010acf1b27a73896a4def52607e403a2a9740926ed0be

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1059.001 PowerShell T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV with the signature Doc.Malware.Emotet-9769866-1. Static analysis revealed the presence of VBA macros, specifically a Document_Open macro that utilizes CreateObject, indicating an auto-execution mechanism. This suggests the macro is intended to download and execute a second-stage payload. The obfuscated document body content does not provide further clues to the specific lure.

Heuristics 7

ClamAV: Doc.Malware.Emotet-9769866-1 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Emotet-9769866-1
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` `7cb9b8e5dcd6093fc36997f1ddba9977c3343a23efe112843f21e09b69e64d3a`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	10245 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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