Emotet Office (OLE) malware analysis — malicious · f3f1d11ee5db636d

MALICIOUS

Office (OLE)

156.2 KB Created: 2020-09-14 22:30:00 Authoring application: Microsoft Office Word

MD5: 99892582f50c7c21897227e16f671192 SHA-1: cb181e9f07f6f9c226991f583ecb9e1348b5609e SHA-256: f3f1d11ee5db636de3cedd7baa5dd08eca052c0988719432230a42df445088bd

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

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

The file contains VBA macros, specifically a Document_Open macro that uses CreateObject, indicating an attempt to execute code automatically when the document is opened. The ClamAV detection explicitly names this as Emotet. The primary function appears to be the execution of VBA code to download and run a second-stage payload, a common Emotet tactic. No specific URLs or executable payloads were directly extracted, but the ClamAV signature provides strong attribution.

Heuristics 7

ClamAV: Doc.Malware.Emotet-9762395-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Emotet-9762395-0
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` `52e73c091f55432254cc001aa79ef5320e8222785e35361d8b9c34d1d7c1b011`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	18535 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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