Emotet Office (OLE) malware analysis — malicious · cec877d7e623e660

MALICIOUS

Office (OLE)

136.3 KB Created: 2020-10-15 07:11:00 Authoring application: Microsoft Office Word

MD5: 0298d7aba2402b950baeb20de473d7d2 SHA-1: 9adbb79f044b3c6796458da1e5990cbaf0230b78 SHA-256: cec877d7e623e6602b1e18fc74d3190a55525ef6fd35eb962fc378c9b16648e7

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 VBA macros, specifically a Document_Open macro that uses CreateObject, indicating an attempt to execute code upon opening. The ClamAV detection explicitly names this as 'Doc.Downloader.Emotet-9778182-0', strongly suggesting the Emotet family. The primary function appears to be downloading and executing a second-stage payload, as indicated by the 'Downloader' classification and the presence of the 'macros.bas' file.

Heuristics 7

ClamAV: Doc.Downloader.Emotet-9778182-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-9778182-0
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` `05186e239e76e1c73e5319ce1be1478c63b01a327801cd1193ca1ac174bd447f`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	11222 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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