Emotet Office (OLE) malware analysis — malicious · afb37eda6a67947d

MALICIOUS

Office (OLE)

148.9 KB Created: 2020-10-15 14:34:00 Authoring application: Microsoft Office Word

MD5: 72737bfe57672d267044a3f1949c2015 SHA-1: b9ba00eb3c27f09c5f22f122e96b79074262c148 SHA-256: afb37eda6a67947db80e85932008fb3bf63812618be278fa8d30adc1a641853f

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

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

The file was detected as malicious by ClamAV with the signature 'Doc.Downloader.Emotet-9778224-0', strongly indicating the Emotet family. Heuristics confirm the presence of VBA macros, specifically a Document_Open auto-execution macro that uses CreateObject, a common technique for downloading and executing secondary payloads. The obfuscated document body content does not provide further insight into the specific lure, but the macro execution is the primary indicator of malicious intent.

Heuristics 7

ClamAV: Doc.Downloader.Emotet-9778224-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-9778224-0
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` `b2c5689ca3757fa4157ea59f16365cb334e68487bb4f8496fb867967402af424`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	12861 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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