Emotet Office (OLE) malware analysis — malicious · ba5839be90f4eb90

MALICIOUS

Office (OLE)

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

MD5: d3fc454d6d06729b33edbbda83e3c6aa SHA-1: b956414ebd474c872685b9503a1b66b859b5ceb6 SHA-256: ba5839be90f4eb90808f4f8d0229900f5dee99b80e21213ead7a42e814dbc509

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

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

The file is identified as malicious by ClamAV with the signature 'Doc.Malware.Emotet-9762395-0', strongly suggesting the Emotet family. High-severity heuristics indicate the presence of VBA macros, specifically a 'Document_Open' macro that utilizes 'CreateObject' for execution. This points to a common Emotet delivery method where macros are used to download and execute further stages of the malware. No document body text was available for analysis, but the script behavior is indicative of a downloader.

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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